Class Image

Wrap a NetVips.Internal.VipsImage object.

Inheritance

object

CriticalFinalizerObject

SafeHandle

GObject

VipsObject

Image

MutableImage

Implements

IDisposable

Inherited Members

VipsObject.OnPostClose

VipsObject.GetBlurb(string)

VipsObject.GetDescription()

GObject.SignalConnect<T>(string, T, nint)

GObject.SignalHandlerDisconnect(ulong)

GObject.SignalHandlersDisconnectByFunc<T>(T, nint)

GObject.SignalHandlersDisconnectByData(nint)

GObject.ReleaseHandle()

GObject.IsInvalid

SafeHandle.handle

SafeHandle.Close()

SafeHandle.DangerousAddRef(ref bool)

SafeHandle.DangerousGetHandle()

SafeHandle.DangerousRelease()

SafeHandle.Dispose()

SafeHandle.Dispose(bool)

SafeHandle.SetHandle(IntPtr)

SafeHandle.SetHandleAsInvalid()

SafeHandle.IsClosed

object.Equals(object, object)

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

Namespace: NetVips

Assembly: NetVips.dll

Syntax

public class Image : VipsObject, IDisposable

Properties

Bands

Number of bands in image

Declaration

public int Bands { get; }

Property Value

Type	Description
int

Coding

Pixel coding

Declaration

public Enums.Coding Coding { get; }

Property Value

Type	Description
Enums.Coding

Filename

Image filename

Declaration

public string Filename { get; }

Property Value

Type	Description
string

Format

Pixel format in image

Declaration

public Enums.BandFormat Format { get; }

Property Value

Type	Description
Enums.BandFormat

Height

Image height in pixels

Declaration

public int Height { get; }

Property Value

Type	Description
int

Interpretation

Pixel interpretation

Declaration

public Enums.Interpretation Interpretation { get; }

Property Value

Type	Description
Enums.Interpretation

this[int]

Overload [].

Declaration

public Image this[int i] { get; }

Parameters

Type	Name	Description
int	i	The band element to pull out.

Property Value

Type	Description
Image	A new Image.

Remarks

Use [] to pull out band elements from an image. For example:

using var green = rgbImage[1];

Will make a new one-band image from band 1 (the middle band).

this[int, int]

A synonym for Getpoint(int, int, bool?).

Declaration

public double[] this[int x, int y] { get; }

Parameters

Type	Name	Description
int	x	Point to read.
int	y	Point to read.

Property Value

Type	Description
double[]	An array of doubles.

Examples

double[] outArray = in[x, y];

PageHeight

Multi-page images can have a page height. If page-height is not set, it defaults to the image height.

Declaration

public int PageHeight { get; }

Property Value

Type	Description
int

Remarks

At least libvips 8.8 is needed.

Width

Image width in pixels

Declaration

public int Width { get; }

Property Value

Type	Description
int

Xoffset

Horizontal offset of origin

Declaration

public int Xoffset { get; }

Property Value

Type	Description
int

Xres

Horizontal resolution in pixels/mm

Declaration

public double Xres { get; }

Property Value

Type	Description
double

Yoffset

Vertical offset of origin

Declaration

public int Yoffset { get; }

Property Value

Type	Description
int

Yres

Vertical resolution in pixels/mm

Declaration

public double Yres { get; }

Property Value

Type	Description
double

Methods

Abs()

Absolute value of an image.

Declaration

public Image Abs()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Abs();

Acos()

Return the inverse cosine of an image in degrees.

Declaration

public Image Acos()

Returns

Type	Description
Image	A new Image.

Acosh()

Return the inverse hyperbolic cosine of an image in radians.

Declaration

public Image Acosh()

Returns

Type	Description
Image	A new Image.

Add(Image)

Add two images.

Declaration

public Image Add(Image right)

Parameters

Type	Name	Description
Image	right	Right-hand image argument.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = left.Add(right);

AddAlpha()

Append an alpha channel to an image.

Declaration

public Image AddAlpha()

Returns

Type	Description
Image	A new Image.

Examples

using rgba = rgb.AddAlpha();

Affine(double[], GObject, int[], double?, double?, double?, double?, double[], bool?, Extend?)

Affine transform of an image.

Declaration

public Image Affine(double[] matrix, GObject interpolate = null, int[] oarea = null, double? odx = null, double? ody = null, double? idx = null, double? idy = null, double[] background = null, bool? premultiplied = null, Enums.Extend? extend = null)

Parameters

Type	Name	Description
double[]	matrix	Transformation matrix.
GObject	interpolate	Interpolate pixels with this.
int[]	oarea	Area of output to generate.
double?	odx	Horizontal output displacement.
double?	ody	Vertical output displacement.
double?	idx	Horizontal input displacement.
double?	idy	Vertical input displacement.
double[]	background	Background value.
bool?	premultiplied	Images have premultiplied alpha.
Enums.Extend?	extend	How to generate the extra pixels.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Affine(matrix, interpolate: GObject, oarea: int[], odx: double, ody: double, idx: double, idy: double, background: double[], premultiplied: bool, extend: Enums.Extend);

Analyzeload(string, out ForeignFlags, bool?, Access?, FailOn?, bool?)

Load an Analyze6 image.

Declaration

public static Image Analyzeload(string filename, out Enums.ForeignFlags flags, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
Enums.ForeignFlags	flags	Flags for this file.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Analyzeload(filename, out var flags, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Analyzeload(string, bool?, Access?, FailOn?, bool?)

Load an Analyze6 image.

Declaration

public static Image Analyzeload(string filename, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Analyzeload(filename, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Arrayjoin(Image[], int?, int?, double[], Align?, Align?, int?, int?)

Join an array of images.

Declaration

public static Image Arrayjoin(Image[] @in, int? across = null, int? shim = null, double[] background = null, Enums.Align? halign = null, Enums.Align? valign = null, int? hspacing = null, int? vspacing = null)

Parameters

Type	Name	Description
Image[]	in	Array of input images.
int?	across	Number of images across grid.
int?	shim	Pixels between images.
double[]	background	Colour for new pixels.
Enums.Align?	halign	Align on the left, centre or right.
Enums.Align?	valign	Align on the top, centre or bottom.
int?	hspacing	Horizontal spacing between images.
int?	vspacing	Vertical spacing between images.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Arrayjoin(@in, across: int, shim: int, background: double[], halign: Enums.Align, valign: Enums.Align, hspacing: int, vspacing: int);

Asin()

Return the inverse sine of an image in degrees.

Declaration

public Image Asin()

Returns

Type	Description
Image	A new Image.

Asinh()

Return the inverse hyperbolic sine of an image in radians.

Declaration

public Image Asinh()

Returns

Type	Description
Image	A new Image.

Atan()

Return the inverse tangent of an image in degrees.

Declaration

public Image Atan()

Returns

Type	Description
Image	A new Image.

Atan2(Image)

Arc tangent of an image in degrees.

Declaration

public Image Atan2(Image x)

Parameters

Type	Name	Description
Image	x	Arc tangent of y / x.

Returns

Type	Description
Image	A new Image.

Atan2(double)

Arc tangent of an constant in degrees.

Declaration

public Image Atan2(double x)

Parameters

Type	Name	Description
double	x	Arc tangent of y / x.

Returns

Type	Description
Image	A new Image.

Atan2(double[])

Arc tangent of an array in degrees.

Declaration

public Image Atan2(double[] x)

Parameters

Type	Name	Description
double[]	x	Arc tangent of y / x.

Returns

Type	Description
Image	A new Image.

Atan2(int[])

Arc tangent of an array in degrees.

Declaration

public Image Atan2(int[] x)

Parameters

Type	Name	Description
int[]	x	Arc tangent of y / x.

Returns

Type	Description
Image	A new Image.

Atanh()

Return the inverse hyperbolic tangent of an image in radians.

Declaration

public Image Atanh()

Returns

Type	Description
Image	A new Image.

Autorot()

Autorotate image by exif tag.

Declaration

public Image Autorot()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Autorot();

Autorot(out Angle)

Autorotate image by exif tag.

Declaration

public Image Autorot(out Enums.Angle angle)

Parameters

Type	Name	Description
Enums.Angle	angle	Angle image was rotated by.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Autorot(out var angle);

Autorot(out Angle, out bool)

Autorotate image by exif tag.

Declaration

public Image Autorot(out Enums.Angle angle, out bool flip)

Parameters

Type	Name	Description
Enums.Angle	angle	Angle image was rotated by.
bool	flip	Whether the image was flipped or not.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Autorot(out var angle, out var flip);

Avg()

Find image average.

Declaration

public double Avg()

Returns

Type	Description
double	A double.

Examples

double @out = in.Avg();

BandAnd()

AND image bands together.

Declaration

public Image BandAnd()

Returns

Type	Description
Image	A new Image.

BandEor()

EOR image bands together.

Declaration

public Image BandEor()

Returns

Type	Description
Image	A new Image.

BandExists(int)

Does band exist in image.

Declaration

public bool BandExists(int i)

Parameters

Type	Name	Description
int	i	The index to fetch.

Returns

Type	Description
bool	true if the index exists.

BandOr()

OR image bands together.

Declaration

public Image BandOr()

Returns

Type	Description
Image	A new Image.

Bandbool(OperationBoolean)

Boolean operation across image bands.

Declaration

public Image Bandbool(Enums.OperationBoolean boolean)

Parameters

Type	Name	Description
Enums.OperationBoolean	boolean	Boolean to perform.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Bandbool(boolean);

Bandfold(int?)

Fold up x axis into bands.

Declaration

public Image Bandfold(int? factor = null)

Parameters

Type	Name	Description
int?	factor	Fold by this factor.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Bandfold(factor: int);

Bandjoin(params Image[])

Append a set of images bandwise.

Declaration

public Image Bandjoin(params Image[] images)

Parameters

Type	Name	Description
Image[]	images	Array of images.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = image.Bandjoin(image2, image3);

Bandjoin(params double[])

Append a set of constants bandwise.

Declaration

public Image Bandjoin(params double[] doubles)

Parameters

Type	Name	Description
double[]	doubles	Array of constants.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = image.Bandjoin(127.5, 255.0);

Bandjoin(params int[])

Append a set of constants bandwise.

Declaration

public Image Bandjoin(params int[] ints)

Parameters

Type	Name	Description
int[]	ints	Array of constants.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = image.Bandjoin(255, 128);

Bandjoin(params object[])

Append a set of mixed images and constants bandwise.

Declaration

public Image Bandjoin(params object[] objects)

Parameters

Type	Name	Description
object[]	objects	Array of mixed images and constants.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = image.Bandjoin(image2, 255);

BandjoinConst(double[])

Append a constant band to an image.

Declaration

public Image BandjoinConst(double[] c)

Parameters

Type	Name	Description
double[]	c	Array of constants to add.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.BandjoinConst(c);

Bandmean()

Band-wise average.

Declaration

public Image Bandmean()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Bandmean();

Bandrank(Image, int?)

Band-wise rank a image.

Declaration

public Image Bandrank(Image other, int? index = null)

Parameters

Type	Name	Description
Image	other	Input image.
int?	index	Select this band element from sorted list.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = image.Bandrank(other, index: int);

Bandrank(Image[], int?)

Band-wise rank a set of images.

Declaration

public Image Bandrank(Image[] images, int? index = null)

Parameters

Type	Name	Description
Image[]	images	Array of input images.
int?	index	Select this band element from sorted list.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = image.Bandrank(other, index: int);

Bandrank(double[], int?)

Band-wise rank a set of constants.

Declaration

public Image Bandrank(double[] doubles, int? index = null)

Parameters

Type	Name	Description
double[]	doubles	Array of constants.
int?	index	Select this band element from sorted list.

Returns

Type	Description
Image	A new Image

Examples

using Image @out = image.Bandrank(other, index: int);

Bandrank(int[], int?)

Band-wise rank a set of constants.

Declaration

public Image Bandrank(int[] ints, int? index = null)

Parameters

Type	Name	Description
int[]	ints	Array of constants.
int?	index	Select this band element from sorted list.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = image.Bandrank(other, index: int);

Bandrank(object[], int?)

Band-wise rank a set of mixed images and constants.

Declaration

public Image Bandrank(object[] objects, int? index = null)

Parameters

Type	Name	Description
object[]	objects	Array of mixed images and constants.
int?	index	Select this band element from sorted list.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = image.Bandrank(new object[] { image2, 255 }, index: int);

Bandsplit()

Split an n-band image into n separate images.

Declaration

public Image[] Bandsplit()

Returns

Type	Description
Image[]	An array of Image.

Bandunfold(int?)

Unfold image bands into x axis.

Declaration

public Image Bandunfold(int? factor = null)

Parameters

Type	Name	Description
int?	factor	Unfold by this factor.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Bandunfold(factor: int);

Black(int, int, int?)

Make a black image.

Declaration

public static Image Black(int width, int height, int? bands = null)

Parameters

Type	Name	Description
int	width	Image width in pixels.
int	height	Image height in pixels.
int?	bands	Number of bands in image.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Black(width, height, bands: int);

Boolean(Image, OperationBoolean)

Boolean operation on two images.

Declaration

public Image Boolean(Image right, Enums.OperationBoolean boolean)

Parameters

Type	Name	Description
Image	right	Right-hand image argument.
Enums.OperationBoolean	boolean	Boolean to perform.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = left.Boolean(right, boolean);

BooleanConst(OperationBoolean, double[])

Boolean operations against a constant.

Declaration

public Image BooleanConst(Enums.OperationBoolean boolean, double[] c)

Parameters

Type	Name	Description
Enums.OperationBoolean	boolean	Boolean to perform.
double[]	c	Array of constants.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.BooleanConst(boolean, c);

Buildlut()

Build a look-up table.

Declaration

public Image Buildlut()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Buildlut();

Byteswap()

Byteswap an image.

Declaration

public Image Byteswap()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Byteswap();

CMC2LCh()

Transform LCh to CMC.

Declaration

public Image CMC2LCh()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.CMC2LCh();

CMYK2XYZ()

Transform CMYK to XYZ.

Declaration

public Image CMYK2XYZ()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.CMYK2XYZ();

Canny(double?, Precision?)

Canny edge detector.

Declaration

public Image Canny(double? sigma = null, Enums.Precision? precision = null)

Parameters

Type	Name	Description
double?	sigma	Sigma of Gaussian.
Enums.Precision?	precision	Convolve with this precision.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Canny(sigma: double, precision: Enums.Precision);

Case(params Image[])

Use pixel values to pick cases from an array of images.

Declaration

public Image Case(params Image[] images)

Parameters

Type	Name	Description
Image[]	images	Array of case images.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = index.Case(images);

Case(params double[])

Use pixel values to pick cases from an array of constants.

Declaration

public Image Case(params double[] doubles)

Parameters

Type	Name	Description
double[]	doubles	Array of constants.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = index.Case(10.5, 20.5);

Case(params int[])

Use pixel values to pick cases from an array of constants.

Declaration

public Image Case(params int[] ints)

Parameters

Type	Name	Description
int[]	ints	Array of constants.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = index.Case(10, 20);

Case(params object[])

Use pixel values to pick cases from an a set of mixed images and constants.

Declaration

public Image Case(params object[] objects)

Parameters

Type	Name	Description
object[]	objects	Array of mixed images and constants.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = index.Case(image, 10);

Cast(BandFormat, bool?)

Cast an image.

Declaration

public Image Cast(Enums.BandFormat format, bool? shift = null)

Parameters

Type	Name	Description
Enums.BandFormat	format	Format to cast to.
bool?	shift	Shift integer values up and down.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Cast(format, shift: bool);

Ceil()

Return the largest integral value not greater than the argument.

Declaration

public Image Ceil()

Returns

Type	Description
Image	A new Image.

Clamp(double?, double?)

Clamp values of an image.

Declaration

public Image Clamp(double? min = null, double? max = null)

Parameters

Type	Name	Description
double?	min	Minimum value.
double?	max	Maximum value.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Clamp(min: double, max: double);

Colourspace(Interpretation, Interpretation?)

Convert to a new colorspace.

Declaration

public Image Colourspace(Enums.Interpretation space, Enums.Interpretation? sourceSpace = null)

Parameters

Type	Name	Description
Enums.Interpretation	space	Destination color space.
Enums.Interpretation?	sourceSpace	Source color space.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Colourspace(space, sourceSpace: Enums.Interpretation);

Compass(Image, int?, Angle45?, Combine?, Precision?, int?, int?)

Convolve with rotating mask.

Declaration

public Image Compass(Image mask, int? times = null, Enums.Angle45? angle = null, Enums.Combine? combine = null, Enums.Precision? precision = null, int? layers = null, int? cluster = null)

Parameters

Type	Name	Description
Image	mask	Input matrix image.
int?	times	Rotate and convolve this many times.
Enums.Angle45?	angle	Rotate mask by this much between convolutions.
Enums.Combine?	combine	Combine convolution results like this.
Enums.Precision?	precision	Convolve with this precision.
int?	layers	Use this many layers in approximation.
int?	cluster	Cluster lines closer than this in approximation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Compass(mask, times: int, angle: Enums.Angle45, combine: Enums.Combine, precision: Enums.Precision, layers: int, cluster: int);

Complex(OperationComplex)

Perform a complex operation on an image.

Declaration

public Image Complex(Enums.OperationComplex cmplx)

Parameters

Type	Name	Description
Enums.OperationComplex	cmplx	Complex to perform.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Complex(cmplx);

Complex2(Image, OperationComplex2)

Complex binary operations on two images.

Declaration

public Image Complex2(Image right, Enums.OperationComplex2 cmplx)

Parameters

Type	Name	Description
Image	right	Right-hand image argument.
Enums.OperationComplex2	cmplx	Binary complex operation to perform.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = left.Complex2(right, cmplx);

Complexform(Image)

Form a complex image from two real images.

Declaration

public Image Complexform(Image right)

Parameters

Type	Name	Description
Image	right	Right-hand image argument.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = left.Complexform(right);

Complexget(OperationComplexget)

Get a component from a complex image.

Declaration

public Image Complexget(Enums.OperationComplexget get)

Parameters

Type	Name	Description
Enums.OperationComplexget	get	Complex to perform.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Complexget(get);

Composite(Image, BlendMode, int?, int?, Interpretation?, bool?)

A synonym for Composite2(Image, BlendMode, int?, int?, Interpretation?, bool?).

Declaration

public Image Composite(Image overlay, Enums.BlendMode mode, int? x = null, int? y = null, Enums.Interpretation? compositingSpace = null, bool? premultiplied = null)

Parameters

Type	Name	Description
Image	overlay	Overlay image.
Enums.BlendMode	mode	VipsBlendMode to join with.
int?	x	x position of overlay.
int?	y	y position of overlay.
Enums.Interpretation?	compositingSpace	Composite images in this colour space.
bool?	premultiplied	Images have premultiplied alpha.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = base.Composite(overlay, mode, x: int, y: int, compositingSpace: Enums.Interpretation, premultiplied: bool);

Composite(Image[], BlendMode[], int[], int[], Interpretation?, bool?)

Blend an array of images with an array of blend modes.

Declaration

public Image Composite(Image[] images, Enums.BlendMode[] modes, int[] x = null, int[] y = null, Enums.Interpretation? compositingSpace = null, bool? premultiplied = null)

Parameters

Type	Name	Description
Image[]	images	Array of input images.
BlendMode[]	modes	Array of VipsBlendMode to join with.
int[]	x	Array of x coordinates to join at.
int[]	y	Array of y coordinates to join at.
Enums.Interpretation?	compositingSpace	Composite images in this colour space.
bool?	premultiplied	Images have premultiplied alpha.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = image.Composite(images, modes, x: int[], y: int[], compositingSpace: Enums.Interpretation, premultiplied: bool);

Composite2(Image, BlendMode, int?, int?, Interpretation?, bool?)

Blend a pair of images with a blend mode.

Declaration

public Image Composite2(Image overlay, Enums.BlendMode mode, int? x = null, int? y = null, Enums.Interpretation? compositingSpace = null, bool? premultiplied = null)

Parameters

Type	Name	Description
Image	overlay	Overlay image.
Enums.BlendMode	mode	VipsBlendMode to join with.
int?	x	x position of overlay.
int?	y	y position of overlay.
Enums.Interpretation?	compositingSpace	Composite images in this colour space.
bool?	premultiplied	Images have premultiplied alpha.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = base.Composite2(overlay, mode, x: int, y: int, compositingSpace: Enums.Interpretation, premultiplied: bool);

Conj()

Return the complex conjugate of an image.

Declaration

public Image Conj()

Returns

Type	Description
Image	A new Image.

Contains(string)

Check if the underlying image contains an property of metadata.

Declaration

public bool Contains(string name)

Parameters

Type	Name	Description
string	name	The name of the piece of metadata to check for.

Returns

Type	Description
bool	true if the metadata exits; otherwise, false.

Conv(Image, Precision?, int?, int?)

Convolution operation.

Declaration

public Image Conv(Image mask, Enums.Precision? precision = null, int? layers = null, int? cluster = null)

Parameters

Type	Name	Description
Image	mask	Input matrix image.
Enums.Precision?	precision	Convolve with this precision.
int?	layers	Use this many layers in approximation.
int?	cluster	Cluster lines closer than this in approximation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Conv(mask, precision: Enums.Precision, layers: int, cluster: int);

Conva(Image, int?, int?)

Approximate integer convolution.

Declaration

public Image Conva(Image mask, int? layers = null, int? cluster = null)

Parameters

Type	Name	Description
Image	mask	Input matrix image.
int?	layers	Use this many layers in approximation.
int?	cluster	Cluster lines closer than this in approximation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Conva(mask, layers: int, cluster: int);

Convasep(Image, int?)

Approximate separable integer convolution.

Declaration

public Image Convasep(Image mask, int? layers = null)

Parameters

Type	Name	Description
Image	mask	Input matrix image.
int?	layers	Use this many layers in approximation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Convasep(mask, layers: int);

Convf(Image)

Float convolution operation.

Declaration

public Image Convf(Image mask)

Parameters

Type	Name	Description
Image	mask	Input matrix image.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Convf(mask);

Convi(Image)

Int convolution operation.

Declaration

public Image Convi(Image mask)

Parameters

Type	Name	Description
Image	mask	Input matrix image.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Convi(mask);

Convsep(Image, Precision?, int?, int?)

Separable convolution operation.

Declaration

public Image Convsep(Image mask, Enums.Precision? precision = null, int? layers = null, int? cluster = null)

Parameters

Type	Name	Description
Image	mask	Input matrix image.
Enums.Precision?	precision	Convolve with this precision.
int?	layers	Use this many layers in approximation.
int?	cluster	Cluster lines closer than this in approximation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Convsep(mask, precision: Enums.Precision, layers: int, cluster: int);

Copy(int?, int?, int?, BandFormat?, Coding?, Interpretation?, double?, double?, int?, int?)

Copy an image.

Declaration

public Image Copy(int? width = null, int? height = null, int? bands = null, Enums.BandFormat? format = null, Enums.Coding? coding = null, Enums.Interpretation? interpretation = null, double? xres = null, double? yres = null, int? xoffset = null, int? yoffset = null)

Parameters

Type	Name	Description
int?	width	Image width in pixels.
int?	height	Image height in pixels.
int?	bands	Number of bands in image.
Enums.BandFormat?	format	Pixel format in image.
Enums.Coding?	coding	Pixel coding.
Enums.Interpretation?	interpretation	Pixel interpretation.
double?	xres	Horizontal resolution in pixels/mm.
double?	yres	Vertical resolution in pixels/mm.
int?	xoffset	Horizontal offset of origin.
int?	yoffset	Vertical offset of origin.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Copy(width: int, height: int, bands: int, format: Enums.BandFormat, coding: Enums.Coding, interpretation: Enums.Interpretation, xres: double, yres: double, xoffset: int, yoffset: int);

CopyMemory()

Copy an image to memory.

Declaration

public Image CopyMemory()

Returns

Type	Description
Image	A new Image.

Remarks

A large area of memory is allocated, the image is rendered to that memory area, and a new image is returned which wraps that large memory area.

Exceptions

Type	Condition
VipsException	If unable to copy to memory.

Cos()

Return the cosine of an image in degrees.

Declaration

public Image Cos()

Returns

Type	Description
Image	A new Image.

Cosh()

Return the hyperbolic cosine of an image in radians.

Declaration

public Image Cosh()

Returns

Type	Description
Image	A new Image.

Countlines(Direction)

Count lines in an image.

Declaration

public double Countlines(Enums.Direction direction)

Parameters

Type	Name	Description
Enums.Direction	direction	Countlines left-right or up-down.

Returns

Type	Description
double	A double.

Examples

double nolines = in.Countlines(direction);

Crop(int, int, int, int)

A synonym for ExtractArea(int, int, int, int).

Declaration

public Image Crop(int left, int top, int width, int height)

Parameters

Type	Name	Description
int	left	Left edge of extract area.
int	top	Top edge of extract area.
int	width	Width of extract area.
int	height	Height of extract area.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = input.Crop(left, top, width, height);

Csvload(string, out ForeignFlags, int?, int?, string, string, bool?, Access?, FailOn?, bool?)

Load csv.

Declaration

public static Image Csvload(string filename, out Enums.ForeignFlags flags, int? skip = null, int? lines = null, string whitespace = null, string separator = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
Enums.ForeignFlags	flags	Flags for this file.
int?	skip	Skip this many lines at the start of the file.
int?	lines	Read this many lines from the file.
string	whitespace	Set of whitespace characters.
string	separator	Set of separator characters.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Csvload(filename, out var flags, skip: int, lines: int, whitespace: string, separator: string, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Csvload(string, int?, int?, string, string, bool?, Access?, FailOn?, bool?)

Load csv.

Declaration

public static Image Csvload(string filename, int? skip = null, int? lines = null, string whitespace = null, string separator = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
int?	skip	Skip this many lines at the start of the file.
int?	lines	Read this many lines from the file.
string	whitespace	Set of whitespace characters.
string	separator	Set of separator characters.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Csvload(filename, skip: int, lines: int, whitespace: string, separator: string, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

CsvloadSource(Source, out ForeignFlags, int?, int?, string, string, bool?, Access?, FailOn?, bool?)

Load csv.

Declaration

public static Image CsvloadSource(Source source, out Enums.ForeignFlags flags, int? skip = null, int? lines = null, string whitespace = null, string separator = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Source	source	Source to load from.
Enums.ForeignFlags	flags	Flags for this file.
int?	skip	Skip this many lines at the start of the file.
int?	lines	Read this many lines from the file.
string	whitespace	Set of whitespace characters.
string	separator	Set of separator characters.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.CsvloadSource(source, out var flags, skip: int, lines: int, whitespace: string, separator: string, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

CsvloadSource(Source, int?, int?, string, string, bool?, Access?, FailOn?, bool?)

Load csv.

Declaration

public static Image CsvloadSource(Source source, int? skip = null, int? lines = null, string whitespace = null, string separator = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Source	source	Source to load from.
int?	skip	Skip this many lines at the start of the file.
int?	lines	Read this many lines from the file.
string	whitespace	Set of whitespace characters.
string	separator	Set of separator characters.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.CsvloadSource(source, skip: int, lines: int, whitespace: string, separator: string, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

CsvloadStream(Stream, out ForeignFlags, int?, int?, string, string, bool?, Access?, FailOn?, bool?)

Load csv.

Declaration

public static Image CsvloadStream(Stream stream, out Enums.ForeignFlags flags, int? skip = null, int? lines = null, string whitespace = null, string separator = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Stream	stream	Stream to load from.
Enums.ForeignFlags	flags	Flags for this file.
int?	skip	Skip this many lines at the start of the file.
int?	lines	Read this many lines from the file.
string	whitespace	Set of whitespace characters.
string	separator	Set of separator characters.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.CsvloadStream(stream, out var flags, skip: int, lines: int, whitespace: string, separator: string, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

CsvloadStream(Stream, int?, int?, string, string, bool?, Access?, FailOn?, bool?)

Load csv.

Declaration

public static Image CsvloadStream(Stream stream, int? skip = null, int? lines = null, string whitespace = null, string separator = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Stream	stream	Stream to load from.
int?	skip	Skip this many lines at the start of the file.
int?	lines	Read this many lines from the file.
string	whitespace	Set of whitespace characters.
string	separator	Set of separator characters.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.CsvloadStream(stream, skip: int, lines: int, whitespace: string, separator: string, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Csvsave(string, string, ForeignKeep?, double[], int?, string)

Save image to csv.

Declaration

public void Csvsave(string filename, string separator = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
string	filename	Filename to save to.
string	separator	Separator characters.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.Csvsave(filename, separator: string, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

CsvsaveStream(Stream, string, ForeignKeep?, double[], int?, string)

Save image to csv.

Declaration

public void CsvsaveStream(Stream stream, string separator = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
Stream	stream	Stream to save to.
string	separator	Separator characters.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.CsvsaveStream(stream, separator: string, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

CsvsaveTarget(Target, string, ForeignKeep?, double[], int?, string)

Save image to csv.

Declaration

public void CsvsaveTarget(Target target, string separator = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
Target	target	Target to save to.
string	separator	Separator characters.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.CsvsaveTarget(target, separator: string, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

DE00(Image)

Calculate dE00.

Declaration

public Image DE00(Image right)

Parameters

Type	Name	Description
Image	right	Right-hand input image.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = left.DE00(right);

DE76(Image)

Calculate dE76.

Declaration

public Image DE76(Image right)

Parameters

Type	Name	Description
Image	right	Right-hand input image.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = left.DE76(right);

DECMC(Image)

Calculate dECMC.

Declaration

public Image DECMC(Image right)

Parameters

Type	Name	Description
Image	right	Right-hand input image.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = left.DECMC(right);

Deviate()

Find image standard deviation.

Declaration

public double Deviate()

Returns

Type	Description
double	A double.

Examples

double @out = in.Deviate();

Dilate(Image)

Dilate with a structuring element.

Declaration

public Image Dilate(Image mask)

Parameters

Type	Name	Description
Image	mask	The structuring element.

Returns

Type	Description
Image	A new Image.

Divide(Image)

Divide two images.

Declaration

public Image Divide(Image right)

Parameters

Type	Name	Description
Image	right	Right-hand image argument.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = left.Divide(right);

Dzsave(string, string, ForeignDzLayout?, string, int?, int?, bool?, ForeignDzDepth?, Angle?, ForeignDzContainer?, int?, RegionShrink?, int?, string, int?, ForeignKeep?, double[], int?, string)

Save image to deepzoom file.

Declaration

public void Dzsave(string filename, string imagename = null, Enums.ForeignDzLayout? layout = null, string suffix = null, int? overlap = null, int? tileSize = null, bool? centre = null, Enums.ForeignDzDepth? depth = null, Enums.Angle? angle = null, Enums.ForeignDzContainer? container = null, int? compression = null, Enums.RegionShrink? regionShrink = null, int? skipBlanks = null, string id = null, int? q = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
string	filename	Filename to save to.
string	imagename	Image name.
Enums.ForeignDzLayout?	layout	Directory layout.
string	suffix	Filename suffix for tiles.
int?	overlap	Tile overlap in pixels.
int?	tileSize	Tile size in pixels.
bool?	centre	Center image in tile.
Enums.ForeignDzDepth?	depth	Pyramid depth.
Enums.Angle?	angle	Rotate image during save.
Enums.ForeignDzContainer?	container	Pyramid container type.
int?	compression	ZIP deflate compression level.
Enums.RegionShrink?	regionShrink	Method to shrink regions.
int?	skipBlanks	Skip tiles which are nearly equal to the background.
string	id	Resource ID.
int?	q	Q factor.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.Dzsave(filename, imagename: string, layout: Enums.ForeignDzLayout, suffix: string, overlap: int, tileSize: int, centre: bool, depth: Enums.ForeignDzDepth, angle: Enums.Angle, container: Enums.ForeignDzContainer, compression: int, regionShrink: Enums.RegionShrink, skipBlanks: int, id: string, q: int, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

DzsaveBuffer(string, ForeignDzLayout?, string, int?, int?, bool?, ForeignDzDepth?, Angle?, ForeignDzContainer?, int?, RegionShrink?, int?, string, int?, ForeignKeep?, double[], int?, string)

Save image to dz buffer.

Declaration

public byte[] DzsaveBuffer(string imagename = null, Enums.ForeignDzLayout? layout = null, string suffix = null, int? overlap = null, int? tileSize = null, bool? centre = null, Enums.ForeignDzDepth? depth = null, Enums.Angle? angle = null, Enums.ForeignDzContainer? container = null, int? compression = null, Enums.RegionShrink? regionShrink = null, int? skipBlanks = null, string id = null, int? q = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
string	imagename	Image name.
Enums.ForeignDzLayout?	layout	Directory layout.
string	suffix	Filename suffix for tiles.
int?	overlap	Tile overlap in pixels.
int?	tileSize	Tile size in pixels.
bool?	centre	Center image in tile.
Enums.ForeignDzDepth?	depth	Pyramid depth.
Enums.Angle?	angle	Rotate image during save.
Enums.ForeignDzContainer?	container	Pyramid container type.
int?	compression	ZIP deflate compression level.
Enums.RegionShrink?	regionShrink	Method to shrink regions.
int?	skipBlanks	Skip tiles which are nearly equal to the background.
string	id	Resource ID.
int?	q	Q factor.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Returns

Type	Description
byte[]	An array of bytes.

Examples

byte[] buffer = in.DzsaveBuffer(imagename: string, layout: Enums.ForeignDzLayout, suffix: string, overlap: int, tileSize: int, centre: bool, depth: Enums.ForeignDzDepth, angle: Enums.Angle, container: Enums.ForeignDzContainer, compression: int, regionShrink: Enums.RegionShrink, skipBlanks: int, id: string, q: int, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

DzsaveStream(Stream, string, ForeignDzLayout?, string, int?, int?, bool?, ForeignDzDepth?, Angle?, ForeignDzContainer?, int?, RegionShrink?, int?, string, int?, ForeignKeep?, double[], int?, string)

Save image to deepzoom stream.

Declaration

public void DzsaveStream(Stream stream, string imagename = null, Enums.ForeignDzLayout? layout = null, string suffix = null, int? overlap = null, int? tileSize = null, bool? centre = null, Enums.ForeignDzDepth? depth = null, Enums.Angle? angle = null, Enums.ForeignDzContainer? container = null, int? compression = null, Enums.RegionShrink? regionShrink = null, int? skipBlanks = null, string id = null, int? q = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
Stream	stream	Stream to save to.
string	imagename	Image name.
Enums.ForeignDzLayout?	layout	Directory layout.
string	suffix	Filename suffix for tiles.
int?	overlap	Tile overlap in pixels.
int?	tileSize	Tile size in pixels.
bool?	centre	Center image in tile.
Enums.ForeignDzDepth?	depth	Pyramid depth.
Enums.Angle?	angle	Rotate image during save.
Enums.ForeignDzContainer?	container	Pyramid container type.
int?	compression	ZIP deflate compression level.
Enums.RegionShrink?	regionShrink	Method to shrink regions.
int?	skipBlanks	Skip tiles which are nearly equal to the background.
string	id	Resource ID.
int?	q	Q factor.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.DzsaveStream(stream, imagename: string, layout: Enums.ForeignDzLayout, suffix: string, overlap: int, tileSize: int, centre: bool, depth: Enums.ForeignDzDepth, angle: Enums.Angle, container: Enums.ForeignDzContainer, compression: int, regionShrink: Enums.RegionShrink, skipBlanks: int, id: string, q: int, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

DzsaveTarget(Target, string, ForeignDzLayout?, string, int?, int?, bool?, ForeignDzDepth?, Angle?, ForeignDzContainer?, int?, RegionShrink?, int?, string, int?, ForeignKeep?, double[], int?, string)

Save image to deepzoom target.

Declaration

public void DzsaveTarget(Target target, string imagename = null, Enums.ForeignDzLayout? layout = null, string suffix = null, int? overlap = null, int? tileSize = null, bool? centre = null, Enums.ForeignDzDepth? depth = null, Enums.Angle? angle = null, Enums.ForeignDzContainer? container = null, int? compression = null, Enums.RegionShrink? regionShrink = null, int? skipBlanks = null, string id = null, int? q = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
Target	target	Target to save to.
string	imagename	Image name.
Enums.ForeignDzLayout?	layout	Directory layout.
string	suffix	Filename suffix for tiles.
int?	overlap	Tile overlap in pixels.
int?	tileSize	Tile size in pixels.
bool?	centre	Center image in tile.
Enums.ForeignDzDepth?	depth	Pyramid depth.
Enums.Angle?	angle	Rotate image during save.
Enums.ForeignDzContainer?	container	Pyramid container type.
int?	compression	ZIP deflate compression level.
Enums.RegionShrink?	regionShrink	Method to shrink regions.
int?	skipBlanks	Skip tiles which are nearly equal to the background.
string	id	Resource ID.
int?	q	Q factor.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.DzsaveTarget(target, imagename: string, layout: Enums.ForeignDzLayout, suffix: string, overlap: int, tileSize: int, centre: bool, depth: Enums.ForeignDzDepth, angle: Enums.Angle, container: Enums.ForeignDzContainer, compression: int, regionShrink: Enums.RegionShrink, skipBlanks: int, id: string, q: int, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

Embed(int, int, int, int, Extend?, double[])

Embed an image in a larger image.

Declaration

public Image Embed(int x, int y, int width, int height, Enums.Extend? extend = null, double[] background = null)

Parameters

Type	Name	Description
int	x	Left edge of input in output.
int	y	Top edge of input in output.
int	width	Image width in pixels.
int	height	Image height in pixels.
Enums.Extend?	extend	How to generate the extra pixels.
double[]	background	Color for background pixels.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Embed(x, y, width, height, extend: Enums.Extend, background: double[]);

Equal(Image)

This operation compares two images on equality.

Declaration

public Image Equal(Image right)

Parameters

Type	Name	Description
Image	right	A Image to compare.

Returns

Type	Description
Image	A new Image.

Equal(double)

This operation compares two images on equality.

Declaration

public Image Equal(double right)

Parameters

Type	Name	Description
double	right	A double constant to compare.

Returns

Type	Description
Image	A new Image.

Equal(double[])

This operation compares two images on equality.

Declaration

public Image Equal(double[] right)

Parameters

Type	Name	Description
double[]	right	A double array to compare.

Returns

Type	Description
Image	A new Image.

Equal(int[])

This operation compares two images on equality.

Declaration

public Image Equal(int[] right)

Parameters

Type	Name	Description
int[]	right	A integer array to compare.

Returns

Type	Description
Image	A new Image.

Equals(Image)

Compares the hashcode of two images.

Declaration

public bool Equals(Image other)

Parameters

Type	Name	Description
Image	other	The Image to compare.

Returns

Type	Description
bool	true if equal; otherwise, false.

Equals(object)

Determines whether the specified object is equal to the current image.

Declaration

public override bool Equals(object obj)

Parameters

Type	Name	Description
object	obj	The object to compare with the current image.

Returns

Type	Description
bool	true if the specified object is equal to the current image; otherwise, false.

Overrides

object.Equals(object)

Erode(Image)

Erode with a structuring element.

Declaration

public Image Erode(Image mask)

Parameters

Type	Name	Description
Image	mask	The structuring element.

Returns

Type	Description
Image	A new Image.

Exp()

Return e ** pixel.

Declaration

public Image Exp()

Returns

Type	Description
Image	A new Image.

Exp10()

Return 10 ** pixel.

Declaration

public Image Exp10()

Returns

Type	Description
Image	A new Image.

ExtractArea(int, int, int, int)

Extract an area from an image.

Declaration

public Image ExtractArea(int left, int top, int width, int height)

Parameters

Type	Name	Description
int	left	Left edge of extract area.
int	top	Top edge of extract area.
int	width	Width of extract area.
int	height	Height of extract area.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = input.ExtractArea(left, top, width, height);

ExtractBand(int, int?)

Extract band from an image.

Declaration

public Image ExtractBand(int band, int? n = null)

Parameters

Type	Name	Description
int	band	Band to extract.
int?	n	Number of bands to extract.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.ExtractBand(band, n: int);

Eye(int, int, bool?, double?)

Make an image showing the eye's spatial response.

Declaration

public static Image Eye(int width, int height, bool? uchar = null, double? factor = null)

Parameters

Type	Name	Description
int	width	Image width in pixels.
int	height	Image height in pixels.
bool?	uchar	Output an unsigned char image.
double?	factor	Maximum spatial frequency.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Eye(width, height, uchar: bool, factor: double);

Falsecolour()

False-color an image.

Declaration

public Image Falsecolour()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Falsecolour();

Fastcor(Image)

Fast correlation.

Declaration

public Image Fastcor(Image @ref)

Parameters

Type	Name	Description
Image	ref	Input reference image.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Fastcor(@ref);

FillNearest()

Fill image zeros with nearest non-zero pixel.

Declaration

public Image FillNearest()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.FillNearest();

FillNearest(out Image)

Fill image zeros with nearest non-zero pixel.

Declaration

public Image FillNearest(out Image distance)

Parameters

Type	Name	Description
Image	distance	Distance to nearest non-zero pixel.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.FillNearest(out var distance);

FindLoad(string)

Find the name of the load operation vips will use to load a file.

Declaration

public static string FindLoad(string filename)

Parameters

Type	Name	Description
string	filename	The file to test.

Returns

Type	Description
string	The name of the load operation, or null.

Remarks

For example "VipsForeignLoadJpegFile". You can use this to work out what options to pass to NewFromFile(string, bool?, Access?, FailOn?, VOption).

FindLoadBuffer(byte[])

Find the name of the load operation vips will use to load a buffer.

Declaration

public static string FindLoadBuffer(byte[] data)

Parameters

Type	Name	Description
byte[]	data	The buffer to test.

Returns

Type	Description
string	The name of the load operation, or null.

Remarks

For example "VipsForeignLoadJpegBuffer". You can use this to work out what options to pass to NewFromBuffer(byte[], string, Access?, FailOn?, VOption).

FindLoadBuffer(char[])

Find the name of the load operation vips will use to load a buffer.

Declaration

public static string FindLoadBuffer(char[] data)

Parameters

Type	Name	Description
char[]	data	The buffer to test.

Returns

Type	Description
string	The name of the load operation, or null.

Remarks

For example "VipsForeignLoadJpegBuffer". You can use this to work out what options to pass to NewFromBuffer(char[], string, Access?, FailOn?, VOption).

FindLoadBuffer(ReadOnlySpan<byte>)

Find the name of the load operation vips will use to load a buffer.

Declaration

public static string FindLoadBuffer(ReadOnlySpan<byte> data)

Parameters

Type	Name	Description
ReadOnlySpan<byte>	data	The buffer to test.

Returns

Type	Description
string	The name of the load operation, or null.

Remarks

For example "VipsForeignLoadJpegBuffer". You can use this to work out what options to pass to NewFromBuffer(ReadOnlySpan<byte>, string, Access?, FailOn?, VOption).

FindLoadBuffer(string)

Find the name of the load operation vips will use to load a buffer.

Declaration

public static string FindLoadBuffer(string data)

Parameters

Type	Name	Description
string	data	The buffer to test.

Returns

Type	Description
string	The name of the load operation, or null.

Remarks

For example "VipsForeignLoadJpegBuffer". You can use this to work out what options to pass to NewFromBuffer(string, string, Access?, FailOn?, VOption).

FindLoadSource(Source)

Find the name of the load operation vips will use to load a source.

Declaration

public static string FindLoadSource(Source source)

Parameters

Type	Name	Description
Source	source	The source to test.

Returns

Type	Description
string	The name of the load operation, or null.

Remarks

For example "VipsForeignLoadJpegSource". You can use this to work out what options to pass to NewFromSource(Source, string, Access?, FailOn?, VOption).

FindLoadStream(Stream)

Find the name of the load operation vips will use to load a stream.

Declaration

public static string FindLoadStream(Stream stream)

Parameters

Type	Name	Description
Stream	stream	The stream to test.

Returns

Type	Description
string	The name of the load operation, or null.

Remarks

For example "VipsForeignLoadJpegSource". You can use this to work out what options to pass to NewFromStream(Stream, string, Access?, FailOn?, VOption).

FindTrim(double?, double[], bool?)

Search an image for non-edge areas.

Declaration

public object[] FindTrim(double? threshold = null, double[] background = null, bool? lineArt = null)

Parameters

Type	Name	Description
double?	threshold	Object threshold.
double[]	background	Color for background pixels.
bool?	lineArt	Enable line art mode.

Returns

Type	Description
object[]	An array of objects.

Examples

var output = in.FindTrim(threshold: double, background: double[], lineArt: bool);

Fitsload(string, out ForeignFlags, bool?, Access?, FailOn?, bool?)

Load a FITS image.

Declaration

public static Image Fitsload(string filename, out Enums.ForeignFlags flags, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
Enums.ForeignFlags	flags	Flags for this file.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Fitsload(filename, out var flags, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Fitsload(string, bool?, Access?, FailOn?, bool?)

Load a FITS image.

Declaration

public static Image Fitsload(string filename, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Fitsload(filename, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

FitsloadSource(Source, out ForeignFlags, bool?, Access?, FailOn?, bool?)

Load FITS from a source.

Declaration

public static Image FitsloadSource(Source source, out Enums.ForeignFlags flags, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Source	source	Source to load from.
Enums.ForeignFlags	flags	Flags for this file.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.FitsloadSource(source, out var flags, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

FitsloadSource(Source, bool?, Access?, FailOn?, bool?)

Load FITS from a source.

Declaration

public static Image FitsloadSource(Source source, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Source	source	Source to load from.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.FitsloadSource(source, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

FitsloadStream(Stream, out ForeignFlags, bool?, Access?, FailOn?, bool?)

Load FITS from a stream.

Declaration

public static Image FitsloadStream(Stream stream, out Enums.ForeignFlags flags, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Stream	stream	Stream to load from.
Enums.ForeignFlags	flags	Flags for this file.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.FitsloadStream(stream, out var flags, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

FitsloadStream(Stream, bool?, Access?, FailOn?, bool?)

Load FITS from a stream.

Declaration

public static Image FitsloadStream(Stream stream, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Stream	stream	Stream to load from.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.FitsloadStream(stream, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Fitssave(string, ForeignKeep?, double[], int?, string)

Save image to fits file.

Declaration

public void Fitssave(string filename, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
string	filename	Filename to save to.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.Fitssave(filename, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

Flatten(double[], double?)

Flatten alpha out of an image.

Declaration

public Image Flatten(double[] background = null, double? maxAlpha = null)

Parameters

Type	Name	Description
double[]	background	Background value.
double?	maxAlpha	Maximum value of alpha channel.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Flatten(background: double[], maxAlpha: double);

Flip(Direction)

Flip an image.

Declaration

public Image Flip(Enums.Direction direction)

Parameters

Type	Name	Description
Enums.Direction	direction	Direction to flip image.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Flip(direction);

FlipHor()

Flip horizontally.

Declaration

public Image FlipHor()

Returns

Type	Description
Image	A new Image.

FlipVer()

Flip vertically.

Declaration

public Image FlipVer()

Returns

Type	Description
Image	A new Image.

Float2rad()

Transform float RGB to Radiance coding.

Declaration

public Image Float2rad()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Float2rad();

Floor()

Return the largest integral value not greater than the argument.

Declaration

public Image Floor()

Returns

Type	Description
Image	A new Image.

Fractsurf(int, int, double)

Make a fractal surface.

Declaration

public static Image Fractsurf(int width, int height, double fractalDimension)

Parameters

Type	Name	Description
int	width	Image width in pixels.
int	height	Image height in pixels.
double	fractalDimension	Fractal dimension.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Fractsurf(width, height, fractalDimension);

Freqmult(Image)

Frequency-domain filtering.

Declaration

public Image Freqmult(Image mask)

Parameters

Type	Name	Description
Image	mask	Input mask image.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Freqmult(mask);

Fwfft()

Forward FFT.

Declaration

public Image Fwfft()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Fwfft();

Gamma(double?)

Gamma an image.

Declaration

public Image Gamma(double? exponent = null)

Parameters

Type	Name	Description
double?	exponent	Gamma factor.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Gamma(exponent: double);

Gaussblur(double, double?, Precision?)

Gaussian blur.

Declaration

public Image Gaussblur(double sigma, double? minAmpl = null, Enums.Precision? precision = null)

Parameters

Type	Name	Description
double	sigma	Sigma of Gaussian.
double?	minAmpl	Minimum amplitude of Gaussian.
Enums.Precision?	precision	Convolve with this precision.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Gaussblur(sigma, minAmpl: double, precision: Enums.Precision);

Gaussmat(double, double, bool?, Precision?)

Make a gaussian image.

Declaration

public static Image Gaussmat(double sigma, double minAmpl, bool? separable = null, Enums.Precision? precision = null)

Parameters

Type	Name	Description
double	sigma	Sigma of Gaussian.
double	minAmpl	Minimum amplitude of Gaussian.
bool?	separable	Generate separable Gaussian.
Enums.Precision?	precision	Generate with this precision.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Gaussmat(sigma, minAmpl, separable: bool, precision: Enums.Precision);

Gaussnoise(int, int, double?, double?, int?)

Make a gaussnoise image.

Declaration

public static Image Gaussnoise(int width, int height, double? sigma = null, double? mean = null, int? seed = null)

Parameters

Type	Name	Description
int	width	Image width in pixels.
int	height	Image height in pixels.
double?	sigma	Standard deviation of pixels in generated image.
double?	mean	Mean of pixels in generated image.
int?	seed	Random number seed.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Gaussnoise(width, height, sigma: double, mean: double, seed: int);

Get(string)

Get an item of metadata.

Declaration

public object Get(string name)

Parameters

Type	Name	Description
string	name	The name of the piece of metadata to get.

Returns

Type	Description
object	The metadata item as a C# value.

Remarks

Fetches an item of metadata as a C# value. For example:

var orientation = image.Get("orientation");

would fetch the image orientation.

Exceptions

Type	Condition
VipsException	If unable to get name.

GetFields()

Get a list of all the metadata fields on an image.

Declaration

public string[] GetFields()

Returns

Type	Description
string[]	An array of strings or null.

Remarks

At least libvips 8.5 is needed.

GetHashCode()

Serves as the default hash function.

Declaration

public override int GetHashCode()

Returns

Type	Description
int	A hash code for the current image.

Overrides

object.GetHashCode()

GetTypeOf(string)

Get the GType of an item of metadata.

Declaration

public nint GetTypeOf(string name)

Parameters

Type	Name	Description
string	name	The name of the piece of metadata to get the type of.

Returns

Type	Description
nint	A new instance of nint initialized to the GType or Zero if the property does not exist.

Remarks

Fetch the GType of a piece of metadata, or Zero if the named item does not exist. See GValue.

Getpoint(int, int, bool?)

Read a point from an image.

Declaration

public double[] Getpoint(int x, int y, bool? unpackComplex = null)

Parameters

Type	Name	Description
int	x	Point to read.
int	y	Point to read.
bool?	unpackComplex	Complex pixels should be unpacked.

Returns

Type	Description
double[]	An array of doubles.

Examples

double[] outArray = in.Getpoint(x, y, unpackComplex: bool);

Gifload(string, out ForeignFlags, int?, int?, bool?, Access?, FailOn?, bool?)

Load GIF with libnsgif.

Declaration

public static Image Gifload(string filename, out Enums.ForeignFlags flags, int? n = null, int? page = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
Enums.ForeignFlags	flags	Flags for this file.
int?	n	Number of pages to load, -1 for all.
int?	page	First page to load.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Gifload(filename, out var flags, n: int, page: int, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Gifload(string, int?, int?, bool?, Access?, FailOn?, bool?)

Load GIF with libnsgif.

Declaration

public static Image Gifload(string filename, int? n = null, int? page = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
int?	n	Number of pages to load, -1 for all.
int?	page	First page to load.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Gifload(filename, n: int, page: int, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

GifloadBuffer(byte[], out ForeignFlags, int?, int?, bool?, Access?, FailOn?, bool?)

Load GIF with libnsgif.

Declaration

public static Image GifloadBuffer(byte[] buffer, out Enums.ForeignFlags flags, int? n = null, int? page = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
byte[]	buffer	Buffer to load from.
Enums.ForeignFlags	flags	Flags for this file.
int?	n	Number of pages to load, -1 for all.
int?	page	First page to load.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.GifloadBuffer(buffer, out var flags, n: int, page: int, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

GifloadBuffer(byte[], int?, int?, bool?, Access?, FailOn?, bool?)

Load GIF with libnsgif.

Declaration

public static Image GifloadBuffer(byte[] buffer, int? n = null, int? page = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
byte[]	buffer	Buffer to load from.
int?	n	Number of pages to load, -1 for all.
int?	page	First page to load.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.GifloadBuffer(buffer, n: int, page: int, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

GifloadSource(Source, out ForeignFlags, int?, int?, bool?, Access?, FailOn?, bool?)

Load gif from source.

Declaration

public static Image GifloadSource(Source source, out Enums.ForeignFlags flags, int? n = null, int? page = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Source	source	Source to load from.
Enums.ForeignFlags	flags	Flags for this file.
int?	n	Number of pages to load, -1 for all.
int?	page	First page to load.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.GifloadSource(source, out var flags, n: int, page: int, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

GifloadSource(Source, int?, int?, bool?, Access?, FailOn?, bool?)

Load gif from source.

Declaration

public static Image GifloadSource(Source source, int? n = null, int? page = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Source	source	Source to load from.
int?	n	Number of pages to load, -1 for all.
int?	page	First page to load.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.GifloadSource(source, n: int, page: int, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

GifloadStream(Stream, out ForeignFlags, int?, int?, bool?, Access?, FailOn?, bool?)

Load gif from stream.

Declaration

public static Image GifloadStream(Stream stream, out Enums.ForeignFlags flags, int? n = null, int? page = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Stream	stream	Stream to load from.
Enums.ForeignFlags	flags	Flags for this file.
int?	n	Number of pages to load, -1 for all.
int?	page	First page to load.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.GifloadStream(stream, out var flags, n: int, page: int, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

GifloadStream(Stream, int?, int?, bool?, Access?, FailOn?, bool?)

Load gif from stream.

Declaration

public static Image GifloadStream(Stream stream, int? n = null, int? page = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Stream	stream	Stream to load from.
int?	n	Number of pages to load, -1 for all.
int?	page	First page to load.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.GifloadStream(stream, n: int, page: int, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Gifsave(string, double?, int?, int?, double?, bool?, double?, bool?, ForeignKeep?, double[], int?, string)

Save as gif.

Declaration

public void Gifsave(string filename, double? dither = null, int? effort = null, int? bitdepth = null, double? interframeMaxerror = null, bool? reuse = null, double? interpaletteMaxerror = null, bool? interlace = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
string	filename	Filename to save to.
double?	dither	Amount of dithering.
int?	effort	Quantisation effort.
int?	bitdepth	Number of bits per pixel.
double?	interframeMaxerror	Maximum inter-frame error for transparency.
bool?	reuse	Reuse palette from input.
double?	interpaletteMaxerror	Maximum inter-palette error for palette reusage.
bool?	interlace	Generate an interlaced (progressive) GIF.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.Gifsave(filename, dither: double, effort: int, bitdepth: int, interframeMaxerror: double, reuse: bool, interpaletteMaxerror: double, interlace: bool, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

GifsaveBuffer(double?, int?, int?, double?, bool?, double?, bool?, ForeignKeep?, double[], int?, string)

Save as gif.

Declaration

public byte[] GifsaveBuffer(double? dither = null, int? effort = null, int? bitdepth = null, double? interframeMaxerror = null, bool? reuse = null, double? interpaletteMaxerror = null, bool? interlace = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
double?	dither	Amount of dithering.
int?	effort	Quantisation effort.
int?	bitdepth	Number of bits per pixel.
double?	interframeMaxerror	Maximum inter-frame error for transparency.
bool?	reuse	Reuse palette from input.
double?	interpaletteMaxerror	Maximum inter-palette error for palette reusage.
bool?	interlace	Generate an interlaced (progressive) GIF.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Returns

Type	Description
byte[]	An array of bytes.

Examples

byte[] buffer = in.GifsaveBuffer(dither: double, effort: int, bitdepth: int, interframeMaxerror: double, reuse: bool, interpaletteMaxerror: double, interlace: bool, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

GifsaveStream(Stream, double?, int?, int?, double?, bool?, double?, bool?, ForeignKeep?, double[], int?, string)

Save as gif.

Declaration

public void GifsaveStream(Stream stream, double? dither = null, int? effort = null, int? bitdepth = null, double? interframeMaxerror = null, bool? reuse = null, double? interpaletteMaxerror = null, bool? interlace = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
Stream	stream	Stream to save to.
double?	dither	Amount of dithering.
int?	effort	Quantisation effort.
int?	bitdepth	Number of bits per pixel.
double?	interframeMaxerror	Maximum inter-frame error for transparency.
bool?	reuse	Reuse palette from input.
double?	interpaletteMaxerror	Maximum inter-palette error for palette reusage.
bool?	interlace	Generate an interlaced (progressive) GIF.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.GifsaveStream(stream, dither: double, effort: int, bitdepth: int, interframeMaxerror: double, reuse: bool, interpaletteMaxerror: double, interlace: bool, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

GifsaveTarget(Target, double?, int?, int?, double?, bool?, double?, bool?, ForeignKeep?, double[], int?, string)

Save as gif.

Declaration

public void GifsaveTarget(Target target, double? dither = null, int? effort = null, int? bitdepth = null, double? interframeMaxerror = null, bool? reuse = null, double? interpaletteMaxerror = null, bool? interlace = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
Target	target	Target to save to.
double?	dither	Amount of dithering.
int?	effort	Quantisation effort.
int?	bitdepth	Number of bits per pixel.
double?	interframeMaxerror	Maximum inter-frame error for transparency.
bool?	reuse	Reuse palette from input.
double?	interpaletteMaxerror	Maximum inter-palette error for palette reusage.
bool?	interlace	Generate an interlaced (progressive) GIF.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.GifsaveTarget(target, dither: double, effort: int, bitdepth: int, interframeMaxerror: double, reuse: bool, interpaletteMaxerror: double, interlace: bool, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

Globalbalance(double?, bool?)

Global balance an image mosaic.

Declaration

public Image Globalbalance(double? gamma = null, bool? intOutput = null)

Parameters

Type	Name	Description
double?	gamma	Image gamma.
bool?	intOutput	Integer output.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Globalbalance(gamma: double, intOutput: bool);

Gravity(CompassDirection, int, int, Extend?, double[])

Place an image within a larger image with a certain gravity.

Declaration

public Image Gravity(Enums.CompassDirection direction, int width, int height, Enums.Extend? extend = null, double[] background = null)

Parameters

Type	Name	Description
Enums.CompassDirection	direction	Direction to place image within width/height.
int	width	Image width in pixels.
int	height	Image height in pixels.
Enums.Extend?	extend	How to generate the extra pixels.
double[]	background	Color for background pixels.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Gravity(direction, width, height, extend: Enums.Extend, background: double[]);

Grey(int, int, bool?)

Make a grey ramp image.

Declaration

public static Image Grey(int width, int height, bool? uchar = null)

Parameters

Type	Name	Description
int	width	Image width in pixels.
int	height	Image height in pixels.
bool?	uchar	Output an unsigned char image.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Grey(width, height, uchar: bool);

Grid(int, int, int)

Grid an image.

Declaration

public Image Grid(int tileHeight, int across, int down)

Parameters

Type	Name	Description
int	tileHeight	Chop into tiles this high.
int	across	Number of tiles across.
int	down	Number of tiles down.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Grid(tileHeight, across, down);

HSV2sRGB()

Transform HSV to sRGB.

Declaration

public Image HSV2sRGB()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.HSV2sRGB();

HasAlpha()

Does this image have an alpha channel?

Declaration

public bool HasAlpha()

Returns

Type	Description
bool	true if this image has an alpha channel; otherwise, false.

Remarks

Uses colour space interpretation with number of channels to guess this.

Heifload(string, out ForeignFlags, int?, int?, bool?, bool?, bool?, Access?, FailOn?, bool?)

Load a HEIF image.

Declaration

public static Image Heifload(string filename, out Enums.ForeignFlags flags, int? page = null, int? n = null, bool? thumbnail = null, bool? unlimited = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
Enums.ForeignFlags	flags	Flags for this file.
int?	page	First page to load.
int?	n	Number of pages to load, -1 for all.
bool?	thumbnail	Fetch thumbnail image.
bool?	unlimited	Remove all denial of service limits.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Heifload(filename, out var flags, page: int, n: int, thumbnail: bool, unlimited: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Heifload(string, int?, int?, bool?, bool?, bool?, Access?, FailOn?, bool?)

Load a HEIF image.

Declaration

public static Image Heifload(string filename, int? page = null, int? n = null, bool? thumbnail = null, bool? unlimited = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
int?	page	First page to load.
int?	n	Number of pages to load, -1 for all.
bool?	thumbnail	Fetch thumbnail image.
bool?	unlimited	Remove all denial of service limits.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Heifload(filename, page: int, n: int, thumbnail: bool, unlimited: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

HeifloadBuffer(byte[], out ForeignFlags, int?, int?, bool?, bool?, bool?, Access?, FailOn?, bool?)

Load a HEIF image.

Declaration

public static Image HeifloadBuffer(byte[] buffer, out Enums.ForeignFlags flags, int? page = null, int? n = null, bool? thumbnail = null, bool? unlimited = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
byte[]	buffer	Buffer to load from.
Enums.ForeignFlags	flags	Flags for this file.
int?	page	First page to load.
int?	n	Number of pages to load, -1 for all.
bool?	thumbnail	Fetch thumbnail image.
bool?	unlimited	Remove all denial of service limits.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.HeifloadBuffer(buffer, out var flags, page: int, n: int, thumbnail: bool, unlimited: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

HeifloadBuffer(byte[], int?, int?, bool?, bool?, bool?, Access?, FailOn?, bool?)

Load a HEIF image.

Declaration

public static Image HeifloadBuffer(byte[] buffer, int? page = null, int? n = null, bool? thumbnail = null, bool? unlimited = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
byte[]	buffer	Buffer to load from.
int?	page	First page to load.
int?	n	Number of pages to load, -1 for all.
bool?	thumbnail	Fetch thumbnail image.
bool?	unlimited	Remove all denial of service limits.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.HeifloadBuffer(buffer, page: int, n: int, thumbnail: bool, unlimited: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

HeifloadSource(Source, out ForeignFlags, int?, int?, bool?, bool?, bool?, Access?, FailOn?, bool?)

Load a HEIF image.

Declaration

public static Image HeifloadSource(Source source, out Enums.ForeignFlags flags, int? page = null, int? n = null, bool? thumbnail = null, bool? unlimited = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Source	source	Source to load from.
Enums.ForeignFlags	flags	Flags for this file.
int?	page	First page to load.
int?	n	Number of pages to load, -1 for all.
bool?	thumbnail	Fetch thumbnail image.
bool?	unlimited	Remove all denial of service limits.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.HeifloadSource(source, out var flags, page: int, n: int, thumbnail: bool, unlimited: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

HeifloadSource(Source, int?, int?, bool?, bool?, bool?, Access?, FailOn?, bool?)

Load a HEIF image.

Declaration

public static Image HeifloadSource(Source source, int? page = null, int? n = null, bool? thumbnail = null, bool? unlimited = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Source	source	Source to load from.
int?	page	First page to load.
int?	n	Number of pages to load, -1 for all.
bool?	thumbnail	Fetch thumbnail image.
bool?	unlimited	Remove all denial of service limits.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.HeifloadSource(source, page: int, n: int, thumbnail: bool, unlimited: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

HeifloadStream(Stream, out ForeignFlags, int?, int?, bool?, bool?, bool?, Access?, FailOn?, bool?)

Load a HEIF image.

Declaration

public static Image HeifloadStream(Stream stream, out Enums.ForeignFlags flags, int? page = null, int? n = null, bool? thumbnail = null, bool? unlimited = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Stream	stream	Stream to load from.
Enums.ForeignFlags	flags	Flags for this file.
int?	page	First page to load.
int?	n	Number of pages to load, -1 for all.
bool?	thumbnail	Fetch thumbnail image.
bool?	unlimited	Remove all denial of service limits.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.HeifloadStream(stream, out var flags, page: int, n: int, thumbnail: bool, unlimited: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

HeifloadStream(Stream, int?, int?, bool?, bool?, bool?, Access?, FailOn?, bool?)

Load a HEIF image.

Declaration

public static Image HeifloadStream(Stream stream, int? page = null, int? n = null, bool? thumbnail = null, bool? unlimited = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Stream	stream	Stream to load from.
int?	page	First page to load.
int?	n	Number of pages to load, -1 for all.
bool?	thumbnail	Fetch thumbnail image.
bool?	unlimited	Remove all denial of service limits.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.HeifloadStream(stream, page: int, n: int, thumbnail: bool, unlimited: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Heifsave(string, int?, int?, bool?, ForeignHeifCompression?, int?, ForeignSubsample?, ForeignHeifEncoder?, ForeignKeep?, double[], int?, string)

Save image in HEIF format.

Declaration

public void Heifsave(string filename, int? q = null, int? bitdepth = null, bool? lossless = null, Enums.ForeignHeifCompression? compression = null, int? effort = null, Enums.ForeignSubsample? subsampleMode = null, Enums.ForeignHeifEncoder? encoder = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
string	filename	Filename to save to.
int?	q	Q factor.
int?	bitdepth	Number of bits per pixel.
bool?	lossless	Enable lossless compression.
Enums.ForeignHeifCompression?	compression	Compression format.
int?	effort	CPU effort.
Enums.ForeignSubsample?	subsampleMode	Select chroma subsample operation mode.
Enums.ForeignHeifEncoder?	encoder	Select encoder to use.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.Heifsave(filename, q: int, bitdepth: int, lossless: bool, compression: Enums.ForeignHeifCompression, effort: int, subsampleMode: Enums.ForeignSubsample, encoder: Enums.ForeignHeifEncoder, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

HeifsaveBuffer(int?, int?, bool?, ForeignHeifCompression?, int?, ForeignSubsample?, ForeignHeifEncoder?, ForeignKeep?, double[], int?, string)

Save image in HEIF format.

Declaration

public byte[] HeifsaveBuffer(int? q = null, int? bitdepth = null, bool? lossless = null, Enums.ForeignHeifCompression? compression = null, int? effort = null, Enums.ForeignSubsample? subsampleMode = null, Enums.ForeignHeifEncoder? encoder = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
int?	q	Q factor.
int?	bitdepth	Number of bits per pixel.
bool?	lossless	Enable lossless compression.
Enums.ForeignHeifCompression?	compression	Compression format.
int?	effort	CPU effort.
Enums.ForeignSubsample?	subsampleMode	Select chroma subsample operation mode.
Enums.ForeignHeifEncoder?	encoder	Select encoder to use.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Returns

Type	Description
byte[]	An array of bytes.

Examples

byte[] buffer = in.HeifsaveBuffer(q: int, bitdepth: int, lossless: bool, compression: Enums.ForeignHeifCompression, effort: int, subsampleMode: Enums.ForeignSubsample, encoder: Enums.ForeignHeifEncoder, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

HeifsaveStream(Stream, int?, int?, bool?, ForeignHeifCompression?, int?, ForeignSubsample?, ForeignHeifEncoder?, ForeignKeep?, double[], int?, string)

Save image in HEIF format.

Declaration

public void HeifsaveStream(Stream stream, int? q = null, int? bitdepth = null, bool? lossless = null, Enums.ForeignHeifCompression? compression = null, int? effort = null, Enums.ForeignSubsample? subsampleMode = null, Enums.ForeignHeifEncoder? encoder = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
Stream	stream	Stream to save to.
int?	q	Q factor.
int?	bitdepth	Number of bits per pixel.
bool?	lossless	Enable lossless compression.
Enums.ForeignHeifCompression?	compression	Compression format.
int?	effort	CPU effort.
Enums.ForeignSubsample?	subsampleMode	Select chroma subsample operation mode.
Enums.ForeignHeifEncoder?	encoder	Select encoder to use.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.HeifsaveStream(stream, q: int, bitdepth: int, lossless: bool, compression: Enums.ForeignHeifCompression, effort: int, subsampleMode: Enums.ForeignSubsample, encoder: Enums.ForeignHeifEncoder, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

HeifsaveTarget(Target, int?, int?, bool?, ForeignHeifCompression?, int?, ForeignSubsample?, ForeignHeifEncoder?, ForeignKeep?, double[], int?, string)

Save image in HEIF format.

Declaration

public void HeifsaveTarget(Target target, int? q = null, int? bitdepth = null, bool? lossless = null, Enums.ForeignHeifCompression? compression = null, int? effort = null, Enums.ForeignSubsample? subsampleMode = null, Enums.ForeignHeifEncoder? encoder = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
Target	target	Target to save to.
int?	q	Q factor.
int?	bitdepth	Number of bits per pixel.
bool?	lossless	Enable lossless compression.
Enums.ForeignHeifCompression?	compression	Compression format.
int?	effort	CPU effort.
Enums.ForeignSubsample?	subsampleMode	Select chroma subsample operation mode.
Enums.ForeignHeifEncoder?	encoder	Select encoder to use.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.HeifsaveTarget(target, q: int, bitdepth: int, lossless: bool, compression: Enums.ForeignHeifCompression, effort: int, subsampleMode: Enums.ForeignSubsample, encoder: Enums.ForeignHeifEncoder, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

HistCum()

Form cumulative histogram.

Declaration

public Image HistCum()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.HistCum();

HistEntropy()

Estimate image entropy.

Declaration

public double HistEntropy()

Returns

Type	Description
double	A double.

Examples

double @out = in.HistEntropy();

HistEqual(int?)

Histogram equalisation.

Declaration

public Image HistEqual(int? band = null)

Parameters

Type	Name	Description
int?	band	Equalise with this band.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.HistEqual(band: int);

HistFind(int?)

Find image histogram.

Declaration

public Image HistFind(int? band = null)

Parameters

Type	Name	Description
int?	band	Find histogram of band.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.HistFind(band: int);

HistFindIndexed(Image, Combine?)

Find indexed image histogram.

Declaration

public Image HistFindIndexed(Image index, Enums.Combine? combine = null)

Parameters

Type	Name	Description
Image	index	Index image.
Enums.Combine?	combine	Combine bins like this.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.HistFindIndexed(index, combine: Enums.Combine);

HistFindNdim(int?)

Find n-dimensional image histogram.

Declaration

public Image HistFindNdim(int? bins = null)

Parameters

Type	Name	Description
int?	bins	Number of bins in each dimension.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.HistFindNdim(bins: int);

HistIsmonotonic()

Test for monotonicity.

Declaration

public bool HistIsmonotonic()

Returns

Type	Description
bool	A bool.

Examples

bool monotonic = in.HistIsmonotonic();

HistLocal(int, int, int?)

Local histogram equalisation.

Declaration

public Image HistLocal(int width, int height, int? maxSlope = null)

Parameters

Type	Name	Description
int	width	Window width in pixels.
int	height	Window height in pixels.
int?	maxSlope	Maximum slope (CLAHE).

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.HistLocal(width, height, maxSlope: int);

HistMatch(Image)

Match two histograms.

Declaration

public Image HistMatch(Image @ref)

Parameters

Type	Name	Description
Image	ref	Reference histogram.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.HistMatch(@ref);

HistNorm()

Normalise histogram.

Declaration

public Image HistNorm()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.HistNorm();

HistPlot()

Plot histogram.

Declaration

public Image HistPlot()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.HistPlot();

HoughCircle(int?, int?, int?)

Find hough circle transform.

Declaration

public Image HoughCircle(int? scale = null, int? minRadius = null, int? maxRadius = null)

Parameters

Type	Name	Description
int?	scale	Scale down dimensions by this factor.
int?	minRadius	Smallest radius to search for.
int?	maxRadius	Largest radius to search for.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.HoughCircle(scale: int, minRadius: int, maxRadius: int);

HoughLine(int?, int?)

Find hough line transform.

Declaration

public Image HoughLine(int? width = null, int? height = null)

Parameters

Type	Name	Description
int?	width	Horizontal size of parameter space.
int?	height	Vertical size of parameter space.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.HoughLine(width: int, height: int);

IccExport(PCS?, Intent?, bool?, string, int?)

Output to device with ICC profile.

Declaration

public Image IccExport(Enums.PCS? pcs = null, Enums.Intent? intent = null, bool? blackPointCompensation = null, string outputProfile = null, int? depth = null)

Parameters

Type	Name	Description
Enums.PCS?	pcs	Set Profile Connection Space.
Enums.Intent?	intent	Rendering intent.
bool?	blackPointCompensation	Enable black point compensation.
string	outputProfile	Filename to load output profile from.
int?	depth	Output device space depth in bits.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.IccExport(pcs: Enums.PCS, intent: Enums.Intent, blackPointCompensation: bool, outputProfile: string, depth: int);

IccImport(PCS?, Intent?, bool?, bool?, string)

Import from device with ICC profile.

Declaration

public Image IccImport(Enums.PCS? pcs = null, Enums.Intent? intent = null, bool? blackPointCompensation = null, bool? embedded = null, string inputProfile = null)

Parameters

Type	Name	Description
Enums.PCS?	pcs	Set Profile Connection Space.
Enums.Intent?	intent	Rendering intent.
bool?	blackPointCompensation	Enable black point compensation.
bool?	embedded	Use embedded input profile, if available.
string	inputProfile	Filename to load input profile from.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.IccImport(pcs: Enums.PCS, intent: Enums.Intent, blackPointCompensation: bool, embedded: bool, inputProfile: string);

IccTransform(string, PCS?, Intent?, bool?, bool?, string, int?)

Transform between devices with ICC profiles.

Declaration

public Image IccTransform(string outputProfile, Enums.PCS? pcs = null, Enums.Intent? intent = null, bool? blackPointCompensation = null, bool? embedded = null, string inputProfile = null, int? depth = null)

Parameters

Type	Name	Description
string	outputProfile	Filename to load output profile from.
Enums.PCS?	pcs	Set Profile Connection Space.
Enums.Intent?	intent	Rendering intent.
bool?	blackPointCompensation	Enable black point compensation.
bool?	embedded	Use embedded input profile, if available.
string	inputProfile	Filename to load input profile from.
int?	depth	Output device space depth in bits.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.IccTransform(outputProfile, pcs: Enums.PCS, intent: Enums.Intent, blackPointCompensation: bool, embedded: bool, inputProfile: string, depth: int);

Identity(int?, bool?, int?)

Make a 1D image where pixel values are indexes.

Declaration

public static Image Identity(int? bands = null, bool? @ushort = null, int? size = null)

Parameters

Type	Name	Description
int?	bands	Number of bands in LUT.
bool?	ushort	Create a 16-bit LUT.
int?	size	Size of 16-bit LUT.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Identity(bands: int, @ushort: bool, size: int);

Ifthenelse(object, object, bool?)

Ifthenelse an image.

Declaration

public Image Ifthenelse(object in1, object in2, bool? blend = null)

Parameters

Type	Name	Description
object	in1	Source for TRUE pixels.
object	in2	Source for FALSE pixels.
bool?	blend	Blend smoothly between then and else parts.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = cond.Ifthenelse(in1, in2, blend: bool);

Imag()

Return the imaginary part of a complex image.

Declaration

public Image Imag()

Returns

Type	Description
Image	A new Image.

Imageize(Image, object)

Turn a constant (eg. 1, "12", new[] {1, 2, 3}, new[] {new[] {1}}) into an image using matchImage as a guide.

Declaration

public static Image Imageize(Image matchImage, object value)

Parameters

Type	Name	Description
Image	matchImage	Image guide.
object	value	A constant.

Returns

Type	Description
Image	A new Image.

Insert(Image, int, int, bool?, double[])

Insert image @sub into @main at @x, @y.

Declaration

public Image Insert(Image sub, int x, int y, bool? expand = null, double[] background = null)

Parameters

Type	Name	Description
Image	sub	Sub-image to insert into main image.
int	x	Left edge of sub in main.
int	y	Top edge of sub in main.
bool?	expand	Expand output to hold all of both inputs.
double[]	background	Color for new pixels.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = main.Insert(sub, x, y, expand: bool, background: double[]);

Invalidate()

Drop caches on an image, and any downstream images.

Declaration

public void Invalidate()

Remarks

This method drops all pixel caches on an image and on all downstream images. Any operations which depend on this image, directly or indirectly, are also dropped from the libvips operation cache.

This method can be useful if you wrap a libvips image around an array with NewFromMemory(Array, int, int, int, BandFormat) and then change some bytes without libvips knowing.

Invert()

Invert an image.

Declaration

public Image Invert()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Invert();

Invertlut(int?)

Build an inverted look-up table.

Declaration

public Image Invertlut(int? size = null)

Parameters

Type	Name	Description
int?	size	LUT size to generate.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Invertlut(size: int);

Invfft(bool?)

Inverse FFT.

Declaration

public Image Invfft(bool? real = null)

Parameters

Type	Name	Description
bool?	real	Output only the real part of the transform.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Invfft(real: bool);

IsKilled()

If image has been killed (see SetKill(bool)), set an error message, clear the kill flag and return true. Otherwise return false.

Declaration

public bool IsKilled()

Returns

Type	Description
bool	true if image has been killed; otherwise, false.

Remarks

Handy for loops which need to run sets of threads which can fail. At least libvips 8.8 is needed. If this version requirement is not met, it will always return false.

Join(Image, Direction, bool?, int?, double[], Align?)

Join a pair of images.

Declaration

public Image Join(Image in2, Enums.Direction direction, bool? expand = null, int? shim = null, double[] background = null, Enums.Align? align = null)

Parameters

Type	Name	Description
Image	in2	Second input image.
Enums.Direction	direction	Join left-right or up-down.
bool?	expand	Expand output to hold all of both inputs.
int?	shim	Pixels between images.
double[]	background	Colour for new pixels.
Enums.Align?	align	Align on the low, centre or high coordinate edge.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in1.Join(in2, direction, expand: bool, shim: int, background: double[], align: Enums.Align);

Jp2kload(string, out ForeignFlags, int?, bool?, Access?, FailOn?, bool?)

Load JPEG2000 image.

Declaration

public static Image Jp2kload(string filename, out Enums.ForeignFlags flags, int? page = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
Enums.ForeignFlags	flags	Flags for this file.
int?	page	Load this page from the image.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Jp2kload(filename, out var flags, page: int, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Jp2kload(string, int?, bool?, Access?, FailOn?, bool?)

Load JPEG2000 image.

Declaration

public static Image Jp2kload(string filename, int? page = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
int?	page	Load this page from the image.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Jp2kload(filename, page: int, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Jp2kloadBuffer(byte[], out ForeignFlags, int?, bool?, Access?, FailOn?, bool?)

Load JPEG2000 image.

Declaration

public static Image Jp2kloadBuffer(byte[] buffer, out Enums.ForeignFlags flags, int? page = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
byte[]	buffer	Buffer to load from.
Enums.ForeignFlags	flags	Flags for this file.
int?	page	Load this page from the image.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Jp2kloadBuffer(buffer, out var flags, page: int, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Jp2kloadBuffer(byte[], int?, bool?, Access?, FailOn?, bool?)

Load JPEG2000 image.

Declaration

public static Image Jp2kloadBuffer(byte[] buffer, int? page = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
byte[]	buffer	Buffer to load from.
int?	page	Load this page from the image.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Jp2kloadBuffer(buffer, page: int, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Jp2kloadSource(Source, out ForeignFlags, int?, bool?, Access?, FailOn?, bool?)

Load JPEG2000 image.

Declaration

public static Image Jp2kloadSource(Source source, out Enums.ForeignFlags flags, int? page = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Source	source	Source to load from.
Enums.ForeignFlags	flags	Flags for this file.
int?	page	Load this page from the image.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Jp2kloadSource(source, out var flags, page: int, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Jp2kloadSource(Source, int?, bool?, Access?, FailOn?, bool?)

Load JPEG2000 image.

Declaration

public static Image Jp2kloadSource(Source source, int? page = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Source	source	Source to load from.
int?	page	Load this page from the image.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Jp2kloadSource(source, page: int, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Jp2kloadStream(Stream, out ForeignFlags, int?, bool?, Access?, FailOn?, bool?)

Load JPEG2000 image.

Declaration

public static Image Jp2kloadStream(Stream stream, out Enums.ForeignFlags flags, int? page = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Stream	stream	Stream to load from.
Enums.ForeignFlags	flags	Flags for this file.
int?	page	Load this page from the image.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Jp2kloadStream(stream, out var flags, page: int, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Jp2kloadStream(Stream, int?, bool?, Access?, FailOn?, bool?)

Load JPEG2000 image.

Declaration

public static Image Jp2kloadStream(Stream stream, int? page = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Stream	stream	Stream to load from.
int?	page	Load this page from the image.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Jp2kloadStream(stream, page: int, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Jp2ksave(string, int?, int?, bool?, int?, ForeignSubsample?, ForeignKeep?, double[], int?, string)

Save image in JPEG2000 format.

Declaration

public void Jp2ksave(string filename, int? tileWidth = null, int? tileHeight = null, bool? lossless = null, int? q = null, Enums.ForeignSubsample? subsampleMode = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
string	filename	Filename to save to.
int?	tileWidth	Tile width in pixels.
int?	tileHeight	Tile height in pixels.
bool?	lossless	Enable lossless compression.
int?	q	Q factor.
Enums.ForeignSubsample?	subsampleMode	Select chroma subsample operation mode.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.Jp2ksave(filename, tileWidth: int, tileHeight: int, lossless: bool, q: int, subsampleMode: Enums.ForeignSubsample, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

Jp2ksaveBuffer(int?, int?, bool?, int?, ForeignSubsample?, ForeignKeep?, double[], int?, string)

Save image in JPEG2000 format.

Declaration

public byte[] Jp2ksaveBuffer(int? tileWidth = null, int? tileHeight = null, bool? lossless = null, int? q = null, Enums.ForeignSubsample? subsampleMode = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
int?	tileWidth	Tile width in pixels.
int?	tileHeight	Tile height in pixels.
bool?	lossless	Enable lossless compression.
int?	q	Q factor.
Enums.ForeignSubsample?	subsampleMode	Select chroma subsample operation mode.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Returns

Type	Description
byte[]	An array of bytes.

Examples

byte[] buffer = in.Jp2ksaveBuffer(tileWidth: int, tileHeight: int, lossless: bool, q: int, subsampleMode: Enums.ForeignSubsample, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

Jp2ksaveStream(Stream, int?, int?, bool?, int?, ForeignSubsample?, ForeignKeep?, double[], int?, string)

Save image in JPEG2000 format.

Declaration

public void Jp2ksaveStream(Stream stream, int? tileWidth = null, int? tileHeight = null, bool? lossless = null, int? q = null, Enums.ForeignSubsample? subsampleMode = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
Stream	stream	Stream to save to.
int?	tileWidth	Tile width in pixels.
int?	tileHeight	Tile height in pixels.
bool?	lossless	Enable lossless compression.
int?	q	Q factor.
Enums.ForeignSubsample?	subsampleMode	Select chroma subsample operation mode.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.Jp2ksaveStream(stream, tileWidth: int, tileHeight: int, lossless: bool, q: int, subsampleMode: Enums.ForeignSubsample, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

Jp2ksaveTarget(Target, int?, int?, bool?, int?, ForeignSubsample?, ForeignKeep?, double[], int?, string)

Save image in JPEG2000 format.

Declaration

public void Jp2ksaveTarget(Target target, int? tileWidth = null, int? tileHeight = null, bool? lossless = null, int? q = null, Enums.ForeignSubsample? subsampleMode = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
Target	target	Target to save to.
int?	tileWidth	Tile width in pixels.
int?	tileHeight	Tile height in pixels.
bool?	lossless	Enable lossless compression.
int?	q	Q factor.
Enums.ForeignSubsample?	subsampleMode	Select chroma subsample operation mode.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.Jp2ksaveTarget(target, tileWidth: int, tileHeight: int, lossless: bool, q: int, subsampleMode: Enums.ForeignSubsample, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

Jpegload(string, out ForeignFlags, int?, bool?, bool?, bool?, Access?, FailOn?, bool?)

Load jpeg from file.

Declaration

public static Image Jpegload(string filename, out Enums.ForeignFlags flags, int? shrink = null, bool? autorotate = null, bool? unlimited = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
Enums.ForeignFlags	flags	Flags for this file.
int?	shrink	Shrink factor on load.
bool?	autorotate	Rotate image using exif orientation.
bool?	unlimited	Remove all denial of service limits.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Jpegload(filename, out var flags, shrink: int, autorotate: bool, unlimited: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Jpegload(string, int?, bool?, bool?, bool?, Access?, FailOn?, bool?)

Load jpeg from file.

Declaration

public static Image Jpegload(string filename, int? shrink = null, bool? autorotate = null, bool? unlimited = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
int?	shrink	Shrink factor on load.
bool?	autorotate	Rotate image using exif orientation.
bool?	unlimited	Remove all denial of service limits.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Jpegload(filename, shrink: int, autorotate: bool, unlimited: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

JpegloadBuffer(byte[], out ForeignFlags, int?, bool?, bool?, bool?, Access?, FailOn?, bool?)

Load jpeg from buffer.

Declaration

public static Image JpegloadBuffer(byte[] buffer, out Enums.ForeignFlags flags, int? shrink = null, bool? autorotate = null, bool? unlimited = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
byte[]	buffer	Buffer to load from.
Enums.ForeignFlags	flags	Flags for this file.
int?	shrink	Shrink factor on load.
bool?	autorotate	Rotate image using exif orientation.
bool?	unlimited	Remove all denial of service limits.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.JpegloadBuffer(buffer, out var flags, shrink: int, autorotate: bool, unlimited: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

JpegloadBuffer(byte[], int?, bool?, bool?, bool?, Access?, FailOn?, bool?)

Load jpeg from buffer.

Declaration

public static Image JpegloadBuffer(byte[] buffer, int? shrink = null, bool? autorotate = null, bool? unlimited = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
byte[]	buffer	Buffer to load from.
int?	shrink	Shrink factor on load.
bool?	autorotate	Rotate image using exif orientation.
bool?	unlimited	Remove all denial of service limits.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.JpegloadBuffer(buffer, shrink: int, autorotate: bool, unlimited: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

JpegloadSource(Source, out ForeignFlags, int?, bool?, bool?, bool?, Access?, FailOn?, bool?)

Load image from jpeg source.

Declaration

public static Image JpegloadSource(Source source, out Enums.ForeignFlags flags, int? shrink = null, bool? autorotate = null, bool? unlimited = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Source	source	Source to load from.
Enums.ForeignFlags	flags	Flags for this file.
int?	shrink	Shrink factor on load.
bool?	autorotate	Rotate image using exif orientation.
bool?	unlimited	Remove all denial of service limits.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.JpegloadSource(source, out var flags, shrink: int, autorotate: bool, unlimited: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

JpegloadSource(Source, int?, bool?, bool?, bool?, Access?, FailOn?, bool?)

Load image from jpeg source.

Declaration

public static Image JpegloadSource(Source source, int? shrink = null, bool? autorotate = null, bool? unlimited = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Source	source	Source to load from.
int?	shrink	Shrink factor on load.
bool?	autorotate	Rotate image using exif orientation.
bool?	unlimited	Remove all denial of service limits.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.JpegloadSource(source, shrink: int, autorotate: bool, unlimited: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

JpegloadStream(Stream, out ForeignFlags, int?, bool?, bool?, bool?, Access?, FailOn?, bool?)

Load image from jpeg stream.

Declaration

public static Image JpegloadStream(Stream stream, out Enums.ForeignFlags flags, int? shrink = null, bool? autorotate = null, bool? unlimited = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Stream	stream	Stream to load from.
Enums.ForeignFlags	flags	Flags for this file.
int?	shrink	Shrink factor on load.
bool?	autorotate	Rotate image using exif orientation.
bool?	unlimited	Remove all denial of service limits.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.JpegloadStream(stream, out var flags, shrink: int, autorotate: bool, unlimited: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

JpegloadStream(Stream, int?, bool?, bool?, bool?, Access?, FailOn?, bool?)

Load image from jpeg stream.

Declaration

public static Image JpegloadStream(Stream stream, int? shrink = null, bool? autorotate = null, bool? unlimited = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Stream	stream	Stream to load from.
int?	shrink	Shrink factor on load.
bool?	autorotate	Rotate image using exif orientation.
bool?	unlimited	Remove all denial of service limits.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.JpegloadStream(stream, shrink: int, autorotate: bool, unlimited: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Jpegsave(string, int?, bool?, bool?, bool?, bool?, bool?, int?, ForeignSubsample?, int?, ForeignKeep?, double[], int?, string)

Save image to jpeg file.

Declaration

public void Jpegsave(string filename, int? q = null, bool? optimizeCoding = null, bool? interlace = null, bool? trellisQuant = null, bool? overshootDeringing = null, bool? optimizeScans = null, int? quantTable = null, Enums.ForeignSubsample? subsampleMode = null, int? restartInterval = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
string	filename	Filename to save to.
int?	q	Q factor.
bool?	optimizeCoding	Compute optimal Huffman coding tables.
bool?	interlace	Generate an interlaced (progressive) jpeg.
bool?	trellisQuant	Apply trellis quantisation to each 8x8 block.
bool?	overshootDeringing	Apply overshooting to samples with extreme values.
bool?	optimizeScans	Split spectrum of DCT coefficients into separate scans.
int?	quantTable	Use predefined quantization table with given index.
Enums.ForeignSubsample?	subsampleMode	Select chroma subsample operation mode.
int?	restartInterval	Add restart markers every specified number of mcu.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.Jpegsave(filename, q: int, optimizeCoding: bool, interlace: bool, trellisQuant: bool, overshootDeringing: bool, optimizeScans: bool, quantTable: int, subsampleMode: Enums.ForeignSubsample, restartInterval: int, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

JpegsaveBuffer(int?, bool?, bool?, bool?, bool?, bool?, int?, ForeignSubsample?, int?, ForeignKeep?, double[], int?, string)

Save image to jpeg buffer.

Declaration

public byte[] JpegsaveBuffer(int? q = null, bool? optimizeCoding = null, bool? interlace = null, bool? trellisQuant = null, bool? overshootDeringing = null, bool? optimizeScans = null, int? quantTable = null, Enums.ForeignSubsample? subsampleMode = null, int? restartInterval = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
int?	q	Q factor.
bool?	optimizeCoding	Compute optimal Huffman coding tables.
bool?	interlace	Generate an interlaced (progressive) jpeg.
bool?	trellisQuant	Apply trellis quantisation to each 8x8 block.
bool?	overshootDeringing	Apply overshooting to samples with extreme values.
bool?	optimizeScans	Split spectrum of DCT coefficients into separate scans.
int?	quantTable	Use predefined quantization table with given index.
Enums.ForeignSubsample?	subsampleMode	Select chroma subsample operation mode.
int?	restartInterval	Add restart markers every specified number of mcu.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Returns

Type	Description
byte[]	An array of bytes.

Examples

byte[] buffer = in.JpegsaveBuffer(q: int, optimizeCoding: bool, interlace: bool, trellisQuant: bool, overshootDeringing: bool, optimizeScans: bool, quantTable: int, subsampleMode: Enums.ForeignSubsample, restartInterval: int, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

JpegsaveMime(int?, bool?, bool?, bool?, bool?, bool?, int?, ForeignSubsample?, int?, ForeignKeep?, double[], int?, string)

Save image to jpeg mime.

Declaration

public void JpegsaveMime(int? q = null, bool? optimizeCoding = null, bool? interlace = null, bool? trellisQuant = null, bool? overshootDeringing = null, bool? optimizeScans = null, int? quantTable = null, Enums.ForeignSubsample? subsampleMode = null, int? restartInterval = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
int?	q	Q factor.
bool?	optimizeCoding	Compute optimal Huffman coding tables.
bool?	interlace	Generate an interlaced (progressive) jpeg.
bool?	trellisQuant	Apply trellis quantisation to each 8x8 block.
bool?	overshootDeringing	Apply overshooting to samples with extreme values.
bool?	optimizeScans	Split spectrum of DCT coefficients into separate scans.
int?	quantTable	Use predefined quantization table with given index.
Enums.ForeignSubsample?	subsampleMode	Select chroma subsample operation mode.
int?	restartInterval	Add restart markers every specified number of mcu.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.JpegsaveMime(q: int, optimizeCoding: bool, interlace: bool, trellisQuant: bool, overshootDeringing: bool, optimizeScans: bool, quantTable: int, subsampleMode: Enums.ForeignSubsample, restartInterval: int, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

JpegsaveStream(Stream, int?, bool?, bool?, bool?, bool?, bool?, int?, ForeignSubsample?, int?, ForeignKeep?, double[], int?, string)

Save image to jpeg stream.

Declaration

public void JpegsaveStream(Stream stream, int? q = null, bool? optimizeCoding = null, bool? interlace = null, bool? trellisQuant = null, bool? overshootDeringing = null, bool? optimizeScans = null, int? quantTable = null, Enums.ForeignSubsample? subsampleMode = null, int? restartInterval = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
Stream	stream	Stream to save to.
int?	q	Q factor.
bool?	optimizeCoding	Compute optimal Huffman coding tables.
bool?	interlace	Generate an interlaced (progressive) jpeg.
bool?	trellisQuant	Apply trellis quantisation to each 8x8 block.
bool?	overshootDeringing	Apply overshooting to samples with extreme values.
bool?	optimizeScans	Split spectrum of DCT coefficients into separate scans.
int?	quantTable	Use predefined quantization table with given index.
Enums.ForeignSubsample?	subsampleMode	Select chroma subsample operation mode.
int?	restartInterval	Add restart markers every specified number of mcu.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.JpegsaveStream(stream, q: int, optimizeCoding: bool, interlace: bool, trellisQuant: bool, overshootDeringing: bool, optimizeScans: bool, quantTable: int, subsampleMode: Enums.ForeignSubsample, restartInterval: int, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

JpegsaveTarget(Target, int?, bool?, bool?, bool?, bool?, bool?, int?, ForeignSubsample?, int?, ForeignKeep?, double[], int?, string)

Save image to jpeg target.

Declaration

public void JpegsaveTarget(Target target, int? q = null, bool? optimizeCoding = null, bool? interlace = null, bool? trellisQuant = null, bool? overshootDeringing = null, bool? optimizeScans = null, int? quantTable = null, Enums.ForeignSubsample? subsampleMode = null, int? restartInterval = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
Target	target	Target to save to.
int?	q	Q factor.
bool?	optimizeCoding	Compute optimal Huffman coding tables.
bool?	interlace	Generate an interlaced (progressive) jpeg.
bool?	trellisQuant	Apply trellis quantisation to each 8x8 block.
bool?	overshootDeringing	Apply overshooting to samples with extreme values.
bool?	optimizeScans	Split spectrum of DCT coefficients into separate scans.
int?	quantTable	Use predefined quantization table with given index.
Enums.ForeignSubsample?	subsampleMode	Select chroma subsample operation mode.
int?	restartInterval	Add restart markers every specified number of mcu.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.JpegsaveTarget(target, q: int, optimizeCoding: bool, interlace: bool, trellisQuant: bool, overshootDeringing: bool, optimizeScans: bool, quantTable: int, subsampleMode: Enums.ForeignSubsample, restartInterval: int, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

Jxlload(string, out ForeignFlags, int?, int?, bool?, Access?, FailOn?, bool?)

Load JPEG-XL image.

Declaration

public static Image Jxlload(string filename, out Enums.ForeignFlags flags, int? page = null, int? n = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
Enums.ForeignFlags	flags	Flags for this file.
int?	page	First page to load.
int?	n	Number of pages to load, -1 for all.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Jxlload(filename, out var flags, page: int, n: int, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Jxlload(string, int?, int?, bool?, Access?, FailOn?, bool?)

Load JPEG-XL image.

Declaration

public static Image Jxlload(string filename, int? page = null, int? n = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
int?	page	First page to load.
int?	n	Number of pages to load, -1 for all.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Jxlload(filename, page: int, n: int, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

JxlloadBuffer(byte[], out ForeignFlags, int?, int?, bool?, Access?, FailOn?, bool?)

Load JPEG-XL image.

Declaration

public static Image JxlloadBuffer(byte[] buffer, out Enums.ForeignFlags flags, int? page = null, int? n = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
byte[]	buffer	Buffer to load from.
Enums.ForeignFlags	flags	Flags for this file.
int?	page	First page to load.
int?	n	Number of pages to load, -1 for all.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.JxlloadBuffer(buffer, out var flags, page: int, n: int, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

JxlloadBuffer(byte[], int?, int?, bool?, Access?, FailOn?, bool?)

Load JPEG-XL image.

Declaration

public static Image JxlloadBuffer(byte[] buffer, int? page = null, int? n = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
byte[]	buffer	Buffer to load from.
int?	page	First page to load.
int?	n	Number of pages to load, -1 for all.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.JxlloadBuffer(buffer, page: int, n: int, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

JxlloadSource(Source, out ForeignFlags, int?, int?, bool?, Access?, FailOn?, bool?)

Load JPEG-XL image.

Declaration

public static Image JxlloadSource(Source source, out Enums.ForeignFlags flags, int? page = null, int? n = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Source	source	Source to load from.
Enums.ForeignFlags	flags	Flags for this file.
int?	page	First page to load.
int?	n	Number of pages to load, -1 for all.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.JxlloadSource(source, out var flags, page: int, n: int, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

JxlloadSource(Source, int?, int?, bool?, Access?, FailOn?, bool?)

Load JPEG-XL image.

Declaration

public static Image JxlloadSource(Source source, int? page = null, int? n = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Source	source	Source to load from.
int?	page	First page to load.
int?	n	Number of pages to load, -1 for all.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.JxlloadSource(source, page: int, n: int, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

JxlloadStream(Stream, out ForeignFlags, int?, int?, bool?, Access?, FailOn?, bool?)

Load JPEG-XL image.

Declaration

public static Image JxlloadStream(Stream stream, out Enums.ForeignFlags flags, int? page = null, int? n = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Stream	stream	Stream to load from.
Enums.ForeignFlags	flags	Flags for this file.
int?	page	First page to load.
int?	n	Number of pages to load, -1 for all.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.JxlloadStream(stream, out var flags, page: int, n: int, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

JxlloadStream(Stream, int?, int?, bool?, Access?, FailOn?, bool?)

Load JPEG-XL image.

Declaration

public static Image JxlloadStream(Stream stream, int? page = null, int? n = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Stream	stream	Stream to load from.
int?	page	First page to load.
int?	n	Number of pages to load, -1 for all.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.JxlloadStream(stream, page: int, n: int, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Jxlsave(string, int?, double?, int?, bool?, int?, ForeignKeep?, double[], int?, string)

Save image in JPEG-XL format.

Declaration

public void Jxlsave(string filename, int? tier = null, double? distance = null, int? effort = null, bool? lossless = null, int? q = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
string	filename	Filename to save to.
int?	tier	Decode speed tier.
double?	distance	Target butteraugli distance.
int?	effort	Encoding effort.
bool?	lossless	Enable lossless compression.
int?	q	Quality factor.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.Jxlsave(filename, tier: int, distance: double, effort: int, lossless: bool, q: int, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

JxlsaveBuffer(int?, double?, int?, bool?, int?, ForeignKeep?, double[], int?, string)

Save image in JPEG-XL format.

Declaration

public byte[] JxlsaveBuffer(int? tier = null, double? distance = null, int? effort = null, bool? lossless = null, int? q = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
int?	tier	Decode speed tier.
double?	distance	Target butteraugli distance.
int?	effort	Encoding effort.
bool?	lossless	Enable lossless compression.
int?	q	Quality factor.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Returns

Type	Description
byte[]	An array of bytes.

Examples

byte[] buffer = in.JxlsaveBuffer(tier: int, distance: double, effort: int, lossless: bool, q: int, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

JxlsaveStream(Stream, int?, double?, int?, bool?, int?, ForeignKeep?, double[], int?, string)

Save image in JPEG-XL format.

Declaration

public void JxlsaveStream(Stream stream, int? tier = null, double? distance = null, int? effort = null, bool? lossless = null, int? q = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
Stream	stream	Stream to save to.
int?	tier	Decode speed tier.
double?	distance	Target butteraugli distance.
int?	effort	Encoding effort.
bool?	lossless	Enable lossless compression.
int?	q	Quality factor.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.JxlsaveStream(stream, tier: int, distance: double, effort: int, lossless: bool, q: int, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

JxlsaveTarget(Target, int?, double?, int?, bool?, int?, ForeignKeep?, double[], int?, string)

Save image in JPEG-XL format.

Declaration

public void JxlsaveTarget(Target target, int? tier = null, double? distance = null, int? effort = null, bool? lossless = null, int? q = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
Target	target	Target to save to.
int?	tier	Decode speed tier.
double?	distance	Target butteraugli distance.
int?	effort	Encoding effort.
bool?	lossless	Enable lossless compression.
int?	q	Quality factor.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.JxlsaveTarget(target, tier: int, distance: double, effort: int, lossless: bool, q: int, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

LCh2CMC()

Transform LCh to CMC.

Declaration

public Image LCh2CMC()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.LCh2CMC();

LCh2Lab()

Transform LCh to Lab.

Declaration

public Image LCh2Lab()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.LCh2Lab();

Lab2LCh()

Transform Lab to LCh.

Declaration

public Image Lab2LCh()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Lab2LCh();

Lab2LabQ()

Transform float Lab to LabQ coding.

Declaration

public Image Lab2LabQ()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Lab2LabQ();

Lab2LabS()

Transform float Lab to signed short.

Declaration

public Image Lab2LabS()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Lab2LabS();

Lab2XYZ(double[])

Transform CIELAB to XYZ.

Declaration

public Image Lab2XYZ(double[] temp = null)

Parameters

Type	Name	Description
double[]	temp	Color temperature.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Lab2XYZ(temp: double[]);

LabQ2Lab()

Unpack a LabQ image to float Lab.

Declaration

public Image LabQ2Lab()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.LabQ2Lab();

LabQ2LabS()

Unpack a LabQ image to short Lab.

Declaration

public Image LabQ2LabS()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.LabQ2LabS();

LabQ2sRGB()

Convert a LabQ image to sRGB.

Declaration

public Image LabQ2sRGB()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.LabQ2sRGB();

LabS2Lab()

Transform signed short Lab to float.

Declaration

public Image LabS2Lab()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.LabS2Lab();

LabS2LabQ()

Transform short Lab to LabQ coding.

Declaration

public Image LabS2LabQ()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.LabS2LabQ();

Labelregions()

Label regions in an image.

Declaration

public Image Labelregions()

Returns

Type	Description
Image	A new Image.

Examples

using Image mask = in.Labelregions();

Labelregions(out int)

Label regions in an image.

Declaration

public Image Labelregions(out int segments)

Parameters

Type	Name	Description
int	segments	Number of discrete contiguous regions.

Returns

Type	Description
Image	A new Image.

Examples

using Image mask = in.Labelregions(out var segments);

Linear(double[], double[], bool?)

Calculate (a * in + b).

Declaration

public Image Linear(double[] a, double[] b, bool? uchar = null)

Parameters

Type	Name	Description
double[]	a	Multiply by this.
double[]	b	Add this.
bool?	uchar	Output should be uchar.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Linear(a, b, uchar: bool);

Linecache(int?, Access?, bool?, bool?)

Cache an image as a set of lines.

Declaration

public Image Linecache(int? tileHeight = null, Enums.Access? access = null, bool? threaded = null, bool? persistent = null)

Parameters

Type	Name	Description
int?	tileHeight	Tile height in pixels.
Enums.Access?	access	Expected access pattern.
bool?	threaded	Allow threaded access.
bool?	persistent	Keep cache between evaluations.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Linecache(tileHeight: int, access: Enums.Access, threaded: bool, persistent: bool);

Log()

Return the natural log of an image.

Declaration

public Image Log()

Returns

Type	Description
Image	A new Image.

Log10()

Return the log base 10 of an image.

Declaration

public Image Log10()

Returns

Type	Description
Image	A new Image.

Logmat(double, double, bool?, Precision?)

Make a Laplacian of Gaussian image.

Declaration

public static Image Logmat(double sigma, double minAmpl, bool? separable = null, Enums.Precision? precision = null)

Parameters

Type	Name	Description
double	sigma	Radius of Gaussian.
double	minAmpl	Minimum amplitude of Gaussian.
bool?	separable	Generate separable Gaussian.
Enums.Precision?	precision	Generate with this precision.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Logmat(sigma, minAmpl, separable: bool, precision: Enums.Precision);

Magickload(string, out ForeignFlags, string, int?, int?, bool?, Access?, FailOn?, bool?)

Load file with ImageMagick.

Declaration

public static Image Magickload(string filename, out Enums.ForeignFlags flags, string density = null, int? page = null, int? n = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
Enums.ForeignFlags	flags	Flags for this file.
string	density	Canvas resolution for rendering vector formats like SVG.
int?	page	First page to load.
int?	n	Number of pages to load, -1 for all.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Magickload(filename, out var flags, density: string, page: int, n: int, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Magickload(string, string, int?, int?, bool?, Access?, FailOn?, bool?)

Load file with ImageMagick.

Declaration

public static Image Magickload(string filename, string density = null, int? page = null, int? n = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
string	density	Canvas resolution for rendering vector formats like SVG.
int?	page	First page to load.
int?	n	Number of pages to load, -1 for all.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Magickload(filename, density: string, page: int, n: int, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

MagickloadBuffer(byte[], out ForeignFlags, string, int?, int?, bool?, Access?, FailOn?, bool?)

Load buffer with ImageMagick.

Declaration

public static Image MagickloadBuffer(byte[] buffer, out Enums.ForeignFlags flags, string density = null, int? page = null, int? n = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
byte[]	buffer	Buffer to load from.
Enums.ForeignFlags	flags	Flags for this file.
string	density	Canvas resolution for rendering vector formats like SVG.
int?	page	First page to load.
int?	n	Number of pages to load, -1 for all.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.MagickloadBuffer(buffer, out var flags, density: string, page: int, n: int, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

MagickloadBuffer(byte[], string, int?, int?, bool?, Access?, FailOn?, bool?)

Load buffer with ImageMagick.

Declaration

public static Image MagickloadBuffer(byte[] buffer, string density = null, int? page = null, int? n = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
byte[]	buffer	Buffer to load from.
string	density	Canvas resolution for rendering vector formats like SVG.
int?	page	First page to load.
int?	n	Number of pages to load, -1 for all.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.MagickloadBuffer(buffer, density: string, page: int, n: int, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Magicksave(string, string, int?, bool?, bool?, int?, ForeignKeep?, double[], int?, string)

Save file with ImageMagick.

Declaration

public void Magicksave(string filename, string format = null, int? quality = null, bool? optimizeGifFrames = null, bool? optimizeGifTransparency = null, int? bitdepth = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
string	filename	Filename to save to.
string	format	Format to save in.
int?	quality	Quality to use.
bool?	optimizeGifFrames	Apply GIF frames optimization.
bool?	optimizeGifTransparency	Apply GIF transparency optimization.
int?	bitdepth	Number of bits per pixel.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.Magicksave(filename, format: string, quality: int, optimizeGifFrames: bool, optimizeGifTransparency: bool, bitdepth: int, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

MagicksaveBuffer(string, int?, bool?, bool?, int?, ForeignKeep?, double[], int?, string)

Save image to magick buffer.

Declaration

public byte[] MagicksaveBuffer(string format = null, int? quality = null, bool? optimizeGifFrames = null, bool? optimizeGifTransparency = null, int? bitdepth = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
string	format	Format to save in.
int?	quality	Quality to use.
bool?	optimizeGifFrames	Apply GIF frames optimization.
bool?	optimizeGifTransparency	Apply GIF transparency optimization.
int?	bitdepth	Number of bits per pixel.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Returns

Type	Description
byte[]	An array of bytes.

Examples

byte[] buffer = in.MagicksaveBuffer(format: string, quality: int, optimizeGifFrames: bool, optimizeGifTransparency: bool, bitdepth: int, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

Mapim(Image, GObject, double[], bool?, Extend?)

Resample with a map image.

Declaration

public Image Mapim(Image index, GObject interpolate = null, double[] background = null, bool? premultiplied = null, Enums.Extend? extend = null)

Parameters

Type	Name	Description
Image	index	Index pixels with this.
GObject	interpolate	Interpolate pixels with this.
double[]	background	Background value.
bool?	premultiplied	Images have premultiplied alpha.
Enums.Extend?	extend	How to generate the extra pixels.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Mapim(index, interpolate: GObject, background: double[], premultiplied: bool, extend: Enums.Extend);

Maplut(Image, int?)

Map an image though a lut.

Declaration

public Image Maplut(Image lut, int? band = null)

Parameters

Type	Name	Description
Image	lut	Look-up table image.
int?	band	Apply one-band lut to this band of in.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Maplut(lut, band: int);

MaskButterworth(int, int, double, double, double, bool?, bool?, bool?, bool?)

Make a butterworth filter.

Declaration

public static Image MaskButterworth(int width, int height, double order, double frequencyCutoff, double amplitudeCutoff, bool? uchar = null, bool? nodc = null, bool? reject = null, bool? optical = null)

Parameters

Type	Name	Description
int	width	Image width in pixels.
int	height	Image height in pixels.
double	order	Filter order.
double	frequencyCutoff	Frequency cutoff.
double	amplitudeCutoff	Amplitude cutoff.
bool?	uchar	Output an unsigned char image.
bool?	nodc	Remove DC component.
bool?	reject	Invert the sense of the filter.
bool?	optical	Rotate quadrants to optical space.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.MaskButterworth(width, height, order, frequencyCutoff, amplitudeCutoff, uchar: bool, nodc: bool, reject: bool, optical: bool);

MaskButterworthBand(int, int, double, double, double, double, double, bool?, bool?, bool?, bool?)

Make a butterworth_band filter.

Declaration

public static Image MaskButterworthBand(int width, int height, double order, double frequencyCutoffX, double frequencyCutoffY, double radius, double amplitudeCutoff, bool? uchar = null, bool? nodc = null, bool? reject = null, bool? optical = null)

Parameters

Type	Name	Description
int	width	Image width in pixels.
int	height	Image height in pixels.
double	order	Filter order.
double	frequencyCutoffX	Frequency cutoff x.
double	frequencyCutoffY	Frequency cutoff y.
double	radius	Radius of circle.
double	amplitudeCutoff	Amplitude cutoff.
bool?	uchar	Output an unsigned char image.
bool?	nodc	Remove DC component.
bool?	reject	Invert the sense of the filter.
bool?	optical	Rotate quadrants to optical space.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.MaskButterworthBand(width, height, order, frequencyCutoffX, frequencyCutoffY, radius, amplitudeCutoff, uchar: bool, nodc: bool, reject: bool, optical: bool);

MaskButterworthRing(int, int, double, double, double, double, bool?, bool?, bool?, bool?)

Make a butterworth ring filter.

Declaration

public static Image MaskButterworthRing(int width, int height, double order, double frequencyCutoff, double amplitudeCutoff, double ringwidth, bool? uchar = null, bool? nodc = null, bool? reject = null, bool? optical = null)

Parameters

Type	Name	Description
int	width	Image width in pixels.
int	height	Image height in pixels.
double	order	Filter order.
double	frequencyCutoff	Frequency cutoff.
double	amplitudeCutoff	Amplitude cutoff.
double	ringwidth	Ringwidth.
bool?	uchar	Output an unsigned char image.
bool?	nodc	Remove DC component.
bool?	reject	Invert the sense of the filter.
bool?	optical	Rotate quadrants to optical space.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.MaskButterworthRing(width, height, order, frequencyCutoff, amplitudeCutoff, ringwidth, uchar: bool, nodc: bool, reject: bool, optical: bool);

MaskFractal(int, int, double, bool?, bool?, bool?, bool?)

Make fractal filter.

Declaration

public static Image MaskFractal(int width, int height, double fractalDimension, bool? uchar = null, bool? nodc = null, bool? reject = null, bool? optical = null)

Parameters

Type	Name	Description
int	width	Image width in pixels.
int	height	Image height in pixels.
double	fractalDimension	Fractal dimension.
bool?	uchar	Output an unsigned char image.
bool?	nodc	Remove DC component.
bool?	reject	Invert the sense of the filter.
bool?	optical	Rotate quadrants to optical space.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.MaskFractal(width, height, fractalDimension, uchar: bool, nodc: bool, reject: bool, optical: bool);

MaskGaussian(int, int, double, double, bool?, bool?, bool?, bool?)

Make a gaussian filter.

Declaration

public static Image MaskGaussian(int width, int height, double frequencyCutoff, double amplitudeCutoff, bool? uchar = null, bool? nodc = null, bool? reject = null, bool? optical = null)

Parameters

Type	Name	Description
int	width	Image width in pixels.
int	height	Image height in pixels.
double	frequencyCutoff	Frequency cutoff.
double	amplitudeCutoff	Amplitude cutoff.
bool?	uchar	Output an unsigned char image.
bool?	nodc	Remove DC component.
bool?	reject	Invert the sense of the filter.
bool?	optical	Rotate quadrants to optical space.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.MaskGaussian(width, height, frequencyCutoff, amplitudeCutoff, uchar: bool, nodc: bool, reject: bool, optical: bool);

MaskGaussianBand(int, int, double, double, double, double, bool?, bool?, bool?, bool?)

Make a gaussian filter.

Declaration

public static Image MaskGaussianBand(int width, int height, double frequencyCutoffX, double frequencyCutoffY, double radius, double amplitudeCutoff, bool? uchar = null, bool? nodc = null, bool? reject = null, bool? optical = null)

Parameters

Type	Name	Description
int	width	Image width in pixels.
int	height	Image height in pixels.
double	frequencyCutoffX	Frequency cutoff x.
double	frequencyCutoffY	Frequency cutoff y.
double	radius	Radius of circle.
double	amplitudeCutoff	Amplitude cutoff.
bool?	uchar	Output an unsigned char image.
bool?	nodc	Remove DC component.
bool?	reject	Invert the sense of the filter.
bool?	optical	Rotate quadrants to optical space.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.MaskGaussianBand(width, height, frequencyCutoffX, frequencyCutoffY, radius, amplitudeCutoff, uchar: bool, nodc: bool, reject: bool, optical: bool);

MaskGaussianRing(int, int, double, double, double, bool?, bool?, bool?, bool?)

Make a gaussian ring filter.

Declaration

public static Image MaskGaussianRing(int width, int height, double frequencyCutoff, double amplitudeCutoff, double ringwidth, bool? uchar = null, bool? nodc = null, bool? reject = null, bool? optical = null)

Parameters

Type	Name	Description
int	width	Image width in pixels.
int	height	Image height in pixels.
double	frequencyCutoff	Frequency cutoff.
double	amplitudeCutoff	Amplitude cutoff.
double	ringwidth	Ringwidth.
bool?	uchar	Output an unsigned char image.
bool?	nodc	Remove DC component.
bool?	reject	Invert the sense of the filter.
bool?	optical	Rotate quadrants to optical space.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.MaskGaussianRing(width, height, frequencyCutoff, amplitudeCutoff, ringwidth, uchar: bool, nodc: bool, reject: bool, optical: bool);

MaskIdeal(int, int, double, bool?, bool?, bool?, bool?)

Make an ideal filter.

Declaration

public static Image MaskIdeal(int width, int height, double frequencyCutoff, bool? uchar = null, bool? nodc = null, bool? reject = null, bool? optical = null)

Parameters

Type	Name	Description
int	width	Image width in pixels.
int	height	Image height in pixels.
double	frequencyCutoff	Frequency cutoff.
bool?	uchar	Output an unsigned char image.
bool?	nodc	Remove DC component.
bool?	reject	Invert the sense of the filter.
bool?	optical	Rotate quadrants to optical space.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.MaskIdeal(width, height, frequencyCutoff, uchar: bool, nodc: bool, reject: bool, optical: bool);

MaskIdealBand(int, int, double, double, double, bool?, bool?, bool?, bool?)

Make an ideal band filter.

Declaration

public static Image MaskIdealBand(int width, int height, double frequencyCutoffX, double frequencyCutoffY, double radius, bool? uchar = null, bool? nodc = null, bool? reject = null, bool? optical = null)

Parameters

Type	Name	Description
int	width	Image width in pixels.
int	height	Image height in pixels.
double	frequencyCutoffX	Frequency cutoff x.
double	frequencyCutoffY	Frequency cutoff y.
double	radius	Radius of circle.
bool?	uchar	Output an unsigned char image.
bool?	nodc	Remove DC component.
bool?	reject	Invert the sense of the filter.
bool?	optical	Rotate quadrants to optical space.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.MaskIdealBand(width, height, frequencyCutoffX, frequencyCutoffY, radius, uchar: bool, nodc: bool, reject: bool, optical: bool);

MaskIdealRing(int, int, double, double, bool?, bool?, bool?, bool?)

Make an ideal ring filter.

Declaration

public static Image MaskIdealRing(int width, int height, double frequencyCutoff, double ringwidth, bool? uchar = null, bool? nodc = null, bool? reject = null, bool? optical = null)

Parameters

Type	Name	Description
int	width	Image width in pixels.
int	height	Image height in pixels.
double	frequencyCutoff	Frequency cutoff.
double	ringwidth	Ringwidth.
bool?	uchar	Output an unsigned char image.
bool?	nodc	Remove DC component.
bool?	reject	Invert the sense of the filter.
bool?	optical	Rotate quadrants to optical space.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.MaskIdealRing(width, height, frequencyCutoff, ringwidth, uchar: bool, nodc: bool, reject: bool, optical: bool);

Match(Image, int, int, int, int, int, int, int, int, int?, int?, bool?, GObject)

First-order match of two images.

Declaration

public Image Match(Image sec, int xr1, int yr1, int xs1, int ys1, int xr2, int yr2, int xs2, int ys2, int? hwindow = null, int? harea = null, bool? search = null, GObject interpolate = null)

Parameters

Type	Name	Description
Image	sec	Secondary image.
int	xr1	Position of first reference tie-point.
int	yr1	Position of first reference tie-point.
int	xs1	Position of first secondary tie-point.
int	ys1	Position of first secondary tie-point.
int	xr2	Position of second reference tie-point.
int	yr2	Position of second reference tie-point.
int	xs2	Position of second secondary tie-point.
int	ys2	Position of second secondary tie-point.
int?	hwindow	Half window size.
int?	harea	Half area size.
bool?	search	Search to improve tie-points.
GObject	interpolate	Interpolate pixels with this.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = ref.Match(sec, xr1, yr1, xs1, ys1, xr2, yr2, xs2, ys2, hwindow: int, harea: int, search: bool, interpolate: GObject);

Math(OperationMath)

Apply a math operation to an image.

Declaration

public Image Math(Enums.OperationMath math)

Parameters

Type	Name	Description
Enums.OperationMath	math	Math to perform.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Math(math);

Math2(Image, OperationMath2)

Binary math operations.

Declaration

public Image Math2(Image right, Enums.OperationMath2 math2)

Parameters

Type	Name	Description
Image	right	Right-hand image argument.
Enums.OperationMath2	math2	Math to perform.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = left.Math2(right, math2);

Math2Const(OperationMath2, double[])

Binary math operations with a constant.

Declaration

public Image Math2Const(Enums.OperationMath2 math2, double[] c)

Parameters

Type	Name	Description
Enums.OperationMath2	math2	Math to perform.
double[]	c	Array of constants.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Math2Const(math2, c);

Matload(string, out ForeignFlags, bool?, Access?, FailOn?, bool?)

Load mat from file.

Declaration

public static Image Matload(string filename, out Enums.ForeignFlags flags, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
Enums.ForeignFlags	flags	Flags for this file.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Matload(filename, out var flags, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Matload(string, bool?, Access?, FailOn?, bool?)

Load mat from file.

Declaration

public static Image Matload(string filename, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Matload(filename, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Matrixinvert()

Invert an matrix.

Declaration

public Image Matrixinvert()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Matrixinvert();

Matrixload(string, out ForeignFlags, bool?, Access?, FailOn?, bool?)

Load matrix.

Declaration

public static Image Matrixload(string filename, out Enums.ForeignFlags flags, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
Enums.ForeignFlags	flags	Flags for this file.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Matrixload(filename, out var flags, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Matrixload(string, bool?, Access?, FailOn?, bool?)

Load matrix.

Declaration

public static Image Matrixload(string filename, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Matrixload(filename, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

MatrixloadSource(Source, out ForeignFlags, bool?, Access?, FailOn?, bool?)

Load matrix.

Declaration

public static Image MatrixloadSource(Source source, out Enums.ForeignFlags flags, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Source	source	Source to load from.
Enums.ForeignFlags	flags	Flags for this file.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.MatrixloadSource(source, out var flags, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

MatrixloadSource(Source, bool?, Access?, FailOn?, bool?)

Load matrix.

Declaration

public static Image MatrixloadSource(Source source, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Source	source	Source to load from.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.MatrixloadSource(source, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

MatrixloadStream(Stream, out ForeignFlags, bool?, Access?, FailOn?, bool?)

Load matrix.

Declaration

public static Image MatrixloadStream(Stream stream, out Enums.ForeignFlags flags, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Stream	stream	Stream to load from.
Enums.ForeignFlags	flags	Flags for this file.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.MatrixloadStream(stream, out var flags, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

MatrixloadStream(Stream, bool?, Access?, FailOn?, bool?)

Load matrix.

Declaration

public static Image MatrixloadStream(Stream stream, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Stream	stream	Stream to load from.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.MatrixloadStream(stream, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Matrixprint(ForeignKeep?, double[], int?, string)

Print matrix.

Declaration

public void Matrixprint(Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.Matrixprint(keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

Matrixsave(string, ForeignKeep?, double[], int?, string)

Save image to matrix.

Declaration

public void Matrixsave(string filename, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
string	filename	Filename to save to.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.Matrixsave(filename, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

MatrixsaveStream(Stream, ForeignKeep?, double[], int?, string)

Save image to matrix.

Declaration

public void MatrixsaveStream(Stream stream, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
Stream	stream	Stream to save to.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.MatrixsaveStream(stream, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

MatrixsaveTarget(Target, ForeignKeep?, double[], int?, string)

Save image to matrix.

Declaration

public void MatrixsaveTarget(Target target, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
Target	target	Target to save to.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.MatrixsaveTarget(target, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

Max(out int, out int, out double[], out int[], out int[], int?)

Find image maximum.

Declaration

public double Max(out int x, out int y, out double[] outArray, out int[] xArray, out int[] yArray, int? size = null)

Parameters

Type	Name	Description
int	x	Horizontal position of maximum.
int	y	Vertical position of maximum.
double[]	outArray	Array of output values.
int[]	xArray	Array of horizontal positions.
int[]	yArray	Array of vertical positions.
int?	size	Number of maximum values to find.

Returns

Type	Description
double	A double.

Examples

double @out = in.Max(out var x, out var y, out var outArray, out var xArray, out var yArray, size: int);

Max(out int, out int, out double[], out int[], int?)

Find image maximum.

Declaration

public double Max(out int x, out int y, out double[] outArray, out int[] xArray, int? size = null)

Parameters

Type	Name	Description
int	x	Horizontal position of maximum.
int	y	Vertical position of maximum.
double[]	outArray	Array of output values.
int[]	xArray	Array of horizontal positions.
int?	size	Number of maximum values to find.

Returns

Type	Description
double	A double.

Examples

double @out = in.Max(out var x, out var y, out var outArray, out var xArray, size: int);

Max(out int, out int, out double[], int?)

Find image maximum.

Declaration

public double Max(out int x, out int y, out double[] outArray, int? size = null)

Parameters

Type	Name	Description
int	x	Horizontal position of maximum.
int	y	Vertical position of maximum.
double[]	outArray	Array of output values.
int?	size	Number of maximum values to find.

Returns

Type	Description
double	A double.

Examples

double @out = in.Max(out var x, out var y, out var outArray, size: int);

Max(out int, out int, int?)

Find image maximum.

Declaration

public double Max(out int x, out int y, int? size = null)

Parameters

Type	Name	Description
int	x	Horizontal position of maximum.
int	y	Vertical position of maximum.
int?	size	Number of maximum values to find.

Returns

Type	Description
double	A double.

Examples

double @out = in.Max(out var x, out var y, size: int);

Max(out int, int?)

Find image maximum.

Declaration

public double Max(out int x, int? size = null)

Parameters

Type	Name	Description
int	x	Horizontal position of maximum.
int?	size	Number of maximum values to find.

Returns

Type	Description
double	A double.

Examples

double @out = in.Max(out var x, size: int);

Max(int?)

Find image maximum.

Declaration

public double Max(int? size = null)

Parameters

Type	Name	Description
int?	size	Number of maximum values to find.

Returns

Type	Description
double	A double.

Examples

double @out = in.Max(size: int);

MaxPos()

Return the coordinates of the image maximum.

Declaration

public double[] MaxPos()

Returns

Type	Description
double[]	An array of doubles.

Maxpair(Image)

Maximum of a pair of images.

Declaration

public Image Maxpair(Image right)

Parameters

Type	Name	Description
Image	right	Right-hand image argument.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = left.Maxpair(right);

Measure(int, int, int?, int?, int?, int?)

Measure a set of patches on a color chart.

Declaration

public Image Measure(int h, int v, int? left = null, int? top = null, int? width = null, int? height = null)

Parameters

Type	Name	Description
int	h	Number of patches across chart.
int	v	Number of patches down chart.
int?	left	Left edge of extract area.
int?	top	Top edge of extract area.
int?	width	Width of extract area.
int?	height	Height of extract area.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Measure(h, v, left: int, top: int, width: int, height: int);

Median(int)

size x size median filter.

Declaration

public Image Median(int size)

Parameters

Type	Name	Description
int	size	The median filter.

Returns

Type	Description
Image	A new Image.

Merge(Image, Direction, int, int, int?)

Merge two images.

Declaration

public Image Merge(Image sec, Enums.Direction direction, int dx, int dy, int? mblend = null)

Parameters

Type	Name	Description
Image	sec	Secondary image.
Enums.Direction	direction	Horizontal or vertical merge.
int	dx	Horizontal displacement from sec to ref.
int	dy	Vertical displacement from sec to ref.
int?	mblend	Maximum blend size.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = ref.Merge(sec, direction, dx, dy, mblend: int);

Min(out int, out int, out double[], out int[], out int[], int?)

Find image minimum.

Declaration

public double Min(out int x, out int y, out double[] outArray, out int[] xArray, out int[] yArray, int? size = null)

Parameters

Type	Name	Description
int	x	Horizontal position of minimum.
int	y	Vertical position of minimum.
double[]	outArray	Array of output values.
int[]	xArray	Array of horizontal positions.
int[]	yArray	Array of vertical positions.
int?	size	Number of minimum values to find.

Returns

Type	Description
double	A double.

Examples

double @out = in.Min(out var x, out var y, out var outArray, out var xArray, out var yArray, size: int);

Min(out int, out int, out double[], out int[], int?)

Find image minimum.

Declaration

public double Min(out int x, out int y, out double[] outArray, out int[] xArray, int? size = null)

Parameters

Type	Name	Description
int	x	Horizontal position of minimum.
int	y	Vertical position of minimum.
double[]	outArray	Array of output values.
int[]	xArray	Array of horizontal positions.
int?	size	Number of minimum values to find.

Returns

Type	Description
double	A double.

Examples

double @out = in.Min(out var x, out var y, out var outArray, out var xArray, size: int);

Min(out int, out int, out double[], int?)

Find image minimum.

Declaration

public double Min(out int x, out int y, out double[] outArray, int? size = null)

Parameters

Type	Name	Description
int	x	Horizontal position of minimum.
int	y	Vertical position of minimum.
double[]	outArray	Array of output values.
int?	size	Number of minimum values to find.

Returns

Type	Description
double	A double.

Examples

double @out = in.Min(out var x, out var y, out var outArray, size: int);

Min(out int, out int, int?)

Find image minimum.

Declaration

public double Min(out int x, out int y, int? size = null)

Parameters

Type	Name	Description
int	x	Horizontal position of minimum.
int	y	Vertical position of minimum.
int?	size	Number of minimum values to find.

Returns

Type	Description
double	A double.

Examples

double @out = in.Min(out var x, out var y, size: int);

Min(out int, int?)

Find image minimum.

Declaration

public double Min(out int x, int? size = null)

Parameters

Type	Name	Description
int	x	Horizontal position of minimum.
int?	size	Number of minimum values to find.

Returns

Type	Description
double	A double.

Examples

double @out = in.Min(out var x, size: int);

Min(int?)

Find image minimum.

Declaration

public double Min(int? size = null)

Parameters

Type	Name	Description
int?	size	Number of minimum values to find.

Returns

Type	Description
double	A double.

Examples

double @out = in.Min(size: int);

MinPos()

Return the coordinates of the image minimum.

Declaration

public double[] MinPos()

Returns

Type	Description
double[]	An array of doubles.

Minpair(Image)

Minimum of a pair of images.

Declaration

public Image Minpair(Image right)

Parameters

Type	Name	Description
Image	right	Right-hand image argument.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = left.Minpair(right);

Morph(Image, OperationMorphology)

Morphology operation.

Declaration

public Image Morph(Image mask, Enums.OperationMorphology morph)

Parameters

Type	Name	Description
Image	mask	Input matrix image.
Enums.OperationMorphology	morph	Morphological operation to perform.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Morph(mask, morph);

Mosaic(Image, Direction, int, int, int, int, out int, out int, out double, out double, out double, out double, int?, int?, int?, int?)

Mosaic two images.

Declaration

public Image Mosaic(Image sec, Enums.Direction direction, int xref, int yref, int xsec, int ysec, out int dx0, out int dy0, out double scale1, out double angle1, out double dy1, out double dx1, int? hwindow = null, int? harea = null, int? mblend = null, int? bandno = null)

Parameters

Type	Name	Description
Image	sec	Secondary image.
Enums.Direction	direction	Horizontal or vertical mosaic.
int	xref	Position of reference tie-point.
int	yref	Position of reference tie-point.
int	xsec	Position of secondary tie-point.
int	ysec	Position of secondary tie-point.
int	dx0	Detected integer offset.
int	dy0	Detected integer offset.
double	scale1	Detected scale.
double	angle1	Detected rotation.
double	dy1	Detected first-order displacement.
double	dx1	Detected first-order displacement.
int?	hwindow	Half window size.
int?	harea	Half area size.
int?	mblend	Maximum blend size.
int?	bandno	Band to search for features on.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = ref.Mosaic(sec, direction, xref, yref, xsec, ysec, out var dx0, out var dy0, out var scale1, out var angle1, out var dy1, out var dx1, hwindow: int, harea: int, mblend: int, bandno: int);

Mosaic(Image, Direction, int, int, int, int, out int, out int, out double, out double, out double, int?, int?, int?, int?)

Mosaic two images.

Declaration

public Image Mosaic(Image sec, Enums.Direction direction, int xref, int yref, int xsec, int ysec, out int dx0, out int dy0, out double scale1, out double angle1, out double dy1, int? hwindow = null, int? harea = null, int? mblend = null, int? bandno = null)

Parameters

Type	Name	Description
Image	sec	Secondary image.
Enums.Direction	direction	Horizontal or vertical mosaic.
int	xref	Position of reference tie-point.
int	yref	Position of reference tie-point.
int	xsec	Position of secondary tie-point.
int	ysec	Position of secondary tie-point.
int	dx0	Detected integer offset.
int	dy0	Detected integer offset.
double	scale1	Detected scale.
double	angle1	Detected rotation.
double	dy1	Detected first-order displacement.
int?	hwindow	Half window size.
int?	harea	Half area size.
int?	mblend	Maximum blend size.
int?	bandno	Band to search for features on.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = ref.Mosaic(sec, direction, xref, yref, xsec, ysec, out var dx0, out var dy0, out var scale1, out var angle1, out var dy1, hwindow: int, harea: int, mblend: int, bandno: int);

Mosaic(Image, Direction, int, int, int, int, out int, out int, out double, out double, int?, int?, int?, int?)

Mosaic two images.

Declaration

public Image Mosaic(Image sec, Enums.Direction direction, int xref, int yref, int xsec, int ysec, out int dx0, out int dy0, out double scale1, out double angle1, int? hwindow = null, int? harea = null, int? mblend = null, int? bandno = null)

Parameters

Type	Name	Description
Image	sec	Secondary image.
Enums.Direction	direction	Horizontal or vertical mosaic.
int	xref	Position of reference tie-point.
int	yref	Position of reference tie-point.
int	xsec	Position of secondary tie-point.
int	ysec	Position of secondary tie-point.
int	dx0	Detected integer offset.
int	dy0	Detected integer offset.
double	scale1	Detected scale.
double	angle1	Detected rotation.
int?	hwindow	Half window size.
int?	harea	Half area size.
int?	mblend	Maximum blend size.
int?	bandno	Band to search for features on.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = ref.Mosaic(sec, direction, xref, yref, xsec, ysec, out var dx0, out var dy0, out var scale1, out var angle1, hwindow: int, harea: int, mblend: int, bandno: int);

Mosaic(Image, Direction, int, int, int, int, out int, out int, out double, int?, int?, int?, int?)

Mosaic two images.

Declaration

public Image Mosaic(Image sec, Enums.Direction direction, int xref, int yref, int xsec, int ysec, out int dx0, out int dy0, out double scale1, int? hwindow = null, int? harea = null, int? mblend = null, int? bandno = null)

Parameters

Type	Name	Description
Image	sec	Secondary image.
Enums.Direction	direction	Horizontal or vertical mosaic.
int	xref	Position of reference tie-point.
int	yref	Position of reference tie-point.
int	xsec	Position of secondary tie-point.
int	ysec	Position of secondary tie-point.
int	dx0	Detected integer offset.
int	dy0	Detected integer offset.
double	scale1	Detected scale.
int?	hwindow	Half window size.
int?	harea	Half area size.
int?	mblend	Maximum blend size.
int?	bandno	Band to search for features on.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = ref.Mosaic(sec, direction, xref, yref, xsec, ysec, out var dx0, out var dy0, out var scale1, hwindow: int, harea: int, mblend: int, bandno: int);

Mosaic(Image, Direction, int, int, int, int, out int, out int, int?, int?, int?, int?)

Mosaic two images.

Declaration

public Image Mosaic(Image sec, Enums.Direction direction, int xref, int yref, int xsec, int ysec, out int dx0, out int dy0, int? hwindow = null, int? harea = null, int? mblend = null, int? bandno = null)

Parameters

Type	Name	Description
Image	sec	Secondary image.
Enums.Direction	direction	Horizontal or vertical mosaic.
int	xref	Position of reference tie-point.
int	yref	Position of reference tie-point.
int	xsec	Position of secondary tie-point.
int	ysec	Position of secondary tie-point.
int	dx0	Detected integer offset.
int	dy0	Detected integer offset.
int?	hwindow	Half window size.
int?	harea	Half area size.
int?	mblend	Maximum blend size.
int?	bandno	Band to search for features on.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = ref.Mosaic(sec, direction, xref, yref, xsec, ysec, out var dx0, out var dy0, hwindow: int, harea: int, mblend: int, bandno: int);

Mosaic(Image, Direction, int, int, int, int, out int, int?, int?, int?, int?)

Mosaic two images.

Declaration

public Image Mosaic(Image sec, Enums.Direction direction, int xref, int yref, int xsec, int ysec, out int dx0, int? hwindow = null, int? harea = null, int? mblend = null, int? bandno = null)

Parameters

Type	Name	Description
Image	sec	Secondary image.
Enums.Direction	direction	Horizontal or vertical mosaic.
int	xref	Position of reference tie-point.
int	yref	Position of reference tie-point.
int	xsec	Position of secondary tie-point.
int	ysec	Position of secondary tie-point.
int	dx0	Detected integer offset.
int?	hwindow	Half window size.
int?	harea	Half area size.
int?	mblend	Maximum blend size.
int?	bandno	Band to search for features on.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = ref.Mosaic(sec, direction, xref, yref, xsec, ysec, out var dx0, hwindow: int, harea: int, mblend: int, bandno: int);

Mosaic(Image, Direction, int, int, int, int, int?, int?, int?, int?)

Mosaic two images.

Declaration

public Image Mosaic(Image sec, Enums.Direction direction, int xref, int yref, int xsec, int ysec, int? hwindow = null, int? harea = null, int? mblend = null, int? bandno = null)

Parameters

Type	Name	Description
Image	sec	Secondary image.
Enums.Direction	direction	Horizontal or vertical mosaic.
int	xref	Position of reference tie-point.
int	yref	Position of reference tie-point.
int	xsec	Position of secondary tie-point.
int	ysec	Position of secondary tie-point.
int?	hwindow	Half window size.
int?	harea	Half area size.
int?	mblend	Maximum blend size.
int?	bandno	Band to search for features on.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = ref.Mosaic(sec, direction, xref, yref, xsec, ysec, hwindow: int, harea: int, mblend: int, bandno: int);

Mosaic1(Image, Direction, int, int, int, int, int, int, int, int, int?, int?, bool?, GObject, int?)

First-order mosaic of two images.

Declaration

public Image Mosaic1(Image sec, Enums.Direction direction, int xr1, int yr1, int xs1, int ys1, int xr2, int yr2, int xs2, int ys2, int? hwindow = null, int? harea = null, bool? search = null, GObject interpolate = null, int? mblend = null)

Parameters

Type	Name	Description
Image	sec	Secondary image.
Enums.Direction	direction	Horizontal or vertical mosaic.
int	xr1	Position of first reference tie-point.
int	yr1	Position of first reference tie-point.
int	xs1	Position of first secondary tie-point.
int	ys1	Position of first secondary tie-point.
int	xr2	Position of second reference tie-point.
int	yr2	Position of second reference tie-point.
int	xs2	Position of second secondary tie-point.
int	ys2	Position of second secondary tie-point.
int?	hwindow	Half window size.
int?	harea	Half area size.
bool?	search	Search to improve tie-points.
GObject	interpolate	Interpolate pixels with this.
int?	mblend	Maximum blend size.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = ref.Mosaic1(sec, direction, xr1, yr1, xs1, ys1, xr2, yr2, xs2, ys2, hwindow: int, harea: int, search: bool, interpolate: GObject, mblend: int);

Msb(int?)

Pick most-significant byte from an image.

Declaration

public Image Msb(int? band = null)

Parameters

Type	Name	Description
int?	band	Band to msb.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Msb(band: int);

Multiply(Image)

Multiply two images.

Declaration

public Image Multiply(Image right)

Parameters

Type	Name	Description
Image	right	Right-hand image argument.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = left.Multiply(right);

Mutate(Action<MutableImage>)

Mutate an image with a delegate. Inside the delegate, you can call methods which modify the image, such as setting or removing metadata, or modifying pixels.

Declaration

public virtual Image Mutate(Action<MutableImage> action)

Parameters

Type	Name	Description
Action<MutableImage>	action

Returns

Type	Description
Image	A new Image.

Examples

using var mutated = image.Mutate(mutable =>
{
    for (var i = 0; i <= 100; i++)
    {
        var j = i / 100.0;
        mutable.DrawLine(new[] { 255.0 }, (int)(mutable.Width * j), 0, 0, (int)(mutable.Height * (1 - j)));
    }
});

NewFromArray<T>(T[,], double, double)

Create an image from a 2D array.

Declaration

public static Image NewFromArray<T>(T[,] array, double scale = 1, double offset = 0) where T : struct, IEquatable<T>

Parameters

Type	Name	Description
T[,]	array	Create the image from these values.
double	scale	Default to 1.0. What to divide each pixel by after convolution. Useful for integer convolution masks.
double	offset	Default to 0.0. What to subtract from each pixel after convolution. Useful for integer convolution masks.

Returns

Type	Description
Image	A new Image.

Type Parameters

Name	Description
T

Remarks

A new one-band image with Double pixels is created from the array. These images are useful with the libvips convolution operator Conv(Image, Precision?, int?, int?).

Exceptions

Type	Condition
VipsException	If unable to make image from array.

NewFromArray<T>(T[], double, double)

Create an image from a 1D array.

Declaration

public static Image NewFromArray<T>(T[] array, double scale = 1, double offset = 0) where T : struct, IEquatable<T>

Parameters

Type	Name	Description
T[]	array	Create the image from these values. 1D arrays become a single row of pixels.
double	scale	Default to 1.0. What to divide each pixel by after convolution. Useful for integer convolution masks.
double	offset	Default to 0.0. What to subtract from each pixel after convolution. Useful for integer convolution masks.

Returns

Type	Description
Image	A new Image.

Type Parameters

Name	Description
T

Remarks

A new one-band image with Double pixels is created from the array. These images are useful with the libvips convolution operator Conv(Image, Precision?, int?, int?).

Exceptions

Type	Condition
VipsException	If unable to make image from array.

NewFromArray<T>(T[][], double, double)

Create an image from a 2D array.

Declaration

public static Image NewFromArray<T>(T[][] array, double scale = 1, double offset = 0) where T : struct, IEquatable<T>

Parameters

Type	Name	Description
T[][]	array	Create the image from these values.
double	scale	Default to 1.0. What to divide each pixel by after convolution. Useful for integer convolution masks.
double	offset	Default to 0.0. What to subtract from each pixel after convolution. Useful for integer convolution masks.

Returns

Type	Description
Image	A new Image.

Type Parameters

Name	Description
T

Remarks

A new one-band image with Double pixels is created from the array. These images are useful with the libvips convolution operator Conv(Image, Precision?, int?, int?).

Exceptions

Type	Condition
VipsException	If unable to make image from array.

NewFromBuffer(byte[], string, Access?, FailOn?, VOption)

Load a formatted image from memory.

Declaration

public static Image NewFromBuffer(byte[] data, string strOptions = "", Enums.Access? access = null, Enums.FailOn? failOn = null, VOption kwargs = null)

Parameters

Type	Name	Description
byte[]	data	The memory object to load the image from.
string	strOptions	Load options as a string. Use Empty for no options.
Enums.Access?	access	Hint the expected access pattern for the image.
Enums.FailOn?	failOn	The type of error that will cause load to fail. By default, loaders are permissive, that is, None.
VOption	kwargs	Optional options that depend on the load operation.

Returns

Type	Description
Image	A new Image.

Remarks

This behaves exactly as NewFromFile(string, bool?, Access?, FailOn?, VOption), but the image is loaded from the memory object rather than from a file. The memory object can be a string or buffer.

Exceptions

Type	Condition
VipsException	If unable to load from data.

NewFromBuffer(char[], string, Access?, FailOn?, VOption)

Load a formatted image from memory.

Declaration

public static Image NewFromBuffer(char[] data, string strOptions = "", Enums.Access? access = null, Enums.FailOn? failOn = null, VOption kwargs = null)

Parameters

Type	Name	Description
char[]	data	The memory object to load the image from.
string	strOptions	Load options as a string. Use Empty for no options.
Enums.Access?	access	Hint the expected access pattern for the image.
Enums.FailOn?	failOn	The type of error that will cause load to fail. By default, loaders are permissive, that is, None.
VOption	kwargs	Optional options that depend on the load operation.

Returns

Type	Description
Image	A new Image.

Remarks

This behaves exactly as NewFromFile(string, bool?, Access?, FailOn?, VOption), but the image is loaded from the memory object rather than from a file. The memory object can be a string or buffer.

Exceptions

Type	Condition
VipsException	If unable to load from data.

NewFromBuffer(ReadOnlySpan<byte>, string, Access?, FailOn?, VOption)

Load a formatted image from memory.

Declaration

public static Image NewFromBuffer(ReadOnlySpan<byte> data, string strOptions = "", Enums.Access? access = null, Enums.FailOn? failOn = null, VOption kwargs = null)

Parameters

Type	Name	Description
ReadOnlySpan<byte>	data	The memory object to load the image from.
string	strOptions	Load options as a string. Use Empty for no options.
Enums.Access?	access	Hint the expected access pattern for the image.
Enums.FailOn?	failOn	The type of error that will cause load to fail. By default, loaders are permissive, that is, None.
VOption	kwargs	Optional options that depend on the load operation.

Returns

Type	Description
Image	A new Image.

Remarks

This behaves exactly as NewFromFile(string, bool?, Access?, FailOn?, VOption), but the image is loaded from the memory object rather than from a file. The memory object can be a string or buffer.

Exceptions

Type	Condition
VipsException	If unable to load from data.

NewFromBuffer(string, string, Access?, FailOn?, VOption)

Load a formatted image from memory.

Declaration

public static Image NewFromBuffer(string data, string strOptions = "", Enums.Access? access = null, Enums.FailOn? failOn = null, VOption kwargs = null)

Parameters

Type	Name	Description
string	data	The memory object to load the image from.
string	strOptions	Load options as a string. Use Empty for no options.
Enums.Access?	access	Hint the expected access pattern for the image.
Enums.FailOn?	failOn	The type of error that will cause load to fail. By default, loaders are permissive, that is, None.
VOption	kwargs	Optional options that depend on the load operation.

Returns

Type	Description
Image	A new Image.

Remarks

This behaves exactly as NewFromFile(string, bool?, Access?, FailOn?, VOption), but the image is loaded from the memory object rather than from a file. The memory object can be a string or buffer.

Exceptions

Type	Condition
VipsException	If unable to load from data.

NewFromFile(string, bool?, Access?, FailOn?, VOption)

Load an image from a file.

Declaration

public static Image NewFromFile(string vipsFilename, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, VOption kwargs = null)

Parameters

Type	Name	Description
string	vipsFilename	The disc file to load the image from, with optional appended arguments.
bool?	memory	If set to true, load the image via memory rather than via a temporary disc file. See NewTempFile(string) for notes on where temporary files are created. Small images are loaded via memory by default, use VIPS_DISC_THRESHOLD to set the definition of small.
Enums.Access?	access	Hint the expected access pattern for the image.
Enums.FailOn?	failOn	The type of error that will cause load to fail. By default, loaders are permissive, that is, None.
VOption	kwargs	Optional options that depend on the load operation.

Returns

Type	Description
Image	A new Image.

Remarks

This method can load images in any format supported by vips. The filename can include load options, for example:

using var image = Image.NewFromFile("fred.jpg[shrink=2]");

You can also supply options as keyword arguments, for example:

using var image = Image.NewFromFile("fred.jpg", new VOption
{
    {"shrink", 2}
});

The full set of options available depend upon the load operation that will be executed. Try something like:

$ vips jpegload

at the command-line to see a summary of the available options for the JPEG loader.

Loading is fast: only enough of the image is loaded to be able to fill out the header. Pixels will only be decompressed when they are needed.

Exceptions

Type	Condition
VipsException	If unable to load from vipsFilename.

NewFromImage(Image)

Make a new image from an existing one.

Declaration

public Image NewFromImage(Image value)

Parameters

Type	Name	Description
Image	value	The value for the pixels. Use a single number to make a one-band image; use an array constant to make a many-band image.

Returns

Type	Description
Image	A new Image.

Remarks

A new image is created which has the same size, format, interpretation and resolution as this, but with every pixel set to value.

NewFromImage(params double[])

Make a new image from an existing one.

Declaration

public Image NewFromImage(params double[] doubles)

Parameters

Type	Name	Description
double[]	doubles	The value for the pixels. Use a single number to make a one-band image; use an array constant to make a many-band image.

Returns

Type	Description
Image	A new Image.

Remarks

A new image is created which has the same size, format, interpretation and resolution as this, but with every pixel set to value.

NewFromImage(params int[])

Make a new image from an existing one.

Declaration

public Image NewFromImage(params int[] ints)

Parameters

Type	Name	Description
int[]	ints	The value for the pixels. Use a single number to make a one-band image; use an array constant to make a many-band image.

Returns

Type	Description
Image	A new Image.

Remarks

A new image is created which has the same size, format, interpretation and resolution as this, but with every pixel set to value.

NewFromMemory(Array, int, int, int, BandFormat)

Wrap an image around a memory array.

Declaration

public static Image NewFromMemory(Array data, int width, int height, int bands, Enums.BandFormat format)

Parameters

Type	Name	Description
Array	data	A memory object.
int	width	Image width in pixels.
int	height	Image height in pixels.
int	bands	Number of bands.
Enums.BandFormat	format	Band format.

Returns

Type	Description
Image	A new Image.

Remarks

Wraps an image around a C-style memory array. For example, if the data memory array contains four bytes with the values 1, 2, 3, 4, you can make a one-band, 2x2 uchar image from it like this:

using var image = Image.NewFromMemory(data, 2, 2, 1, Enums.BandFormat.Uchar);

A reference is kept to the data object, so it will not be garbage-collected until the returned image is garbage-collected.

This method is useful for efficiently transferring images from GDI+ into libvips.

See WriteToMemory() for the opposite operation.

Use Copy(int?, int?, int?, BandFormat?, Coding?, Interpretation?, double?, double?, int?, int?) to set other image attributes.

Exceptions

Type	Condition
VipsException	If unable to make image from data.

NewFromMemory(nint, ulong, int, int, int, BandFormat)

Wrap an image around a memory area.

Declaration

public static Image NewFromMemory(nint data, ulong size, int width, int height, int bands, Enums.BandFormat format)

Parameters

Type	Name	Description
nint	data	A unmanaged block of memory.
ulong	size	Length of memory.
int	width	Image width in pixels.
int	height	Image height in pixels.
int	bands	Number of bands.
Enums.BandFormat	format	Band format.

Returns

Type	Description
Image	A new Image.

Remarks

Because libvips is "borrowing" data from the caller, this function is extremely dangerous. Unless you are very careful, you will get crashes or memory corruption. Use NewFromMemoryCopy(nint, ulong, int, int, int, BandFormat) instead if you are at all unsure.

Exceptions

Type	Condition
VipsException	If unable to make image from data.

NewFromMemoryCopy(nint, ulong, int, int, int, BandFormat)

Like NewFromMemory(nint, ulong, int, int, int, BandFormat), but libvips will make a copy of the memory area. This means more memory use and an extra copy operation, but is much simpler and safer.

Declaration

public static Image NewFromMemoryCopy(nint data, ulong size, int width, int height, int bands, Enums.BandFormat format)

Parameters

Type	Name	Description
nint	data	A unmanaged block of memory.
ulong	size	Length of memory.
int	width	Image width in pixels.
int	height	Image height in pixels.
int	bands	Number of bands.
Enums.BandFormat	format	Band format.

Returns

Type	Description
Image	A new Image.

Exceptions

Type	Condition
VipsException	If unable to make image from data.

NewFromMemoryCopy<T>(ReadOnlySpan<T>, int, int, int, BandFormat)

Like NewFromMemory<T>(ReadOnlyMemory<T>, int, int, int, BandFormat), but for ReadOnlySpan<T>, so we must copy as it could be allocated on the stack.

Declaration

public static Image NewFromMemoryCopy<T>(ReadOnlySpan<T> data, int width, int height, int bands, Enums.BandFormat format) where T : unmanaged

Parameters

Type	Name	Description
ReadOnlySpan<T>	data	A ReadOnlySpan<T>.
int	width	Image width in pixels.
int	height	Image height in pixels.
int	bands	Number of bands.
Enums.BandFormat	format	Band format.

Returns

Type	Description
Image	A new Image.

Type Parameters

Name	Description
T

Exceptions

Type	Condition
VipsException	If unable to make image from data.

NewFromMemory<T>(ReadOnlyMemory<T>, int, int, int, BandFormat)

Wrap an image around a memory array.

Declaration

public static Image NewFromMemory<T>(ReadOnlyMemory<T> data, int width, int height, int bands, Enums.BandFormat format) where T : unmanaged

Parameters

Type	Name	Description
ReadOnlyMemory<T>	data	A ReadOnlyMemory<T>.
int	width	Image width in pixels.
int	height	Image height in pixels.
int	bands	Number of bands.
Enums.BandFormat	format	Band format.

Returns

Type	Description
Image	A new Image.

Type Parameters

Name	Description
T

Exceptions

Type	Condition
VipsException	If unable to make image from data.

NewFromSource(Source, string, Access?, FailOn?, VOption)

Load a formatted image from a source.

Declaration

public static Image NewFromSource(Source source, string strOptions = "", Enums.Access? access = null, Enums.FailOn? failOn = null, VOption kwargs = null)

Parameters

Type	Name	Description
Source	source	The source to load the image from.
string	strOptions	Load options as a string. Use Empty for no options.
Enums.Access?	access	Hint the expected access pattern for the image.
Enums.FailOn?	failOn	The type of error that will cause load to fail. By default, loaders are permissive, that is, None.
VOption	kwargs	Optional options that depend on the load operation.

Returns

Type	Description
Image	A new Image.

Remarks

This behaves exactly as NewFromFile(string, bool?, Access?, FailOn?, VOption), but the image is loaded from a source rather than from a file. At least libvips 8.9 is needed.

Exceptions

Type	Condition
VipsException	If unable to load from source.

NewFromStream(Stream, string, Access?, FailOn?, VOption)

Load a formatted image from a stream.

Declaration

public static Image NewFromStream(Stream stream, string strOptions = "", Enums.Access? access = null, Enums.FailOn? failOn = null, VOption kwargs = null)

Parameters

Type	Name	Description
Stream	stream	The stream to load the image from.
string	strOptions	Load options as a string. Use Empty for no options.
Enums.Access?	access	Hint the expected access pattern for the image.
Enums.FailOn?	failOn	The type of error that will cause load to fail. By default, loaders are permissive, that is, None.
VOption	kwargs	Optional options that depend on the load operation.

Returns

Type	Description
Image	A new Image.

Remarks

This behaves exactly as NewFromSource(Source, string, Access?, FailOn?, VOption), but the image is loaded from a stream rather than from a source. At least libvips 8.9 is needed.

Exceptions

Type	Condition
VipsException	If unable to load from stream.

NewTempFile(string)

Make a new temporary image.

Declaration

public static Image NewTempFile(string format)

Parameters

Type	Name	Description
string	format	The format for the temp file, for example %s.v for a vips format file. The %s is substituted by the file path.

Returns

Type	Description
Image	A new Image.

Remarks

Returns an image backed by a temporary file. When written to with Write(Image), a temporary file will be created on disc in the specified format. When the image is closed, the file will be deleted automatically.

The file is created in the temporary directory. This is set with the environment variable TMPDIR. If this is not set, then on Unix systems, vips will default to /tmp. On Windows, vips uses GetTempPath() to find the temporary directory.

vips uses g_mkstemp() to make the temporary filename. They generally look something like vips-12-EJKJFGH.v.

Exceptions

Type	Condition
VipsException	If unable to make temp file from format.

Niftiload(string, out ForeignFlags, bool?, Access?, FailOn?, bool?)

Load NIfTI volume.

Declaration

public static Image Niftiload(string filename, out Enums.ForeignFlags flags, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
Enums.ForeignFlags	flags	Flags for this file.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Niftiload(filename, out var flags, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Niftiload(string, bool?, Access?, FailOn?, bool?)

Load NIfTI volume.

Declaration

public static Image Niftiload(string filename, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Niftiload(filename, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

NiftiloadSource(Source, out ForeignFlags, bool?, Access?, FailOn?, bool?)

Load NIfTI volumes.

Declaration

public static Image NiftiloadSource(Source source, out Enums.ForeignFlags flags, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Source	source	Source to load from.
Enums.ForeignFlags	flags	Flags for this file.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.NiftiloadSource(source, out var flags, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

NiftiloadSource(Source, bool?, Access?, FailOn?, bool?)

Load NIfTI volumes.

Declaration

public static Image NiftiloadSource(Source source, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Source	source	Source to load from.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.NiftiloadSource(source, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

NiftiloadStream(Stream, out ForeignFlags, bool?, Access?, FailOn?, bool?)

Load NIfTI volumes.

Declaration

public static Image NiftiloadStream(Stream stream, out Enums.ForeignFlags flags, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Stream	stream	Stream to load from.
Enums.ForeignFlags	flags	Flags for this file.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.NiftiloadStream(stream, out var flags, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

NiftiloadStream(Stream, bool?, Access?, FailOn?, bool?)

Load NIfTI volumes.

Declaration

public static Image NiftiloadStream(Stream stream, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Stream	stream	Stream to load from.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.NiftiloadStream(stream, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Niftisave(string, ForeignKeep?, double[], int?, string)

Save image to nifti file.

Declaration

public void Niftisave(string filename, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
string	filename	Filename to save to.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.Niftisave(filename, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

NotEqual(Image)

This operation compares two images on inequality.

Declaration

public Image NotEqual(Image right)

Parameters

Type	Name	Description
Image	right	A Image to compare.

Returns

Type	Description
Image	A new Image.

NotEqual(double)

This operation compares two images on inequality.

Declaration

public Image NotEqual(double right)

Parameters

Type	Name	Description
double	right	A double constant to compare.

Returns

Type	Description
Image	A new Image.

NotEqual(double[])

This operation compares two images on inequality.

Declaration

public Image NotEqual(double[] right)

Parameters

Type	Name	Description
double[]	right	A double array to compare.

Returns

Type	Description
Image	A new Image.

NotEqual(int[])

This operation compares two images on inequality.

Declaration

public Image NotEqual(int[] right)

Parameters

Type	Name	Description
int[]	right	A integer array to compare.

Returns

Type	Description
Image	A new Image.

Openexrload(string, out ForeignFlags, bool?, Access?, FailOn?, bool?)

Load an OpenEXR image.

Declaration

public static Image Openexrload(string filename, out Enums.ForeignFlags flags, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
Enums.ForeignFlags	flags	Flags for this file.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Openexrload(filename, out var flags, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Openexrload(string, bool?, Access?, FailOn?, bool?)

Load an OpenEXR image.

Declaration

public static Image Openexrload(string filename, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Openexrload(filename, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Openslideload(string, out ForeignFlags, int?, bool?, string, bool?, bool?, bool?, Access?, FailOn?, bool?)

Load file with OpenSlide.

Declaration

public static Image Openslideload(string filename, out Enums.ForeignFlags flags, int? level = null, bool? autocrop = null, string associated = null, bool? attachAssociated = null, bool? rgb = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
Enums.ForeignFlags	flags	Flags for this file.
int?	level	Load this level from the file.
bool?	autocrop	Crop to image bounds.
string	associated	Load this associated image.
bool?	attachAssociated	Attach all associated images.
bool?	rgb	Output RGB (not RGBA).
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Openslideload(filename, out var flags, level: int, autocrop: bool, associated: string, attachAssociated: bool, rgb: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Openslideload(string, int?, bool?, string, bool?, bool?, bool?, Access?, FailOn?, bool?)

Load file with OpenSlide.

Declaration

public static Image Openslideload(string filename, int? level = null, bool? autocrop = null, string associated = null, bool? attachAssociated = null, bool? rgb = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
int?	level	Load this level from the file.
bool?	autocrop	Crop to image bounds.
string	associated	Load this associated image.
bool?	attachAssociated	Attach all associated images.
bool?	rgb	Output RGB (not RGBA).
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Openslideload(filename, level: int, autocrop: bool, associated: string, attachAssociated: bool, rgb: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

OpenslideloadSource(Source, out ForeignFlags, int?, bool?, string, bool?, bool?, bool?, Access?, FailOn?, bool?)

Load source with OpenSlide.

Declaration

public static Image OpenslideloadSource(Source source, out Enums.ForeignFlags flags, int? level = null, bool? autocrop = null, string associated = null, bool? attachAssociated = null, bool? rgb = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Source	source	Source to load from.
Enums.ForeignFlags	flags	Flags for this file.
int?	level	Load this level from the file.
bool?	autocrop	Crop to image bounds.
string	associated	Load this associated image.
bool?	attachAssociated	Attach all associated images.
bool?	rgb	Output RGB (not RGBA).
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.OpenslideloadSource(source, out var flags, level: int, autocrop: bool, associated: string, attachAssociated: bool, rgb: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

OpenslideloadSource(Source, int?, bool?, string, bool?, bool?, bool?, Access?, FailOn?, bool?)

Load source with OpenSlide.

Declaration

public static Image OpenslideloadSource(Source source, int? level = null, bool? autocrop = null, string associated = null, bool? attachAssociated = null, bool? rgb = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Source	source	Source to load from.
int?	level	Load this level from the file.
bool?	autocrop	Crop to image bounds.
string	associated	Load this associated image.
bool?	attachAssociated	Attach all associated images.
bool?	rgb	Output RGB (not RGBA).
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.OpenslideloadSource(source, level: int, autocrop: bool, associated: string, attachAssociated: bool, rgb: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

OpenslideloadStream(Stream, out ForeignFlags, int?, bool?, string, bool?, bool?, bool?, Access?, FailOn?, bool?)

Load stream with OpenSlide.

Declaration

public static Image OpenslideloadStream(Stream stream, out Enums.ForeignFlags flags, int? level = null, bool? autocrop = null, string associated = null, bool? attachAssociated = null, bool? rgb = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Stream	stream	Stream to load from.
Enums.ForeignFlags	flags	Flags for this file.
int?	level	Load this level from the file.
bool?	autocrop	Crop to image bounds.
string	associated	Load this associated image.
bool?	attachAssociated	Attach all associated images.
bool?	rgb	Output RGB (not RGBA).
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.OpenslideloadStream(stream, out var flags, level: int, autocrop: bool, associated: string, attachAssociated: bool, rgb: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

OpenslideloadStream(Stream, int?, bool?, string, bool?, bool?, bool?, Access?, FailOn?, bool?)

Load stream with OpenSlide.

Declaration

public static Image OpenslideloadStream(Stream stream, int? level = null, bool? autocrop = null, string associated = null, bool? attachAssociated = null, bool? rgb = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Stream	stream	Stream to load from.
int?	level	Load this level from the file.
bool?	autocrop	Crop to image bounds.
string	associated	Load this associated image.
bool?	attachAssociated	Attach all associated images.
bool?	rgb	Output RGB (not RGBA).
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.OpenslideloadStream(stream, level: int, autocrop: bool, associated: string, attachAssociated: bool, rgb: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Pdfload(string, out ForeignFlags, int?, int?, double?, double?, double[], string, bool?, Access?, FailOn?, bool?)

Load PDF from file.

Declaration

public static Image Pdfload(string filename, out Enums.ForeignFlags flags, int? page = null, int? n = null, double? dpi = null, double? scale = null, double[] background = null, string password = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
Enums.ForeignFlags	flags	Flags for this file.
int?	page	First page to load.
int?	n	Number of pages to load, -1 for all.
double?	dpi	DPI to render at.
double?	scale	Factor to scale by.
double[]	background	Background colour.
string	password	Password to decrypt with.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Pdfload(filename, out var flags, page: int, n: int, dpi: double, scale: double, background: double[], password: string, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Pdfload(string, int?, int?, double?, double?, double[], string, bool?, Access?, FailOn?, bool?)

Load PDF from file.

Declaration

public static Image Pdfload(string filename, int? page = null, int? n = null, double? dpi = null, double? scale = null, double[] background = null, string password = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
int?	page	First page to load.
int?	n	Number of pages to load, -1 for all.
double?	dpi	DPI to render at.
double?	scale	Factor to scale by.
double[]	background	Background colour.
string	password	Password to decrypt with.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Pdfload(filename, page: int, n: int, dpi: double, scale: double, background: double[], password: string, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

PdfloadBuffer(byte[], out ForeignFlags, int?, int?, double?, double?, double[], string, bool?, Access?, FailOn?, bool?)

Load PDF from buffer.

Declaration

public static Image PdfloadBuffer(byte[] buffer, out Enums.ForeignFlags flags, int? page = null, int? n = null, double? dpi = null, double? scale = null, double[] background = null, string password = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
byte[]	buffer	Buffer to load from.
Enums.ForeignFlags	flags	Flags for this file.
int?	page	First page to load.
int?	n	Number of pages to load, -1 for all.
double?	dpi	DPI to render at.
double?	scale	Factor to scale by.
double[]	background	Background colour.
string	password	Password to decrypt with.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.PdfloadBuffer(buffer, out var flags, page: int, n: int, dpi: double, scale: double, background: double[], password: string, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

PdfloadBuffer(byte[], int?, int?, double?, double?, double[], string, bool?, Access?, FailOn?, bool?)

Load PDF from buffer.

Declaration

public static Image PdfloadBuffer(byte[] buffer, int? page = null, int? n = null, double? dpi = null, double? scale = null, double[] background = null, string password = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
byte[]	buffer	Buffer to load from.
int?	page	First page to load.
int?	n	Number of pages to load, -1 for all.
double?	dpi	DPI to render at.
double?	scale	Factor to scale by.
double[]	background	Background colour.
string	password	Password to decrypt with.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.PdfloadBuffer(buffer, page: int, n: int, dpi: double, scale: double, background: double[], password: string, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

PdfloadSource(Source, out ForeignFlags, int?, int?, double?, double?, double[], string, bool?, Access?, FailOn?, bool?)

Load PDF from source.

Declaration

public static Image PdfloadSource(Source source, out Enums.ForeignFlags flags, int? page = null, int? n = null, double? dpi = null, double? scale = null, double[] background = null, string password = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Source	source	Source to load from.
Enums.ForeignFlags	flags	Flags for this file.
int?	page	First page to load.
int?	n	Number of pages to load, -1 for all.
double?	dpi	DPI to render at.
double?	scale	Factor to scale by.
double[]	background	Background colour.
string	password	Password to decrypt with.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.PdfloadSource(source, out var flags, page: int, n: int, dpi: double, scale: double, background: double[], password: string, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

PdfloadSource(Source, int?, int?, double?, double?, double[], string, bool?, Access?, FailOn?, bool?)

Load PDF from source.

Declaration

public static Image PdfloadSource(Source source, int? page = null, int? n = null, double? dpi = null, double? scale = null, double[] background = null, string password = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Source	source	Source to load from.
int?	page	First page to load.
int?	n	Number of pages to load, -1 for all.
double?	dpi	DPI to render at.
double?	scale	Factor to scale by.
double[]	background	Background colour.
string	password	Password to decrypt with.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.PdfloadSource(source, page: int, n: int, dpi: double, scale: double, background: double[], password: string, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

PdfloadStream(Stream, out ForeignFlags, int?, int?, double?, double?, double[], string, bool?, Access?, FailOn?, bool?)

Load PDF from stream.

Declaration

public static Image PdfloadStream(Stream stream, out Enums.ForeignFlags flags, int? page = null, int? n = null, double? dpi = null, double? scale = null, double[] background = null, string password = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Stream	stream	Stream to load from.
Enums.ForeignFlags	flags	Flags for this file.
int?	page	First page to load.
int?	n	Number of pages to load, -1 for all.
double?	dpi	DPI to render at.
double?	scale	Factor to scale by.
double[]	background	Background colour.
string	password	Password to decrypt with.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.PdfloadStream(stream, out var flags, page: int, n: int, dpi: double, scale: double, background: double[], password: string, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

PdfloadStream(Stream, int?, int?, double?, double?, double[], string, bool?, Access?, FailOn?, bool?)

Load PDF from stream.

Declaration

public static Image PdfloadStream(Stream stream, int? page = null, int? n = null, double? dpi = null, double? scale = null, double[] background = null, string password = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Stream	stream	Stream to load from.
int?	page	First page to load.
int?	n	Number of pages to load, -1 for all.
double?	dpi	DPI to render at.
double?	scale	Factor to scale by.
double[]	background	Background colour.
string	password	Password to decrypt with.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.PdfloadStream(stream, page: int, n: int, dpi: double, scale: double, background: double[], password: string, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Percent(double)

Find threshold for percent of pixels.

Declaration

public int Percent(double percent)

Parameters

Type	Name	Description
double	percent	Percent of pixels.

Returns

Type	Description
int	A int.

Examples

int threshold = in.Percent(percent);

Perlin(int, int, int?, bool?, int?)

Make a perlin noise image.

Declaration

public static Image Perlin(int width, int height, int? cellSize = null, bool? uchar = null, int? seed = null)

Parameters

Type	Name	Description
int	width	Image width in pixels.
int	height	Image height in pixels.
int?	cellSize	Size of Perlin cells.
bool?	uchar	Output an unsigned char image.
int?	seed	Random number seed.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Perlin(width, height, cellSize: int, uchar: bool, seed: int);

Phasecor(Image)

Calculate phase correlation.

Declaration

public Image Phasecor(Image in2)

Parameters

Type	Name	Description
Image	in2	Second input image.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Phasecor(in2);

Pngload(string, out ForeignFlags, bool?, bool?, Access?, FailOn?, bool?)

Load png from file.

Declaration

public static Image Pngload(string filename, out Enums.ForeignFlags flags, bool? unlimited = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
Enums.ForeignFlags	flags	Flags for this file.
bool?	unlimited	Remove all denial of service limits.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Pngload(filename, out var flags, unlimited: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Pngload(string, bool?, bool?, Access?, FailOn?, bool?)

Load png from file.

Declaration

public static Image Pngload(string filename, bool? unlimited = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
bool?	unlimited	Remove all denial of service limits.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Pngload(filename, unlimited: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

PngloadBuffer(byte[], out ForeignFlags, bool?, bool?, Access?, FailOn?, bool?)

Load png from buffer.

Declaration

public static Image PngloadBuffer(byte[] buffer, out Enums.ForeignFlags flags, bool? unlimited = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
byte[]	buffer	Buffer to load from.
Enums.ForeignFlags	flags	Flags for this file.
bool?	unlimited	Remove all denial of service limits.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.PngloadBuffer(buffer, out var flags, unlimited: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

PngloadBuffer(byte[], bool?, bool?, Access?, FailOn?, bool?)

Load png from buffer.

Declaration

public static Image PngloadBuffer(byte[] buffer, bool? unlimited = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
byte[]	buffer	Buffer to load from.
bool?	unlimited	Remove all denial of service limits.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.PngloadBuffer(buffer, unlimited: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

PngloadSource(Source, out ForeignFlags, bool?, bool?, Access?, FailOn?, bool?)

Load png from source.

Declaration

public static Image PngloadSource(Source source, out Enums.ForeignFlags flags, bool? unlimited = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Source	source	Source to load from.
Enums.ForeignFlags	flags	Flags for this file.
bool?	unlimited	Remove all denial of service limits.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.PngloadSource(source, out var flags, unlimited: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

PngloadSource(Source, bool?, bool?, Access?, FailOn?, bool?)

Load png from source.

Declaration

public static Image PngloadSource(Source source, bool? unlimited = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Source	source	Source to load from.
bool?	unlimited	Remove all denial of service limits.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.PngloadSource(source, unlimited: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

PngloadStream(Stream, out ForeignFlags, bool?, bool?, Access?, FailOn?, bool?)

Load png from stream.

Declaration

public static Image PngloadStream(Stream stream, out Enums.ForeignFlags flags, bool? unlimited = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Stream	stream	Stream to load from.
Enums.ForeignFlags	flags	Flags for this file.
bool?	unlimited	Remove all denial of service limits.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.PngloadStream(stream, out var flags, unlimited: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

PngloadStream(Stream, bool?, bool?, Access?, FailOn?, bool?)

Load png from stream.

Declaration

public static Image PngloadStream(Stream stream, bool? unlimited = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Stream	stream	Stream to load from.
bool?	unlimited	Remove all denial of service limits.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.PngloadStream(stream, unlimited: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Pngsave(string, int?, bool?, ForeignPngFilter?, bool?, int?, double?, int?, int?, ForeignKeep?, double[], int?, string)

Save image to file as PNG.

Declaration

public void Pngsave(string filename, int? compression = null, bool? interlace = null, Enums.ForeignPngFilter? filter = null, bool? palette = null, int? q = null, double? dither = null, int? bitdepth = null, int? effort = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
string	filename	Filename to save to.
int?	compression	Compression factor.
bool?	interlace	Interlace image.
Enums.ForeignPngFilter?	filter	libspng row filter flag(s).
bool?	palette	Quantise to 8bpp palette.
int?	q	Quantisation quality.
double?	dither	Amount of dithering.
int?	bitdepth	Write as a 1, 2, 4, 8 or 16 bit image.
int?	effort	Quantisation CPU effort.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.Pngsave(filename, compression: int, interlace: bool, filter: Enums.ForeignPngFilter, palette: bool, q: int, dither: double, bitdepth: int, effort: int, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

PngsaveBuffer(int?, bool?, ForeignPngFilter?, bool?, int?, double?, int?, int?, ForeignKeep?, double[], int?, string)

Save image to buffer as PNG.

Declaration

public byte[] PngsaveBuffer(int? compression = null, bool? interlace = null, Enums.ForeignPngFilter? filter = null, bool? palette = null, int? q = null, double? dither = null, int? bitdepth = null, int? effort = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
int?	compression	Compression factor.
bool?	interlace	Interlace image.
Enums.ForeignPngFilter?	filter	libspng row filter flag(s).
bool?	palette	Quantise to 8bpp palette.
int?	q	Quantisation quality.
double?	dither	Amount of dithering.
int?	bitdepth	Write as a 1, 2, 4, 8 or 16 bit image.
int?	effort	Quantisation CPU effort.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Returns

Type	Description
byte[]	An array of bytes.

Examples

byte[] buffer = in.PngsaveBuffer(compression: int, interlace: bool, filter: Enums.ForeignPngFilter, palette: bool, q: int, dither: double, bitdepth: int, effort: int, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

PngsaveStream(Stream, int?, bool?, ForeignPngFilter?, bool?, int?, double?, int?, int?, ForeignKeep?, double[], int?, string)

Save image to stream as PNG.

Declaration

public void PngsaveStream(Stream stream, int? compression = null, bool? interlace = null, Enums.ForeignPngFilter? filter = null, bool? palette = null, int? q = null, double? dither = null, int? bitdepth = null, int? effort = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
Stream	stream	Stream to save to.
int?	compression	Compression factor.
bool?	interlace	Interlace image.
Enums.ForeignPngFilter?	filter	libspng row filter flag(s).
bool?	palette	Quantise to 8bpp palette.
int?	q	Quantisation quality.
double?	dither	Amount of dithering.
int?	bitdepth	Write as a 1, 2, 4, 8 or 16 bit image.
int?	effort	Quantisation CPU effort.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.PngsaveStream(stream, compression: int, interlace: bool, filter: Enums.ForeignPngFilter, palette: bool, q: int, dither: double, bitdepth: int, effort: int, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

PngsaveTarget(Target, int?, bool?, ForeignPngFilter?, bool?, int?, double?, int?, int?, ForeignKeep?, double[], int?, string)

Save image to target as PNG.

Declaration

public void PngsaveTarget(Target target, int? compression = null, bool? interlace = null, Enums.ForeignPngFilter? filter = null, bool? palette = null, int? q = null, double? dither = null, int? bitdepth = null, int? effort = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
Target	target	Target to save to.
int?	compression	Compression factor.
bool?	interlace	Interlace image.
Enums.ForeignPngFilter?	filter	libspng row filter flag(s).
bool?	palette	Quantise to 8bpp palette.
int?	q	Quantisation quality.
double?	dither	Amount of dithering.
int?	bitdepth	Write as a 1, 2, 4, 8 or 16 bit image.
int?	effort	Quantisation CPU effort.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.PngsaveTarget(target, compression: int, interlace: bool, filter: Enums.ForeignPngFilter, palette: bool, q: int, dither: double, bitdepth: int, effort: int, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

Polar()

Return an image converted to polar coordinates.

Declaration

public Image Polar()

Returns

Type	Description
Image	A new Image.

Pow(Image)

Raise to power of an image.

Declaration

public Image Pow(Image exp)

Parameters

Type	Name	Description
Image	exp	To the power of this.

Returns

Type	Description
Image	A new Image.

Pow(double)

Raise to power of an constant.

Declaration

public Image Pow(double exp)

Parameters

Type	Name	Description
double	exp	To the power of this.

Returns

Type	Description
Image	A new Image.

Pow(double[])

Raise to power of an array.

Declaration

public Image Pow(double[] exp)

Parameters

Type	Name	Description
double[]	exp	To the power of this.

Returns

Type	Description
Image	A new Image.

Pow(int[])

Raise to power of an array.

Declaration

public Image Pow(int[] exp)

Parameters

Type	Name	Description
int[]	exp	To the power of this.

Returns

Type	Description
Image	A new Image.

Ppmload(string, out ForeignFlags, bool?, Access?, FailOn?, bool?)

Load ppm from file.

Declaration

public static Image Ppmload(string filename, out Enums.ForeignFlags flags, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
Enums.ForeignFlags	flags	Flags for this file.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Ppmload(filename, out var flags, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Ppmload(string, bool?, Access?, FailOn?, bool?)

Load ppm from file.

Declaration

public static Image Ppmload(string filename, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Ppmload(filename, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

PpmloadSource(Source, out ForeignFlags, bool?, Access?, FailOn?, bool?)

Load ppm base class.

Declaration

public static Image PpmloadSource(Source source, out Enums.ForeignFlags flags, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Source	source	Source to load from.
Enums.ForeignFlags	flags	Flags for this file.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.PpmloadSource(source, out var flags, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

PpmloadSource(Source, bool?, Access?, FailOn?, bool?)

Load ppm base class.

Declaration

public static Image PpmloadSource(Source source, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Source	source	Source to load from.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.PpmloadSource(source, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

PpmloadStream(Stream, out ForeignFlags, bool?, Access?, FailOn?, bool?)

Load ppm base class.

Declaration

public static Image PpmloadStream(Stream stream, out Enums.ForeignFlags flags, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Stream	stream	Stream to load from.
Enums.ForeignFlags	flags	Flags for this file.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.PpmloadStream(stream, out var flags, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

PpmloadStream(Stream, bool?, Access?, FailOn?, bool?)

Load ppm base class.

Declaration

public static Image PpmloadStream(Stream stream, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Stream	stream	Stream to load from.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.PpmloadStream(stream, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Ppmsave(string, ForeignPpmFormat?, bool?, int?, ForeignKeep?, double[], int?, string)

Save image to ppm file.

Declaration

public void Ppmsave(string filename, Enums.ForeignPpmFormat? format = null, bool? ascii = null, int? bitdepth = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
string	filename	Filename to save to.
Enums.ForeignPpmFormat?	format	Format to save in.
bool?	ascii	Save as ascii.
int?	bitdepth	Set to 1 to write as a 1 bit image.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.Ppmsave(filename, format: Enums.ForeignPpmFormat, ascii: bool, bitdepth: int, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

PpmsaveStream(Stream, ForeignPpmFormat?, bool?, int?, ForeignKeep?, double[], int?, string)

Save to ppm.

Declaration

public void PpmsaveStream(Stream stream, Enums.ForeignPpmFormat? format = null, bool? ascii = null, int? bitdepth = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
Stream	stream	Stream to save to.
Enums.ForeignPpmFormat?	format	Format to save in.
bool?	ascii	Save as ascii.
int?	bitdepth	Set to 1 to write as a 1 bit image.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.PpmsaveStream(stream, format: Enums.ForeignPpmFormat, ascii: bool, bitdepth: int, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

PpmsaveTarget(Target, ForeignPpmFormat?, bool?, int?, ForeignKeep?, double[], int?, string)

Save to ppm.

Declaration

public void PpmsaveTarget(Target target, Enums.ForeignPpmFormat? format = null, bool? ascii = null, int? bitdepth = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
Target	target	Target to save to.
Enums.ForeignPpmFormat?	format	Format to save in.
bool?	ascii	Save as ascii.
int?	bitdepth	Set to 1 to write as a 1 bit image.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.PpmsaveTarget(target, format: Enums.ForeignPpmFormat, ascii: bool, bitdepth: int, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

Premultiply(double?)

Premultiply image alpha.

Declaration

public Image Premultiply(double? maxAlpha = null)

Parameters

Type	Name	Description
double?	maxAlpha	Maximum value of alpha channel.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Premultiply(maxAlpha: double);

Prewitt()

Prewitt edge detector.

Declaration

public Image Prewitt()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Prewitt();

Profile()

Find image profiles.

Declaration

public object[] Profile()

Returns

Type	Description
object[]	An array of objects.

Examples

var output = in.Profile();

ProfileLoad(string)

Load named ICC profile.

Declaration

public static byte[] ProfileLoad(string name)

Parameters

Type	Name	Description
string	name	Profile name.

Returns

Type	Description
byte[]	An array of bytes.

Examples

byte[] profile = NetVips.Image.ProfileLoad(name);

Project()

Find image projections.

Declaration

public object[] Project()

Returns

Type	Description
object[]	An array of objects.

Examples

var output = in.Project();

Quadratic(Image, GObject)

Resample an image with a quadratic transform.

Declaration

public Image Quadratic(Image coeff, GObject interpolate = null)

Parameters

Type	Name	Description
Image	coeff	Coefficient matrix.
GObject	interpolate	Interpolate values with this.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Quadratic(coeff, interpolate: GObject);

Rad2float()

Unpack Radiance coding to float RGB.

Declaration

public Image Rad2float()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Rad2float();

Radload(string, out ForeignFlags, bool?, Access?, FailOn?, bool?)

Load a Radiance image from a file.

Declaration

public static Image Radload(string filename, out Enums.ForeignFlags flags, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
Enums.ForeignFlags	flags	Flags for this file.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Radload(filename, out var flags, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Radload(string, bool?, Access?, FailOn?, bool?)

Load a Radiance image from a file.

Declaration

public static Image Radload(string filename, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Radload(filename, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

RadloadBuffer(byte[], out ForeignFlags, bool?, Access?, FailOn?, bool?)

Load rad from buffer.

Declaration

public static Image RadloadBuffer(byte[] buffer, out Enums.ForeignFlags flags, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
byte[]	buffer	Buffer to load from.
Enums.ForeignFlags	flags	Flags for this file.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.RadloadBuffer(buffer, out var flags, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

RadloadBuffer(byte[], bool?, Access?, FailOn?, bool?)

Load rad from buffer.

Declaration

public static Image RadloadBuffer(byte[] buffer, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
byte[]	buffer	Buffer to load from.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.RadloadBuffer(buffer, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

RadloadSource(Source, out ForeignFlags, bool?, Access?, FailOn?, bool?)

Load rad from source.

Declaration

public static Image RadloadSource(Source source, out Enums.ForeignFlags flags, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Source	source	Source to load from.
Enums.ForeignFlags	flags	Flags for this file.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.RadloadSource(source, out var flags, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

RadloadSource(Source, bool?, Access?, FailOn?, bool?)

Load rad from source.

Declaration

public static Image RadloadSource(Source source, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Source	source	Source to load from.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.RadloadSource(source, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

RadloadStream(Stream, out ForeignFlags, bool?, Access?, FailOn?, bool?)

Load rad from stream.

Declaration

public static Image RadloadStream(Stream stream, out Enums.ForeignFlags flags, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Stream	stream	Stream to load from.
Enums.ForeignFlags	flags	Flags for this file.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.RadloadStream(stream, out var flags, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

RadloadStream(Stream, bool?, Access?, FailOn?, bool?)

Load rad from stream.

Declaration

public static Image RadloadStream(Stream stream, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Stream	stream	Stream to load from.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.RadloadStream(stream, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Radsave(string, ForeignKeep?, double[], int?, string)

Save image to Radiance file.

Declaration

public void Radsave(string filename, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
string	filename	Filename to save to.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.Radsave(filename, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

RadsaveBuffer(ForeignKeep?, double[], int?, string)

Save image to Radiance buffer.

Declaration

public byte[] RadsaveBuffer(Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Returns

Type	Description
byte[]	An array of bytes.

Examples

byte[] buffer = in.RadsaveBuffer(keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

RadsaveStream(Stream, ForeignKeep?, double[], int?, string)

Save image to Radiance stream.

Declaration

public void RadsaveStream(Stream stream, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
Stream	stream	Stream to save to.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.RadsaveStream(stream, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

RadsaveTarget(Target, ForeignKeep?, double[], int?, string)

Save image to Radiance target.

Declaration

public void RadsaveTarget(Target target, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
Target	target	Target to save to.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.RadsaveTarget(target, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

Rank(int, int, int)

Rank filter.

Declaration

public Image Rank(int width, int height, int index)

Parameters

Type	Name	Description
int	width	Window width in pixels.
int	height	Window height in pixels.
int	index	Select pixel at index.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Rank(width, height, index);

Rawload(string, int, int, int, out ForeignFlags, ulong?, BandFormat?, Interpretation?, bool?, Access?, FailOn?, bool?)

Load raw data from a file.

Declaration

public static Image Rawload(string filename, int width, int height, int bands, out Enums.ForeignFlags flags, ulong? offset = null, Enums.BandFormat? format = null, Enums.Interpretation? interpretation = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
int	width	Image width in pixels.
int	height	Image height in pixels.
int	bands	Number of bands in image.
Enums.ForeignFlags	flags	Flags for this file.
ulong?	offset	Offset in bytes from start of file.
Enums.BandFormat?	format	Pixel format in image.
Enums.Interpretation?	interpretation	Pixel interpretation.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Rawload(filename, width, height, bands, out var flags, offset: ulong, format: Enums.BandFormat, interpretation: Enums.Interpretation, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Rawload(string, int, int, int, ulong?, BandFormat?, Interpretation?, bool?, Access?, FailOn?, bool?)

Load raw data from a file.

Declaration

public static Image Rawload(string filename, int width, int height, int bands, ulong? offset = null, Enums.BandFormat? format = null, Enums.Interpretation? interpretation = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
int	width	Image width in pixels.
int	height	Image height in pixels.
int	bands	Number of bands in image.
ulong?	offset	Offset in bytes from start of file.
Enums.BandFormat?	format	Pixel format in image.
Enums.Interpretation?	interpretation	Pixel interpretation.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Rawload(filename, width, height, bands, offset: ulong, format: Enums.BandFormat, interpretation: Enums.Interpretation, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Rawsave(string, ForeignKeep?, double[], int?, string)

Save image to raw file.

Declaration

public void Rawsave(string filename, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
string	filename	Filename to save to.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.Rawsave(filename, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

RawsaveBuffer(ForeignKeep?, double[], int?, string)

Write raw image to buffer.

Declaration

public byte[] RawsaveBuffer(Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Returns

Type	Description
byte[]	An array of bytes.

Examples

byte[] buffer = in.RawsaveBuffer(keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

RawsaveStream(Stream, ForeignKeep?, double[], int?, string)

Write raw image to stream.

Declaration

public void RawsaveStream(Stream stream, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
Stream	stream	Stream to save to.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.RawsaveStream(stream, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

RawsaveTarget(Target, ForeignKeep?, double[], int?, string)

Write raw image to target.

Declaration

public void RawsaveTarget(Target target, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
Target	target	Target to save to.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.RawsaveTarget(target, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

Real()

Return the real part of a complex image.

Declaration

public Image Real()

Returns

Type	Description
Image	A new Image.

Recomb(Image)

Linear recombination with matrix.

Declaration

public Image Recomb(Image m)

Parameters

Type	Name	Description
Image	m	Matrix of coefficients.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Recomb(m);

Rect()

Return an image converted to rectangular coordinates.

Declaration

public Image Rect()

Returns

Type	Description
Image	A new Image.

Reduce(double, double, Kernel?, double?)

Reduce an image.

Declaration

public Image Reduce(double hshrink, double vshrink, Enums.Kernel? kernel = null, double? gap = null)

Parameters

Type	Name	Description
double	hshrink	Horizontal shrink factor.
double	vshrink	Vertical shrink factor.
Enums.Kernel?	kernel	Resampling kernel.
double?	gap	Reducing gap.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Reduce(hshrink, vshrink, kernel: Enums.Kernel, gap: double);

Reduceh(double, Kernel?, double?)

Shrink an image horizontally.

Declaration

public Image Reduceh(double hshrink, Enums.Kernel? kernel = null, double? gap = null)

Parameters

Type	Name	Description
double	hshrink	Horizontal shrink factor.
Enums.Kernel?	kernel	Resampling kernel.
double?	gap	Reducing gap.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Reduceh(hshrink, kernel: Enums.Kernel, gap: double);

Reducev(double, Kernel?, double?)

Shrink an image vertically.

Declaration

public Image Reducev(double vshrink, Enums.Kernel? kernel = null, double? gap = null)

Parameters

Type	Name	Description
double	vshrink	Vertical shrink factor.
Enums.Kernel?	kernel	Resampling kernel.
double?	gap	Reducing gap.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Reducev(vshrink, kernel: Enums.Kernel, gap: double);

Relational(Image, OperationRelational)

Relational operation on two images.

Declaration

public Image Relational(Image right, Enums.OperationRelational relational)

Parameters

Type	Name	Description
Image	right	Right-hand image argument.
Enums.OperationRelational	relational	Relational to perform.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = left.Relational(right, relational);

RelationalConst(OperationRelational, double[])

Relational operations against a constant.

Declaration

public Image RelationalConst(Enums.OperationRelational relational, double[] c)

Parameters

Type	Name	Description
Enums.OperationRelational	relational	Relational to perform.
double[]	c	Array of constants.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.RelationalConst(relational, c);

Remainder(Image)

Remainder after integer division of two images.

Declaration

public Image Remainder(Image right)

Parameters

Type	Name	Description
Image	right	Right-hand image argument.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = left.Remainder(right);

RemainderConst(double[])

Remainder after integer division of an image and a constant.

Declaration

public Image RemainderConst(double[] c)

Parameters

Type	Name	Description
double[]	c	Array of constants.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.RemainderConst(c);

Replicate(int, int)

Replicate an image.

Declaration

public Image Replicate(int across, int down)

Parameters

Type	Name	Description
int	across	Repeat this many times horizontally.
int	down	Repeat this many times vertically.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Replicate(across, down);

Resize(double, Kernel?, double?, double?)

Resize an image.

Declaration

public Image Resize(double scale, Enums.Kernel? kernel = null, double? gap = null, double? vscale = null)

Parameters

Type	Name	Description
double	scale	Scale image by this factor.
Enums.Kernel?	kernel	Resampling kernel.
double?	gap	Reducing gap.
double?	vscale	Vertical scale image by this factor.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Resize(scale, kernel: Enums.Kernel, gap: double, vscale: double);

Rint()

Return the nearest integral value.

Declaration

public Image Rint()

Returns

Type	Description
Image	A new Image.

Rot(Angle)

Rotate an image.

Declaration

public Image Rot(Enums.Angle angle)

Parameters

Type	Name	Description
Enums.Angle	angle	Angle to rotate image.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Rot(angle);

Rot180()

Rotate 180 degrees.

Declaration

public Image Rot180()

Returns

Type	Description
Image	A new Image.

Rot270()

Rotate 270 degrees clockwise.

Declaration

public Image Rot270()

Returns

Type	Description
Image	A new Image.

Rot45(Angle45?)

Rotate an image.

Declaration

public Image Rot45(Enums.Angle45? angle = null)

Parameters

Type	Name	Description
Enums.Angle45?	angle	Angle to rotate image.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Rot45(angle: Enums.Angle45);

Rot90()

Rotate 90 degrees clockwise.

Declaration

public Image Rot90()

Returns

Type	Description
Image	A new Image.

Rotate(double, GObject, double[], double?, double?, double?, double?)

Rotate an image by a number of degrees.

Declaration

public Image Rotate(double angle, GObject interpolate = null, double[] background = null, double? odx = null, double? ody = null, double? idx = null, double? idy = null)

Parameters

Type	Name	Description
double	angle	Rotate clockwise by this many degrees.
GObject	interpolate	Interpolate pixels with this.
double[]	background	Background value.
double?	odx	Horizontal output displacement.
double?	ody	Vertical output displacement.
double?	idx	Horizontal input displacement.
double?	idy	Vertical input displacement.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Rotate(angle, interpolate: GObject, background: double[], odx: double, ody: double, idx: double, idy: double);

Round(OperationRound)

Perform a round function on an image.

Declaration

public Image Round(Enums.OperationRound round)

Parameters

Type	Name	Description
Enums.OperationRound	round	Rounding operation to perform.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Round(round);

SRGB2HSV()

Transform sRGB to HSV.

Declaration

public Image SRGB2HSV()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.SRGB2HSV();

SRGB2scRGB()

Convert an sRGB image to scRGB.

Declaration

public Image SRGB2scRGB()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.SRGB2scRGB();

ScRGB2BW(int?)

Convert scRGB to BW.

Declaration

public Image ScRGB2BW(int? depth = null)

Parameters

Type	Name	Description
int?	depth	Output device space depth in bits.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.ScRGB2BW(depth: int);

ScRGB2XYZ()

Transform scRGB to XYZ.

Declaration

public Image ScRGB2XYZ()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.ScRGB2XYZ();

ScRGB2sRGB(int?)

Convert an scRGB image to sRGB.

Declaration

public Image ScRGB2sRGB(int? depth = null)

Parameters

Type	Name	Description
int?	depth	Output device space depth in bits.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.ScRGB2sRGB(depth: int);

ScaleImage(double?, bool?)

Scale an image to 0 - 255.

Declaration

public Image ScaleImage(double? exp = null, bool? log = null)

Parameters

Type	Name	Description
double?	exp	Exponent for log scale.
bool?	log	Log scale.

Returns

Type	Description
Image	A new Image.

Remarks

This is the libvips scale operation, renamed to avoid a clash with the scale for convolution masks.

Examples

using Image @out = in.Scale(exp: double, log: bool);

Scharr()

Scharr edge detector.

Declaration

public Image Scharr()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Scharr();

Sdf(int, int, SdfShape, double?, double[], double[], double[])

Create an SDF image.

Declaration

public static Image Sdf(int width, int height, Enums.SdfShape shape, double? r = null, double[] a = null, double[] b = null, double[] corners = null)

Parameters

Type	Name	Description
int	width	Image width in pixels.
int	height	Image height in pixels.
Enums.SdfShape	shape	SDF shape to create.
double?	r	Radius.
double[]	a	Point a.
double[]	b	Point b.
double[]	corners	Corner radii.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Sdf(width, height, shape, r: double, a: double[], b: double[], corners: double[]);

Sequential(int?)

Check sequential access.

Declaration

public Image Sequential(int? tileHeight = null)

Parameters

Type	Name	Description
int?	tileHeight	Tile height in pixels.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Sequential(tileHeight: int);

SetKill(bool)

Set the kill flag on an image. Handy for stopping sets of threads.

Declaration

public void SetKill(bool kill)

Parameters

Type	Name	Description
bool	kill	The kill state.

Remarks

At least libvips 8.8 is needed.

SetProgress(bool)

Enable progress reporting on an image.

Declaration

public void SetProgress(bool progress)

Parameters

Type	Name	Description
bool	progress	true to enable progress reporting; otherwise, false.

Remarks

When progress reporting is enabled, evaluation of the most downstream image from this image will report progress using the PreEval, Eval and PostEval signals.

SetProgress(IProgress<int>, CancellationToken)

Attach progress feedback, if required.

Declaration

public void SetProgress(IProgress<int> progress, CancellationToken token = default)

Parameters

Type	Name	Description
IProgress<int>	progress	A provider for progress updates.
CancellationToken	token	Cancellation token to block evaluation on this image.

Remarks

You can use this function to update user-interfaces with progress feedback, for example:

using var image = Image.NewFromFile("huge.jpg", access: Enums.Access.Sequential);

var progress = new Progress<int>(percent =>
{
    Console.Write($"\r{percent}% complete");
});
image.SetProgress(progress);

image.Dzsave("image-pyramid");

If a cancellation has been requested for this token (see token) it will block the evaluation of this image on libvips >= 8.8 (see SetKill(bool)). If this version requirement is not met, it will only stop updating the progress.

Sharpen(double?, double?, double?, double?, double?, double?)

Unsharp masking for print.

Declaration

public Image Sharpen(double? sigma = null, double? x1 = null, double? y2 = null, double? y3 = null, double? m1 = null, double? m2 = null)

Parameters

Type	Name	Description
double?	sigma	Sigma of Gaussian.
double?	x1	Flat/jaggy threshold.
double?	y2	Maximum brightening.
double?	y3	Maximum darkening.
double?	m1	Slope for flat areas.
double?	m2	Slope for jaggy areas.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Sharpen(sigma: double, x1: double, y2: double, y3: double, m1: double, m2: double);

Shrink(double, double, bool?)

Shrink an image.

Declaration

public Image Shrink(double hshrink, double vshrink, bool? ceil = null)

Parameters

Type	Name	Description
double	hshrink	Horizontal shrink factor.
double	vshrink	Vertical shrink factor.
bool?	ceil	Round-up output dimensions.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Shrink(hshrink, vshrink, ceil: bool);

Shrinkh(int, bool?)

Shrink an image horizontally.

Declaration

public Image Shrinkh(int hshrink, bool? ceil = null)

Parameters

Type	Name	Description
int	hshrink	Horizontal shrink factor.
bool?	ceil	Round-up output dimensions.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Shrinkh(hshrink, ceil: bool);

Shrinkv(int, bool?)

Shrink an image vertically.

Declaration

public Image Shrinkv(int vshrink, bool? ceil = null)

Parameters

Type	Name	Description
int	vshrink	Vertical shrink factor.
bool?	ceil	Round-up output dimensions.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Shrinkv(vshrink, ceil: bool);

Sign()

Unit vector of pixel.

Declaration

public Image Sign()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Sign();

SignalConnect(Signals, EvalDelegate, nint)

Connects a callback function (callback) to a signal on this image.

Declaration

public ulong SignalConnect(Enums.Signals signal, Image.EvalDelegate callback, nint data = 0)

Parameters

Type	Name	Description
Enums.Signals	signal	A signal to be used on this image. See Enums.Signals.
Image.EvalDelegate	callback	The callback to connect.
nint	data	Data to pass to handler calls.

Returns

Type	Description
ulong	The handler id.

Remarks

The callback will be triggered every time this signal is issued on this image.

Exceptions

Type	Condition
ArgumentException	If it failed to connect the signal.

Similarity(double?, double?, GObject, double[], double?, double?, double?, double?)

Similarity transform of an image.

Declaration

public Image Similarity(double? scale = null, double? angle = null, GObject interpolate = null, double[] background = null, double? odx = null, double? ody = null, double? idx = null, double? idy = null)

Parameters

Type	Name	Description
double?	scale	Scale by this factor.
double?	angle	Rotate clockwise by this many degrees.
GObject	interpolate	Interpolate pixels with this.
double[]	background	Background value.
double?	odx	Horizontal output displacement.
double?	ody	Vertical output displacement.
double?	idx	Horizontal input displacement.
double?	idy	Vertical input displacement.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Similarity(scale: double, angle: double, interpolate: GObject, background: double[], odx: double, ody: double, idx: double, idy: double);

Sin()

Return the sine of an image in degrees.

Declaration

public Image Sin()

Returns

Type	Description
Image	A new Image.

Sines(int, int, bool?, double?, double?)

Make a 2D sine wave.

Declaration

public static Image Sines(int width, int height, bool? uchar = null, double? hfreq = null, double? vfreq = null)

Parameters

Type	Name	Description
int	width	Image width in pixels.
int	height	Image height in pixels.
bool?	uchar	Output an unsigned char image.
double?	hfreq	Horizontal spatial frequency.
double?	vfreq	Vertical spatial frequency.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Sines(width, height, uchar: bool, hfreq: double, vfreq: double);

Sinh()

Return the hyperbolic sine of an image in radians.

Declaration

public Image Sinh()

Returns

Type	Description
Image	A new Image.

Smartcrop(int, int, out int, out int, Interesting?, bool?)

Extract an area from an image.

Declaration

public Image Smartcrop(int width, int height, out int attentionX, out int attentionY, Enums.Interesting? interesting = null, bool? premultiplied = null)

Parameters

Type	Name	Description
int	width	Width of extract area.
int	height	Height of extract area.
int	attentionX	Horizontal position of attention centre.
int	attentionY	Vertical position of attention centre.
Enums.Interesting?	interesting	How to measure interestingness.
bool?	premultiplied	Input image already has premultiplied alpha.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = input.Smartcrop(width, height, out var attentionX, out var attentionY, interesting: Enums.Interesting, premultiplied: bool);

Smartcrop(int, int, out int, Interesting?, bool?)

Extract an area from an image.

Declaration

public Image Smartcrop(int width, int height, out int attentionX, Enums.Interesting? interesting = null, bool? premultiplied = null)

Parameters

Type	Name	Description
int	width	Width of extract area.
int	height	Height of extract area.
int	attentionX	Horizontal position of attention centre.
Enums.Interesting?	interesting	How to measure interestingness.
bool?	premultiplied	Input image already has premultiplied alpha.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = input.Smartcrop(width, height, out var attentionX, interesting: Enums.Interesting, premultiplied: bool);

Smartcrop(int, int, Interesting?, bool?)

Extract an area from an image.

Declaration

public Image Smartcrop(int width, int height, Enums.Interesting? interesting = null, bool? premultiplied = null)

Parameters

Type	Name	Description
int	width	Width of extract area.
int	height	Height of extract area.
Enums.Interesting?	interesting	How to measure interestingness.
bool?	premultiplied	Input image already has premultiplied alpha.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = input.Smartcrop(width, height, interesting: Enums.Interesting, premultiplied: bool);

Sobel()

Sobel edge detector.

Declaration

public Image Sobel()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Sobel();

Spcor(Image)

Spatial correlation.

Declaration

public Image Spcor(Image @ref)

Parameters

Type	Name	Description
Image	ref	Input reference image.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Spcor(@ref);

Spectrum()

Make displayable power spectrum.

Declaration

public Image Spectrum()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Spectrum();

Stats()

Find many image stats.

Declaration

public Image Stats()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Stats();

Stdif(int, int, double?, double?, double?, double?)

Statistical difference.

Declaration

public Image Stdif(int width, int height, double? s0 = null, double? b = null, double? m0 = null, double? a = null)

Parameters

Type	Name	Description
int	width	Window width in pixels.
int	height	Window height in pixels.
double?	s0	New deviation.
double?	b	Weight of new deviation.
double?	m0	New mean.
double?	a	Weight of new mean.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Stdif(width, height, s0: double, b: double, m0: double, a: double);

Subsample(int, int, bool?)

Subsample an image.

Declaration

public Image Subsample(int xfac, int yfac, bool? point = null)

Parameters

Type	Name	Description
int	xfac	Horizontal subsample factor.
int	yfac	Vertical subsample factor.
bool?	point	Point sample.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = input.Subsample(xfac, yfac, point: bool);

Subtract(Image)

Subtract two images.

Declaration

public Image Subtract(Image right)

Parameters

Type	Name	Description
Image	right	Right-hand image argument.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = left.Subtract(right);

Sum(params Image[])

Sum an array of images.

Declaration

public static Image Sum(params Image[] @in)

Parameters

Type	Name	Description
Image[]	in	Array of input images.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Sum(@in);

Svgload(string, out ForeignFlags, double?, double?, bool?, bool?, Access?, FailOn?, bool?)

Load SVG with rsvg.

Declaration

public static Image Svgload(string filename, out Enums.ForeignFlags flags, double? dpi = null, double? scale = null, bool? unlimited = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
Enums.ForeignFlags	flags	Flags for this file.
double?	dpi	Render at this DPI.
double?	scale	Scale output by this factor.
bool?	unlimited	Allow SVG of any size.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Svgload(filename, out var flags, dpi: double, scale: double, unlimited: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Svgload(string, double?, double?, bool?, bool?, Access?, FailOn?, bool?)

Load SVG with rsvg.

Declaration

public static Image Svgload(string filename, double? dpi = null, double? scale = null, bool? unlimited = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
double?	dpi	Render at this DPI.
double?	scale	Scale output by this factor.
bool?	unlimited	Allow SVG of any size.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Svgload(filename, dpi: double, scale: double, unlimited: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

SvgloadBuffer(byte[], out ForeignFlags, double?, double?, bool?, bool?, Access?, FailOn?, bool?)

Load SVG with rsvg.

Declaration

public static Image SvgloadBuffer(byte[] buffer, out Enums.ForeignFlags flags, double? dpi = null, double? scale = null, bool? unlimited = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
byte[]	buffer	Buffer to load from.
Enums.ForeignFlags	flags	Flags for this file.
double?	dpi	Render at this DPI.
double?	scale	Scale output by this factor.
bool?	unlimited	Allow SVG of any size.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.SvgloadBuffer(buffer, out var flags, dpi: double, scale: double, unlimited: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

SvgloadBuffer(byte[], double?, double?, bool?, bool?, Access?, FailOn?, bool?)

Load SVG with rsvg.

Declaration

public static Image SvgloadBuffer(byte[] buffer, double? dpi = null, double? scale = null, bool? unlimited = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
byte[]	buffer	Buffer to load from.
double?	dpi	Render at this DPI.
double?	scale	Scale output by this factor.
bool?	unlimited	Allow SVG of any size.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.SvgloadBuffer(buffer, dpi: double, scale: double, unlimited: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

SvgloadSource(Source, out ForeignFlags, double?, double?, bool?, bool?, Access?, FailOn?, bool?)

Load svg from source.

Declaration

public static Image SvgloadSource(Source source, out Enums.ForeignFlags flags, double? dpi = null, double? scale = null, bool? unlimited = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Source	source	Source to load from.
Enums.ForeignFlags	flags	Flags for this file.
double?	dpi	Render at this DPI.
double?	scale	Scale output by this factor.
bool?	unlimited	Allow SVG of any size.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.SvgloadSource(source, out var flags, dpi: double, scale: double, unlimited: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

SvgloadSource(Source, double?, double?, bool?, bool?, Access?, FailOn?, bool?)

Load svg from source.

Declaration

public static Image SvgloadSource(Source source, double? dpi = null, double? scale = null, bool? unlimited = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Source	source	Source to load from.
double?	dpi	Render at this DPI.
double?	scale	Scale output by this factor.
bool?	unlimited	Allow SVG of any size.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.SvgloadSource(source, dpi: double, scale: double, unlimited: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

SvgloadStream(Stream, out ForeignFlags, double?, double?, bool?, bool?, Access?, FailOn?, bool?)

Load svg from stream.

Declaration

public static Image SvgloadStream(Stream stream, out Enums.ForeignFlags flags, double? dpi = null, double? scale = null, bool? unlimited = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Stream	stream	Stream to load from.
Enums.ForeignFlags	flags	Flags for this file.
double?	dpi	Render at this DPI.
double?	scale	Scale output by this factor.
bool?	unlimited	Allow SVG of any size.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.SvgloadStream(stream, out var flags, dpi: double, scale: double, unlimited: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

SvgloadStream(Stream, double?, double?, bool?, bool?, Access?, FailOn?, bool?)

Load svg from stream.

Declaration

public static Image SvgloadStream(Stream stream, double? dpi = null, double? scale = null, bool? unlimited = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Stream	stream	Stream to load from.
double?	dpi	Render at this DPI.
double?	scale	Scale output by this factor.
bool?	unlimited	Allow SVG of any size.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.SvgloadStream(stream, dpi: double, scale: double, unlimited: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Switch(params Image[])

Find the index of the first non-zero pixel in tests.

Declaration

public static Image Switch(params Image[] tests)

Parameters

Type	Name	Description
Image[]	tests	Table of images to test.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Switch(tests);

System(string, out Image, Image[], string, string)

Run an external command.

Declaration

public static void System(string cmdFormat, out Image @out, Image[] @in = null, string outFormat = null, string inFormat = null)

Parameters

Type	Name	Description
string	cmdFormat	Command to run.
Image	out	Output image.
Image[]	in	Array of input images.
string	outFormat	Format for output filename.
string	inFormat	Format for input filename.

Examples

NetVips.Image.System(cmdFormat, out var @out, @in: Image[], outFormat: string, inFormat: string);

System(string, out Image, out string, Image[], string, string)

Run an external command.

Declaration

public static void System(string cmdFormat, out Image @out, out string log, Image[] @in = null, string outFormat = null, string inFormat = null)

Parameters

Type	Name	Description
string	cmdFormat	Command to run.
Image	out	Output image.
string	log	Command log.
Image[]	in	Array of input images.
string	outFormat	Format for output filename.
string	inFormat	Format for input filename.

Examples

NetVips.Image.System(cmdFormat, out var @out, out var log, @in: Image[], outFormat: string, inFormat: string);

System(string, Image[], string, string)

Run an external command.

Declaration

public static void System(string cmdFormat, Image[] @in = null, string outFormat = null, string inFormat = null)

Parameters

Type	Name	Description
string	cmdFormat	Command to run.
Image[]	in	Array of input images.
string	outFormat	Format for output filename.
string	inFormat	Format for input filename.

Examples

NetVips.Image.System(cmdFormat, @in: Image[], outFormat: string, inFormat: string);

Tan()

Return the tangent of an image in degrees.

Declaration

public Image Tan()

Returns

Type	Description
Image	A new Image.

Tanh()

Return the hyperbolic tangent of an image in radians.

Declaration

public Image Tanh()

Returns

Type	Description
Image	A new Image.

Text(string, out int, string, int?, int?, Align?, bool?, int?, int?, string, bool?, TextWrap?)

Make a text image.

Declaration

public static Image Text(string text, out int autofitDpi, string font = null, int? width = null, int? height = null, Enums.Align? align = null, bool? justify = null, int? dpi = null, int? spacing = null, string fontfile = null, bool? rgba = null, Enums.TextWrap? wrap = null)

Parameters

Type	Name	Description
string	text	Text to render.
int	autofitDpi	DPI selected by autofit.
string	font	Font to render with.
int?	width	Maximum image width in pixels.
int?	height	Maximum image height in pixels.
Enums.Align?	align	Align on the low, centre or high edge.
bool?	justify	Justify lines.
int?	dpi	DPI to render at.
int?	spacing	Line spacing.
string	fontfile	Load this font file.
bool?	rgba	Enable RGBA output.
Enums.TextWrap?	wrap	Wrap lines on word or character boundaries.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Text(text, out var autofitDpi, font: string, width: int, height: int, align: Enums.Align, justify: bool, dpi: int, spacing: int, fontfile: string, rgba: bool, wrap: Enums.TextWrap);

Text(string, string, int?, int?, Align?, bool?, int?, int?, string, bool?, TextWrap?)

Make a text image.

Declaration

public static Image Text(string text, string font = null, int? width = null, int? height = null, Enums.Align? align = null, bool? justify = null, int? dpi = null, int? spacing = null, string fontfile = null, bool? rgba = null, Enums.TextWrap? wrap = null)

Parameters

Type	Name	Description
string	text	Text to render.
string	font	Font to render with.
int?	width	Maximum image width in pixels.
int?	height	Maximum image height in pixels.
Enums.Align?	align	Align on the low, centre or high edge.
bool?	justify	Justify lines.
int?	dpi	DPI to render at.
int?	spacing	Line spacing.
string	fontfile	Load this font file.
bool?	rgba	Enable RGBA output.
Enums.TextWrap?	wrap	Wrap lines on word or character boundaries.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Text(text, font: string, width: int, height: int, align: Enums.Align, justify: bool, dpi: int, spacing: int, fontfile: string, rgba: bool, wrap: Enums.TextWrap);

Thumbnail(string, int, int?, Size?, bool?, Interesting?, bool?, string, string, Intent?, FailOn?)

Generate thumbnail from file.

Declaration

public static Image Thumbnail(string filename, int width, int? height = null, Enums.Size? size = null, bool? noRotate = null, Enums.Interesting? crop = null, bool? linear = null, string importProfile = null, string exportProfile = null, Enums.Intent? intent = null, Enums.FailOn? failOn = null)

Parameters

Type	Name	Description
string	filename	Filename to read from.
int	width	Size to this width.
int?	height	Size to this height.
Enums.Size?	size	Only upsize, only downsize, or both.
bool?	noRotate	Don't use orientation tags to rotate image upright.
Enums.Interesting?	crop	Reduce to fill target rectangle, then crop.
bool?	linear	Reduce in linear light.
string	importProfile	Fallback import profile.
string	exportProfile	Fallback export profile.
Enums.Intent?	intent	Rendering intent.
Enums.FailOn?	failOn	Error level to fail on.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Thumbnail(filename, width, height: int, size: Enums.Size, noRotate: bool, crop: Enums.Interesting, linear: bool, importProfile: string, exportProfile: string, intent: Enums.Intent, failOn: Enums.FailOn);

ThumbnailBuffer(byte[], int, string, int?, Size?, bool?, Interesting?, bool?, string, string, Intent?, FailOn?)

Generate thumbnail from buffer.

Declaration

public static Image ThumbnailBuffer(byte[] buffer, int width, string optionString = null, int? height = null, Enums.Size? size = null, bool? noRotate = null, Enums.Interesting? crop = null, bool? linear = null, string importProfile = null, string exportProfile = null, Enums.Intent? intent = null, Enums.FailOn? failOn = null)

Parameters

Type	Name	Description
byte[]	buffer	Buffer to load from.
int	width	Size to this width.
string	optionString	Options that are passed on to the underlying loader.
int?	height	Size to this height.
Enums.Size?	size	Only upsize, only downsize, or both.
bool?	noRotate	Don't use orientation tags to rotate image upright.
Enums.Interesting?	crop	Reduce to fill target rectangle, then crop.
bool?	linear	Reduce in linear light.
string	importProfile	Fallback import profile.
string	exportProfile	Fallback export profile.
Enums.Intent?	intent	Rendering intent.
Enums.FailOn?	failOn	Error level to fail on.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.ThumbnailBuffer(buffer, width, optionString: string, height: int, size: Enums.Size, noRotate: bool, crop: Enums.Interesting, linear: bool, importProfile: string, exportProfile: string, intent: Enums.Intent, failOn: Enums.FailOn);

ThumbnailImage(int, int?, Size?, bool?, Interesting?, bool?, string, string, Intent?, FailOn?)

Generate thumbnail from image.

Declaration

public Image ThumbnailImage(int width, int? height = null, Enums.Size? size = null, bool? noRotate = null, Enums.Interesting? crop = null, bool? linear = null, string importProfile = null, string exportProfile = null, Enums.Intent? intent = null, Enums.FailOn? failOn = null)

Parameters

Type	Name	Description
int	width	Size to this width.
int?	height	Size to this height.
Enums.Size?	size	Only upsize, only downsize, or both.
bool?	noRotate	Don't use orientation tags to rotate image upright.
Enums.Interesting?	crop	Reduce to fill target rectangle, then crop.
bool?	linear	Reduce in linear light.
string	importProfile	Fallback import profile.
string	exportProfile	Fallback export profile.
Enums.Intent?	intent	Rendering intent.
Enums.FailOn?	failOn	Error level to fail on.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.ThumbnailImage(width, height: int, size: Enums.Size, noRotate: bool, crop: Enums.Interesting, linear: bool, importProfile: string, exportProfile: string, intent: Enums.Intent, failOn: Enums.FailOn);

ThumbnailSource(Source, int, string, int?, Size?, bool?, Interesting?, bool?, string, string, Intent?, FailOn?)

Generate thumbnail from source.

Declaration

public static Image ThumbnailSource(Source source, int width, string optionString = null, int? height = null, Enums.Size? size = null, bool? noRotate = null, Enums.Interesting? crop = null, bool? linear = null, string importProfile = null, string exportProfile = null, Enums.Intent? intent = null, Enums.FailOn? failOn = null)

Parameters

Type	Name	Description
Source	source	Source to load from.
int	width	Size to this width.
string	optionString	Options that are passed on to the underlying loader.
int?	height	Size to this height.
Enums.Size?	size	Only upsize, only downsize, or both.
bool?	noRotate	Don't use orientation tags to rotate image upright.
Enums.Interesting?	crop	Reduce to fill target rectangle, then crop.
bool?	linear	Reduce in linear light.
string	importProfile	Fallback import profile.
string	exportProfile	Fallback export profile.
Enums.Intent?	intent	Rendering intent.
Enums.FailOn?	failOn	Error level to fail on.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.ThumbnailSource(source, width, optionString: string, height: int, size: Enums.Size, noRotate: bool, crop: Enums.Interesting, linear: bool, importProfile: string, exportProfile: string, intent: Enums.Intent, failOn: Enums.FailOn);

ThumbnailStream(Stream, int, string, int?, Size?, bool?, Interesting?, bool?, string, string, Intent?, FailOn?)

Generate thumbnail from stream.

Declaration

public static Image ThumbnailStream(Stream stream, int width, string optionString = null, int? height = null, Enums.Size? size = null, bool? noRotate = null, Enums.Interesting? crop = null, bool? linear = null, string importProfile = null, string exportProfile = null, Enums.Intent? intent = null, Enums.FailOn? failOn = null)

Parameters

Type	Name	Description
Stream	stream	Stream to load from.
int	width	Size to this width.
string	optionString	Options that are passed on to the underlying loader.
int?	height	Size to this height.
Enums.Size?	size	Only upsize, only downsize, or both.
bool?	noRotate	Don't use orientation tags to rotate image upright.
Enums.Interesting?	crop	Reduce to fill target rectangle, then crop.
bool?	linear	Reduce in linear light.
string	importProfile	Fallback import profile.
string	exportProfile	Fallback export profile.
Enums.Intent?	intent	Rendering intent.
Enums.FailOn?	failOn	Error level to fail on.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.ThumbnailStream(stream, width, optionString: string, height: int, size: Enums.Size, noRotate: bool, crop: Enums.Interesting, linear: bool, importProfile: string, exportProfile: string, intent: Enums.Intent, failOn: Enums.FailOn);

Tiffload(string, out ForeignFlags, int?, int?, int?, bool?, bool?, Access?, FailOn?, bool?)

Load tiff from file.

Declaration

public static Image Tiffload(string filename, out Enums.ForeignFlags flags, int? page = null, int? subifd = null, int? n = null, bool? autorotate = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
Enums.ForeignFlags	flags	Flags for this file.
int?	page	First page to load.
int?	subifd	Subifd index.
int?	n	Number of pages to load, -1 for all.
bool?	autorotate	Rotate image using orientation tag.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Tiffload(filename, out var flags, page: int, subifd: int, n: int, autorotate: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Tiffload(string, int?, int?, int?, bool?, bool?, Access?, FailOn?, bool?)

Load tiff from file.

Declaration

public static Image Tiffload(string filename, int? page = null, int? subifd = null, int? n = null, bool? autorotate = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
int?	page	First page to load.
int?	subifd	Subifd index.
int?	n	Number of pages to load, -1 for all.
bool?	autorotate	Rotate image using orientation tag.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Tiffload(filename, page: int, subifd: int, n: int, autorotate: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

TiffloadBuffer(byte[], out ForeignFlags, int?, int?, int?, bool?, bool?, Access?, FailOn?, bool?)

Load tiff from buffer.

Declaration

public static Image TiffloadBuffer(byte[] buffer, out Enums.ForeignFlags flags, int? page = null, int? subifd = null, int? n = null, bool? autorotate = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
byte[]	buffer	Buffer to load from.
Enums.ForeignFlags	flags	Flags for this file.
int?	page	First page to load.
int?	subifd	Subifd index.
int?	n	Number of pages to load, -1 for all.
bool?	autorotate	Rotate image using orientation tag.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.TiffloadBuffer(buffer, out var flags, page: int, subifd: int, n: int, autorotate: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

TiffloadBuffer(byte[], int?, int?, int?, bool?, bool?, Access?, FailOn?, bool?)

Load tiff from buffer.

Declaration

public static Image TiffloadBuffer(byte[] buffer, int? page = null, int? subifd = null, int? n = null, bool? autorotate = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
byte[]	buffer	Buffer to load from.
int?	page	First page to load.
int?	subifd	Subifd index.
int?	n	Number of pages to load, -1 for all.
bool?	autorotate	Rotate image using orientation tag.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.TiffloadBuffer(buffer, page: int, subifd: int, n: int, autorotate: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

TiffloadSource(Source, out ForeignFlags, int?, int?, int?, bool?, bool?, Access?, FailOn?, bool?)

Load tiff from source.

Declaration

public static Image TiffloadSource(Source source, out Enums.ForeignFlags flags, int? page = null, int? subifd = null, int? n = null, bool? autorotate = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Source	source	Source to load from.
Enums.ForeignFlags	flags	Flags for this file.
int?	page	First page to load.
int?	subifd	Subifd index.
int?	n	Number of pages to load, -1 for all.
bool?	autorotate	Rotate image using orientation tag.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.TiffloadSource(source, out var flags, page: int, subifd: int, n: int, autorotate: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

TiffloadSource(Source, int?, int?, int?, bool?, bool?, Access?, FailOn?, bool?)

Load tiff from source.

Declaration

public static Image TiffloadSource(Source source, int? page = null, int? subifd = null, int? n = null, bool? autorotate = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Source	source	Source to load from.
int?	page	First page to load.
int?	subifd	Subifd index.
int?	n	Number of pages to load, -1 for all.
bool?	autorotate	Rotate image using orientation tag.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.TiffloadSource(source, page: int, subifd: int, n: int, autorotate: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

TiffloadStream(Stream, out ForeignFlags, int?, int?, int?, bool?, bool?, Access?, FailOn?, bool?)

Load tiff from stream.

Declaration

public static Image TiffloadStream(Stream stream, out Enums.ForeignFlags flags, int? page = null, int? subifd = null, int? n = null, bool? autorotate = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Stream	stream	Stream to load from.
Enums.ForeignFlags	flags	Flags for this file.
int?	page	First page to load.
int?	subifd	Subifd index.
int?	n	Number of pages to load, -1 for all.
bool?	autorotate	Rotate image using orientation tag.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.TiffloadStream(stream, out var flags, page: int, subifd: int, n: int, autorotate: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

TiffloadStream(Stream, int?, int?, int?, bool?, bool?, Access?, FailOn?, bool?)

Load tiff from stream.

Declaration

public static Image TiffloadStream(Stream stream, int? page = null, int? subifd = null, int? n = null, bool? autorotate = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Stream	stream	Stream to load from.
int?	page	First page to load.
int?	subifd	Subifd index.
int?	n	Number of pages to load, -1 for all.
bool?	autorotate	Rotate image using orientation tag.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.TiffloadStream(stream, page: int, subifd: int, n: int, autorotate: bool, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Tiffsave(string, ForeignTiffCompression?, int?, ForeignTiffPredictor?, bool?, int?, int?, bool?, bool?, int?, ForeignTiffResunit?, double?, double?, bool?, bool?, RegionShrink?, int?, bool?, ForeignDzDepth?, bool?, bool?, ForeignKeep?, double[], int?, string)

Save image to tiff file.

Declaration

public void Tiffsave(string filename, Enums.ForeignTiffCompression? compression = null, int? q = null, Enums.ForeignTiffPredictor? predictor = null, bool? tile = null, int? tileWidth = null, int? tileHeight = null, bool? pyramid = null, bool? miniswhite = null, int? bitdepth = null, Enums.ForeignTiffResunit? resunit = null, double? xres = null, double? yres = null, bool? bigtiff = null, bool? properties = null, Enums.RegionShrink? regionShrink = null, int? level = null, bool? lossless = null, Enums.ForeignDzDepth? depth = null, bool? subifd = null, bool? premultiply = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
string	filename	Filename to save to.
Enums.ForeignTiffCompression?	compression	Compression for this file.
int?	q	Q factor.
Enums.ForeignTiffPredictor?	predictor	Compression prediction.
bool?	tile	Write a tiled tiff.
int?	tileWidth	Tile width in pixels.
int?	tileHeight	Tile height in pixels.
bool?	pyramid	Write a pyramidal tiff.
bool?	miniswhite	Use 0 for white in 1-bit images.
int?	bitdepth	Write as a 1, 2, 4 or 8 bit image.
Enums.ForeignTiffResunit?	resunit	Resolution unit.
double?	xres	Horizontal resolution in pixels/mm.
double?	yres	Vertical resolution in pixels/mm.
bool?	bigtiff	Write a bigtiff image.
bool?	properties	Write a properties document to IMAGEDESCRIPTION.
Enums.RegionShrink?	regionShrink	Method to shrink regions.
int?	level	Deflate (1-9, default 6) or ZSTD (1-22, default 9) compression level.
bool?	lossless	Enable WEBP lossless mode.
Enums.ForeignDzDepth?	depth	Pyramid depth.
bool?	subifd	Save pyr layers as sub-IFDs.
bool?	premultiply	Save with premultiplied alpha.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.Tiffsave(filename, compression: Enums.ForeignTiffCompression, q: int, predictor: Enums.ForeignTiffPredictor, tile: bool, tileWidth: int, tileHeight: int, pyramid: bool, miniswhite: bool, bitdepth: int, resunit: Enums.ForeignTiffResunit, xres: double, yres: double, bigtiff: bool, properties: bool, regionShrink: Enums.RegionShrink, level: int, lossless: bool, depth: Enums.ForeignDzDepth, subifd: bool, premultiply: bool, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

TiffsaveBuffer(ForeignTiffCompression?, int?, ForeignTiffPredictor?, bool?, int?, int?, bool?, bool?, int?, ForeignTiffResunit?, double?, double?, bool?, bool?, RegionShrink?, int?, bool?, ForeignDzDepth?, bool?, bool?, ForeignKeep?, double[], int?, string)

Save image to tiff buffer.

Declaration

public byte[] TiffsaveBuffer(Enums.ForeignTiffCompression? compression = null, int? q = null, Enums.ForeignTiffPredictor? predictor = null, bool? tile = null, int? tileWidth = null, int? tileHeight = null, bool? pyramid = null, bool? miniswhite = null, int? bitdepth = null, Enums.ForeignTiffResunit? resunit = null, double? xres = null, double? yres = null, bool? bigtiff = null, bool? properties = null, Enums.RegionShrink? regionShrink = null, int? level = null, bool? lossless = null, Enums.ForeignDzDepth? depth = null, bool? subifd = null, bool? premultiply = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
Enums.ForeignTiffCompression?	compression	Compression for this file.
int?	q	Q factor.
Enums.ForeignTiffPredictor?	predictor	Compression prediction.
bool?	tile	Write a tiled tiff.
int?	tileWidth	Tile width in pixels.
int?	tileHeight	Tile height in pixels.
bool?	pyramid	Write a pyramidal tiff.
bool?	miniswhite	Use 0 for white in 1-bit images.
int?	bitdepth	Write as a 1, 2, 4 or 8 bit image.
Enums.ForeignTiffResunit?	resunit	Resolution unit.
double?	xres	Horizontal resolution in pixels/mm.
double?	yres	Vertical resolution in pixels/mm.
bool?	bigtiff	Write a bigtiff image.
bool?	properties	Write a properties document to IMAGEDESCRIPTION.
Enums.RegionShrink?	regionShrink	Method to shrink regions.
int?	level	Deflate (1-9, default 6) or ZSTD (1-22, default 9) compression level.
bool?	lossless	Enable WEBP lossless mode.
Enums.ForeignDzDepth?	depth	Pyramid depth.
bool?	subifd	Save pyr layers as sub-IFDs.
bool?	premultiply	Save with premultiplied alpha.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Returns

Type	Description
byte[]	An array of bytes.

Examples

byte[] buffer = in.TiffsaveBuffer(compression: Enums.ForeignTiffCompression, q: int, predictor: Enums.ForeignTiffPredictor, tile: bool, tileWidth: int, tileHeight: int, pyramid: bool, miniswhite: bool, bitdepth: int, resunit: Enums.ForeignTiffResunit, xres: double, yres: double, bigtiff: bool, properties: bool, regionShrink: Enums.RegionShrink, level: int, lossless: bool, depth: Enums.ForeignDzDepth, subifd: bool, premultiply: bool, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

TiffsaveStream(Stream, ForeignTiffCompression?, int?, ForeignTiffPredictor?, bool?, int?, int?, bool?, bool?, int?, ForeignTiffResunit?, double?, double?, bool?, bool?, RegionShrink?, int?, bool?, ForeignDzDepth?, bool?, bool?, ForeignKeep?, double[], int?, string)

Save image to tiff stream.

Declaration

public void TiffsaveStream(Stream stream, Enums.ForeignTiffCompression? compression = null, int? q = null, Enums.ForeignTiffPredictor? predictor = null, bool? tile = null, int? tileWidth = null, int? tileHeight = null, bool? pyramid = null, bool? miniswhite = null, int? bitdepth = null, Enums.ForeignTiffResunit? resunit = null, double? xres = null, double? yres = null, bool? bigtiff = null, bool? properties = null, Enums.RegionShrink? regionShrink = null, int? level = null, bool? lossless = null, Enums.ForeignDzDepth? depth = null, bool? subifd = null, bool? premultiply = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
Stream	stream	Stream to save to.
Enums.ForeignTiffCompression?	compression	Compression for this file.
int?	q	Q factor.
Enums.ForeignTiffPredictor?	predictor	Compression prediction.
bool?	tile	Write a tiled tiff.
int?	tileWidth	Tile width in pixels.
int?	tileHeight	Tile height in pixels.
bool?	pyramid	Write a pyramidal tiff.
bool?	miniswhite	Use 0 for white in 1-bit images.
int?	bitdepth	Write as a 1, 2, 4 or 8 bit image.
Enums.ForeignTiffResunit?	resunit	Resolution unit.
double?	xres	Horizontal resolution in pixels/mm.
double?	yres	Vertical resolution in pixels/mm.
bool?	bigtiff	Write a bigtiff image.
bool?	properties	Write a properties document to IMAGEDESCRIPTION.
Enums.RegionShrink?	regionShrink	Method to shrink regions.
int?	level	Deflate (1-9, default 6) or ZSTD (1-22, default 9) compression level.
bool?	lossless	Enable WEBP lossless mode.
Enums.ForeignDzDepth?	depth	Pyramid depth.
bool?	subifd	Save pyr layers as sub-IFDs.
bool?	premultiply	Save with premultiplied alpha.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.TiffsaveStream(stream, compression: Enums.ForeignTiffCompression, q: int, predictor: Enums.ForeignTiffPredictor, tile: bool, tileWidth: int, tileHeight: int, pyramid: bool, miniswhite: bool, bitdepth: int, resunit: Enums.ForeignTiffResunit, xres: double, yres: double, bigtiff: bool, properties: bool, regionShrink: Enums.RegionShrink, level: int, lossless: bool, depth: Enums.ForeignDzDepth, subifd: bool, premultiply: bool, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

TiffsaveTarget(Target, ForeignTiffCompression?, int?, ForeignTiffPredictor?, bool?, int?, int?, bool?, bool?, int?, ForeignTiffResunit?, double?, double?, bool?, bool?, RegionShrink?, int?, bool?, ForeignDzDepth?, bool?, bool?, ForeignKeep?, double[], int?, string)

Save image to tiff target.

Declaration

public void TiffsaveTarget(Target target, Enums.ForeignTiffCompression? compression = null, int? q = null, Enums.ForeignTiffPredictor? predictor = null, bool? tile = null, int? tileWidth = null, int? tileHeight = null, bool? pyramid = null, bool? miniswhite = null, int? bitdepth = null, Enums.ForeignTiffResunit? resunit = null, double? xres = null, double? yres = null, bool? bigtiff = null, bool? properties = null, Enums.RegionShrink? regionShrink = null, int? level = null, bool? lossless = null, Enums.ForeignDzDepth? depth = null, bool? subifd = null, bool? premultiply = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
Target	target	Target to save to.
Enums.ForeignTiffCompression?	compression	Compression for this file.
int?	q	Q factor.
Enums.ForeignTiffPredictor?	predictor	Compression prediction.
bool?	tile	Write a tiled tiff.
int?	tileWidth	Tile width in pixels.
int?	tileHeight	Tile height in pixels.
bool?	pyramid	Write a pyramidal tiff.
bool?	miniswhite	Use 0 for white in 1-bit images.
int?	bitdepth	Write as a 1, 2, 4 or 8 bit image.
Enums.ForeignTiffResunit?	resunit	Resolution unit.
double?	xres	Horizontal resolution in pixels/mm.
double?	yres	Vertical resolution in pixels/mm.
bool?	bigtiff	Write a bigtiff image.
bool?	properties	Write a properties document to IMAGEDESCRIPTION.
Enums.RegionShrink?	regionShrink	Method to shrink regions.
int?	level	Deflate (1-9, default 6) or ZSTD (1-22, default 9) compression level.
bool?	lossless	Enable WEBP lossless mode.
Enums.ForeignDzDepth?	depth	Pyramid depth.
bool?	subifd	Save pyr layers as sub-IFDs.
bool?	premultiply	Save with premultiplied alpha.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.TiffsaveTarget(target, compression: Enums.ForeignTiffCompression, q: int, predictor: Enums.ForeignTiffPredictor, tile: bool, tileWidth: int, tileHeight: int, pyramid: bool, miniswhite: bool, bitdepth: int, resunit: Enums.ForeignTiffResunit, xres: double, yres: double, bigtiff: bool, properties: bool, regionShrink: Enums.RegionShrink, level: int, lossless: bool, depth: Enums.ForeignDzDepth, subifd: bool, premultiply: bool, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

Tilecache(int?, int?, int?, Access?, bool?, bool?)

Cache an image as a set of tiles.

Declaration

public Image Tilecache(int? tileWidth = null, int? tileHeight = null, int? maxTiles = null, Enums.Access? access = null, bool? threaded = null, bool? persistent = null)

Parameters

Type	Name	Description
int?	tileWidth	Tile width in pixels.
int?	tileHeight	Tile height in pixels.
int?	maxTiles	Maximum number of tiles to cache.
Enums.Access?	access	Expected access pattern.
bool?	threaded	Allow threaded access.
bool?	persistent	Keep cache between evaluations.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Tilecache(tileWidth: int, tileHeight: int, maxTiles: int, access: Enums.Access, threaded: bool, persistent: bool);

ToString()

Returns a string that represents the current image.

Declaration

public override string ToString()

Returns

Type	Description
string	A string that represents the current image.

Overrides

object.ToString()

Tonelut(int?, int?, double?, double?, double?, double?, double?, double?, double?, double?)

Build a look-up table.

Declaration

public static Image Tonelut(int? inMax = null, int? outMax = null, double? lb = null, double? lw = null, double? ps = null, double? pm = null, double? ph = null, double? s = null, double? m = null, double? h = null)

Parameters

Type	Name	Description
int?	inMax	Size of LUT to build.
int?	outMax	Maximum value in output LUT.
double?	lb	Lowest value in output.
double?	lw	Highest value in output.
double?	ps	Position of shadow.
double?	pm	Position of mid-tones.
double?	ph	Position of highlights.
double?	s	Adjust shadows by this much.
double?	m	Adjust mid-tones by this much.
double?	h	Adjust highlights by this much.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Tonelut(inMax: int, outMax: int, lb: double, lw: double, ps: double, pm: double, ph: double, s: double, m: double, h: double);

Transpose3d(int?)

Transpose3d an image.

Declaration

public Image Transpose3d(int? pageHeight = null)

Parameters

Type	Name	Description
int?	pageHeight	Height of each input page.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Transpose3d(pageHeight: int);

Unpremultiply(double?, int?)

Unpremultiply image alpha.

Declaration

public Image Unpremultiply(double? maxAlpha = null, int? alphaBand = null)

Parameters

Type	Name	Description
double?	maxAlpha	Maximum value of alpha channel.
int?	alphaBand	Unpremultiply with this alpha.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Unpremultiply(maxAlpha: double, alphaBand: int);

Vipsload(string, out ForeignFlags, bool?, Access?, FailOn?, bool?)

Load vips from file.

Declaration

public static Image Vipsload(string filename, out Enums.ForeignFlags flags, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
Enums.ForeignFlags	flags	Flags for this file.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Vipsload(filename, out var flags, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Vipsload(string, bool?, Access?, FailOn?, bool?)

Load vips from file.

Declaration

public static Image Vipsload(string filename, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Vipsload(filename, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

VipsloadSource(Source, out ForeignFlags, bool?, Access?, FailOn?, bool?)

Load vips from source.

Declaration

public static Image VipsloadSource(Source source, out Enums.ForeignFlags flags, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Source	source	Source to load from.
Enums.ForeignFlags	flags	Flags for this file.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.VipsloadSource(source, out var flags, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

VipsloadSource(Source, bool?, Access?, FailOn?, bool?)

Load vips from source.

Declaration

public static Image VipsloadSource(Source source, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Source	source	Source to load from.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.VipsloadSource(source, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

VipsloadStream(Stream, out ForeignFlags, bool?, Access?, FailOn?, bool?)

Load vips from stream.

Declaration

public static Image VipsloadStream(Stream stream, out Enums.ForeignFlags flags, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Stream	stream	Stream to load from.
Enums.ForeignFlags	flags	Flags for this file.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.VipsloadStream(stream, out var flags, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

VipsloadStream(Stream, bool?, Access?, FailOn?, bool?)

Load vips from stream.

Declaration

public static Image VipsloadStream(Stream stream, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Stream	stream	Stream to load from.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.VipsloadStream(stream, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Vipssave(string, ForeignKeep?, double[], int?, string)

Save image to file in vips format.

Declaration

public void Vipssave(string filename, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
string	filename	Filename to save to.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.Vipssave(filename, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

VipssaveStream(Stream, ForeignKeep?, double[], int?, string)

Save image to stream in vips format.

Declaration

public void VipssaveStream(Stream stream, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
Stream	stream	Stream to save to.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.VipssaveStream(stream, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

VipssaveTarget(Target, ForeignKeep?, double[], int?, string)

Save image to target in vips format.

Declaration

public void VipssaveTarget(Target target, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
Target	target	Target to save to.
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.VipssaveTarget(target, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

Webpload(string, out ForeignFlags, int?, int?, double?, bool?, Access?, FailOn?, bool?)

Load webp from file.

Declaration

public static Image Webpload(string filename, out Enums.ForeignFlags flags, int? page = null, int? n = null, double? scale = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
Enums.ForeignFlags	flags	Flags for this file.
int?	page	First page to load.
int?	n	Number of pages to load, -1 for all.
double?	scale	Factor to scale by.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Webpload(filename, out var flags, page: int, n: int, scale: double, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Webpload(string, int?, int?, double?, bool?, Access?, FailOn?, bool?)

Load webp from file.

Declaration

public static Image Webpload(string filename, int? page = null, int? n = null, double? scale = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
string	filename	Filename to load from.
int?	page	First page to load.
int?	n	Number of pages to load, -1 for all.
double?	scale	Factor to scale by.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Webpload(filename, page: int, n: int, scale: double, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

WebploadBuffer(byte[], out ForeignFlags, int?, int?, double?, bool?, Access?, FailOn?, bool?)

Load webp from buffer.

Declaration

public static Image WebploadBuffer(byte[] buffer, out Enums.ForeignFlags flags, int? page = null, int? n = null, double? scale = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
byte[]	buffer	Buffer to load from.
Enums.ForeignFlags	flags	Flags for this file.
int?	page	First page to load.
int?	n	Number of pages to load, -1 for all.
double?	scale	Factor to scale by.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.WebploadBuffer(buffer, out var flags, page: int, n: int, scale: double, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

WebploadBuffer(byte[], int?, int?, double?, bool?, Access?, FailOn?, bool?)

Load webp from buffer.

Declaration

public static Image WebploadBuffer(byte[] buffer, int? page = null, int? n = null, double? scale = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
byte[]	buffer	Buffer to load from.
int?	page	First page to load.
int?	n	Number of pages to load, -1 for all.
double?	scale	Factor to scale by.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.WebploadBuffer(buffer, page: int, n: int, scale: double, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

WebploadSource(Source, out ForeignFlags, int?, int?, double?, bool?, Access?, FailOn?, bool?)

Load webp from source.

Declaration

public static Image WebploadSource(Source source, out Enums.ForeignFlags flags, int? page = null, int? n = null, double? scale = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Source	source	Source to load from.
Enums.ForeignFlags	flags	Flags for this file.
int?	page	First page to load.
int?	n	Number of pages to load, -1 for all.
double?	scale	Factor to scale by.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.WebploadSource(source, out var flags, page: int, n: int, scale: double, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

WebploadSource(Source, int?, int?, double?, bool?, Access?, FailOn?, bool?)

Load webp from source.

Declaration

public static Image WebploadSource(Source source, int? page = null, int? n = null, double? scale = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Source	source	Source to load from.
int?	page	First page to load.
int?	n	Number of pages to load, -1 for all.
double?	scale	Factor to scale by.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.WebploadSource(source, page: int, n: int, scale: double, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

WebploadStream(Stream, out ForeignFlags, int?, int?, double?, bool?, Access?, FailOn?, bool?)

Load webp from stream.

Declaration

public static Image WebploadStream(Stream stream, out Enums.ForeignFlags flags, int? page = null, int? n = null, double? scale = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Stream	stream	Stream to load from.
Enums.ForeignFlags	flags	Flags for this file.
int?	page	First page to load.
int?	n	Number of pages to load, -1 for all.
double?	scale	Factor to scale by.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.WebploadStream(stream, out var flags, page: int, n: int, scale: double, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

WebploadStream(Stream, int?, int?, double?, bool?, Access?, FailOn?, bool?)

Load webp from stream.

Declaration

public static Image WebploadStream(Stream stream, int? page = null, int? n = null, double? scale = null, bool? memory = null, Enums.Access? access = null, Enums.FailOn? failOn = null, bool? revalidate = null)

Parameters

Type	Name	Description
Stream	stream	Stream to load from.
int?	page	First page to load.
int?	n	Number of pages to load, -1 for all.
double?	scale	Factor to scale by.
bool?	memory	Force open via memory.
Enums.Access?	access	Required access pattern for this file.
Enums.FailOn?	failOn	Error level to fail on.
bool?	revalidate	Don't use a cached result for this operation.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.WebploadStream(stream, page: int, n: int, scale: double, memory: bool, access: Enums.Access, failOn: Enums.FailOn, revalidate: bool);

Webpsave(string, int?, bool?, ForeignWebpPreset?, bool?, bool?, int?, bool?, int?, int?, int?, int?, bool?, bool?, int?, ForeignKeep?, double[], int?, string)

Save as WebP.

Declaration

public void Webpsave(string filename, int? q = null, bool? lossless = null, Enums.ForeignWebpPreset? preset = null, bool? smartSubsample = null, bool? nearLossless = null, int? alphaQ = null, bool? minSize = null, int? kmin = null, int? kmax = null, int? effort = null, int? targetSize = null, bool? mixed = null, bool? smartDeblock = null, int? passes = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
string	filename	Filename to save to.
int?	q	Q factor.
bool?	lossless	Enable lossless compression.
Enums.ForeignWebpPreset?	preset	Preset for lossy compression.
bool?	smartSubsample	Enable high quality chroma subsampling.
bool?	nearLossless	Enable preprocessing in lossless mode (uses Q).
int?	alphaQ	Change alpha plane fidelity for lossy compression.
bool?	minSize	Optimise for minimum size.
int?	kmin	Minimum number of frames between key frames.
int?	kmax	Maximum number of frames between key frames.
int?	effort	Level of CPU effort to reduce file size.
int?	targetSize	Desired target size in bytes.
bool?	mixed	Allow mixed encoding (might reduce file size).
bool?	smartDeblock	Enable auto-adjusting of the deblocking filter.
int?	passes	Number of entropy-analysis passes (in [1..10]).
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.Webpsave(filename, q: int, lossless: bool, preset: Enums.ForeignWebpPreset, smartSubsample: bool, nearLossless: bool, alphaQ: int, minSize: bool, kmin: int, kmax: int, effort: int, targetSize: int, mixed: bool, smartDeblock: bool, passes: int, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

WebpsaveBuffer(int?, bool?, ForeignWebpPreset?, bool?, bool?, int?, bool?, int?, int?, int?, int?, bool?, bool?, int?, ForeignKeep?, double[], int?, string)

Save as WebP.

Declaration

public byte[] WebpsaveBuffer(int? q = null, bool? lossless = null, Enums.ForeignWebpPreset? preset = null, bool? smartSubsample = null, bool? nearLossless = null, int? alphaQ = null, bool? minSize = null, int? kmin = null, int? kmax = null, int? effort = null, int? targetSize = null, bool? mixed = null, bool? smartDeblock = null, int? passes = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
int?	q	Q factor.
bool?	lossless	Enable lossless compression.
Enums.ForeignWebpPreset?	preset	Preset for lossy compression.
bool?	smartSubsample	Enable high quality chroma subsampling.
bool?	nearLossless	Enable preprocessing in lossless mode (uses Q).
int?	alphaQ	Change alpha plane fidelity for lossy compression.
bool?	minSize	Optimise for minimum size.
int?	kmin	Minimum number of frames between key frames.
int?	kmax	Maximum number of frames between key frames.
int?	effort	Level of CPU effort to reduce file size.
int?	targetSize	Desired target size in bytes.
bool?	mixed	Allow mixed encoding (might reduce file size).
bool?	smartDeblock	Enable auto-adjusting of the deblocking filter.
int?	passes	Number of entropy-analysis passes (in [1..10]).
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Returns

Type	Description
byte[]	An array of bytes.

Examples

byte[] buffer = in.WebpsaveBuffer(q: int, lossless: bool, preset: Enums.ForeignWebpPreset, smartSubsample: bool, nearLossless: bool, alphaQ: int, minSize: bool, kmin: int, kmax: int, effort: int, targetSize: int, mixed: bool, smartDeblock: bool, passes: int, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

WebpsaveMime(int?, bool?, ForeignWebpPreset?, bool?, bool?, int?, bool?, int?, int?, int?, int?, bool?, bool?, int?, ForeignKeep?, double[], int?, string)

Save image to webp mime.

Declaration

public void WebpsaveMime(int? q = null, bool? lossless = null, Enums.ForeignWebpPreset? preset = null, bool? smartSubsample = null, bool? nearLossless = null, int? alphaQ = null, bool? minSize = null, int? kmin = null, int? kmax = null, int? effort = null, int? targetSize = null, bool? mixed = null, bool? smartDeblock = null, int? passes = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
int?	q	Q factor.
bool?	lossless	Enable lossless compression.
Enums.ForeignWebpPreset?	preset	Preset for lossy compression.
bool?	smartSubsample	Enable high quality chroma subsampling.
bool?	nearLossless	Enable preprocessing in lossless mode (uses Q).
int?	alphaQ	Change alpha plane fidelity for lossy compression.
bool?	minSize	Optimise for minimum size.
int?	kmin	Minimum number of frames between key frames.
int?	kmax	Maximum number of frames between key frames.
int?	effort	Level of CPU effort to reduce file size.
int?	targetSize	Desired target size in bytes.
bool?	mixed	Allow mixed encoding (might reduce file size).
bool?	smartDeblock	Enable auto-adjusting of the deblocking filter.
int?	passes	Number of entropy-analysis passes (in [1..10]).
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.WebpsaveMime(q: int, lossless: bool, preset: Enums.ForeignWebpPreset, smartSubsample: bool, nearLossless: bool, alphaQ: int, minSize: bool, kmin: int, kmax: int, effort: int, targetSize: int, mixed: bool, smartDeblock: bool, passes: int, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

WebpsaveStream(Stream, int?, bool?, ForeignWebpPreset?, bool?, bool?, int?, bool?, int?, int?, int?, int?, bool?, bool?, int?, ForeignKeep?, double[], int?, string)

Save as WebP.

Declaration

public void WebpsaveStream(Stream stream, int? q = null, bool? lossless = null, Enums.ForeignWebpPreset? preset = null, bool? smartSubsample = null, bool? nearLossless = null, int? alphaQ = null, bool? minSize = null, int? kmin = null, int? kmax = null, int? effort = null, int? targetSize = null, bool? mixed = null, bool? smartDeblock = null, int? passes = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
Stream	stream	Stream to save to.
int?	q	Q factor.
bool?	lossless	Enable lossless compression.
Enums.ForeignWebpPreset?	preset	Preset for lossy compression.
bool?	smartSubsample	Enable high quality chroma subsampling.
bool?	nearLossless	Enable preprocessing in lossless mode (uses Q).
int?	alphaQ	Change alpha plane fidelity for lossy compression.
bool?	minSize	Optimise for minimum size.
int?	kmin	Minimum number of frames between key frames.
int?	kmax	Maximum number of frames between key frames.
int?	effort	Level of CPU effort to reduce file size.
int?	targetSize	Desired target size in bytes.
bool?	mixed	Allow mixed encoding (might reduce file size).
bool?	smartDeblock	Enable auto-adjusting of the deblocking filter.
int?	passes	Number of entropy-analysis passes (in [1..10]).
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.WebpsaveStream(stream, q: int, lossless: bool, preset: Enums.ForeignWebpPreset, smartSubsample: bool, nearLossless: bool, alphaQ: int, minSize: bool, kmin: int, kmax: int, effort: int, targetSize: int, mixed: bool, smartDeblock: bool, passes: int, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

WebpsaveTarget(Target, int?, bool?, ForeignWebpPreset?, bool?, bool?, int?, bool?, int?, int?, int?, int?, bool?, bool?, int?, ForeignKeep?, double[], int?, string)

Save as WebP.

Declaration

public void WebpsaveTarget(Target target, int? q = null, bool? lossless = null, Enums.ForeignWebpPreset? preset = null, bool? smartSubsample = null, bool? nearLossless = null, int? alphaQ = null, bool? minSize = null, int? kmin = null, int? kmax = null, int? effort = null, int? targetSize = null, bool? mixed = null, bool? smartDeblock = null, int? passes = null, Enums.ForeignKeep? keep = null, double[] background = null, int? pageHeight = null, string profile = null)

Parameters

Type	Name	Description
Target	target	Target to save to.
int?	q	Q factor.
bool?	lossless	Enable lossless compression.
Enums.ForeignWebpPreset?	preset	Preset for lossy compression.
bool?	smartSubsample	Enable high quality chroma subsampling.
bool?	nearLossless	Enable preprocessing in lossless mode (uses Q).
int?	alphaQ	Change alpha plane fidelity for lossy compression.
bool?	minSize	Optimise for minimum size.
int?	kmin	Minimum number of frames between key frames.
int?	kmax	Maximum number of frames between key frames.
int?	effort	Level of CPU effort to reduce file size.
int?	targetSize	Desired target size in bytes.
bool?	mixed	Allow mixed encoding (might reduce file size).
bool?	smartDeblock	Enable auto-adjusting of the deblocking filter.
int?	passes	Number of entropy-analysis passes (in [1..10]).
Enums.ForeignKeep?	keep	Which metadata to retain.
double[]	background	Background value.
int?	pageHeight	Set page height for multipage save.
string	profile	Filename of ICC profile to embed.

Examples

in.WebpsaveTarget(target, q: int, lossless: bool, preset: Enums.ForeignWebpPreset, smartSubsample: bool, nearLossless: bool, alphaQ: int, minSize: bool, kmin: int, kmax: int, effort: int, targetSize: int, mixed: bool, smartDeblock: bool, passes: int, keep: Enums.ForeignKeep, background: double[], pageHeight: int, profile: string);

Wop(Image)

Raise to power of an image, but with the arguments reversed.

Declaration

public Image Wop(Image @base)

Parameters

Type	Name	Description
Image	base	To the base of this.

Returns

Type	Description
Image	A new Image.

Wop(double)

Raise to power of an constant, but with the arguments reversed.

Declaration

public Image Wop(double @base)

Parameters

Type	Name	Description
double	base	To the base of this.

Returns

Type	Description
Image	A new Image.

Wop(double[])

Raise to power of an array, but with the arguments reversed.

Declaration

public Image Wop(double[] @base)

Parameters

Type	Name	Description
double[]	base	To the base of this.

Returns

Type	Description
Image	A new Image.

Wop(int[])

Raise to power of an array, but with the arguments reversed.

Declaration

public Image Wop(int[] @base)

Parameters

Type	Name	Description
int[]	base	To the base of this.

Returns

Type	Description
Image	A new Image.

Worley(int, int, int?, int?)

Make a worley noise image.

Declaration

public static Image Worley(int width, int height, int? cellSize = null, int? seed = null)

Parameters

Type	Name	Description
int	width	Image width in pixels.
int	height	Image height in pixels.
int?	cellSize	Size of Worley cells.
int?	seed	Random number seed.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Worley(width, height, cellSize: int, seed: int);

Wrap(int?, int?)

Wrap image origin.

Declaration

public Image Wrap(int? x = null, int? y = null)

Parameters

Type	Name	Description
int?	x	Left edge of input in output.
int?	y	Top edge of input in output.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Wrap(x: int, y: int);

Write(Image)

Write an image to another image.

Declaration

public void Write(Image other)

Parameters

Type	Name	Description
Image	other	The Image to write to.

Remarks

This function writes this to another image. Use something like NewTempFile(string) to make an image that can be written to.

Exceptions

Type	Condition
VipsException	If unable to write to image.

WriteToBuffer(string, VOption)

Write an image to a formatted string.

Declaration

public byte[] WriteToBuffer(string formatString, VOption kwargs = null)

Parameters

Type	Name	Description
string	formatString	The suffix, plus any string-form arguments.
VOption	kwargs	Optional options that depend on the save operation.

Returns

Type	Description
byte[]	An array of bytes.

Remarks

This method can save images in any format supported by vips. The format is selected from the suffix in the format string. This can include embedded save options, see NewFromFile(string, bool?, Access?, FailOn?, VOption).

For example:

var data = image.WriteToBuffer(".jpg[Q=95]");

You can also supply options as keyword arguments, for example:

var data = image.WriteToBuffer(".jpg", new VOption
{
    {"Q", 95}
});

The full set of options available depend upon the load operation that will be executed. Try something like:

$ vips jpegsave_buffer

at the command-line to see a summary of the available options for the JPEG saver.

Exceptions

Type	Condition
VipsException	If unable to write to buffer.

WriteToFile(string, VOption)

Write an image to a file on disc.

Declaration

public void WriteToFile(string vipsFilename, VOption kwargs = null)

Parameters

Type	Name	Description
string	vipsFilename	The disc file to save the image to, with optional appended arguments.
VOption	kwargs	Optional options that depend on the save operation.

Remarks

This method can save images in any format supported by vips. The format is selected from the filename suffix. The filename can include embedded save options, see NewFromFile(string, bool?, Access?, FailOn?, VOption).

For example:

image.WriteToFile("fred.jpg[Q=95]");

You can also supply options as keyword arguments, for example:

image.WriteToFile("fred.jpg", new VOption
{
    {"Q", 95}
});

The full set of options available depend upon the save operation that will be executed. Try something like:

$ vips jpegsave

at the command-line to see a summary of the available options for the JPEG saver.

Exceptions

Type	Condition
VipsException	If unable to write to vipsFilename.

WriteToMemory()

Write the image to a large memory array.

Declaration

public byte[] WriteToMemory()

Returns

Type	Description
byte[]	An array of bytes.

Remarks

A large area of memory is allocated, the image is rendered to that memory array, and the array is returned as a buffer.

For example, if you have a 2x2 uchar image containing the bytes 1, 2, 3, 4, read left-to-right, top-to-bottom, then:

var buf = image.WriteToMemory();

will return a four byte buffer containing the values 1, 2, 3, 4.

Exceptions

Type	Condition
VipsException	If unable to write to memory.

WriteToMemory(out ulong)

Write the image to memory as a simple, unformatted C-style array.

Declaration

public nint WriteToMemory(out ulong size)

Parameters

Type	Name	Description
ulong	size	Output buffer length.

Returns

Type	Description
nint	A nint pointing to an unformatted C-style array.

Remarks

The caller is responsible for freeing this memory with Free(nint).

Exceptions

Type	Condition
VipsException	If unable to write to memory.

WriteToStream(Stream, string, VOption)

Write an image to a stream.

Declaration

public void WriteToStream(Stream stream, string formatString, VOption kwargs = null)

Parameters

Type	Name	Description
Stream	stream	Write to this stream.
string	formatString	The suffix, plus any string-form arguments.
VOption	kwargs	Optional options that depend on the save operation.

Remarks

This behaves exactly as WriteToTarget(Target, string, VOption), but the image is written to a stream rather than a target. At least libvips 8.9 is needed.

Exceptions

Type	Condition
VipsException	If unable to write to stream.

WriteToTarget(Target, string, VOption)

Write an image to a target.

Declaration

public void WriteToTarget(Target target, string formatString, VOption kwargs = null)

Parameters

Type	Name	Description
Target	target	Write to this target.
string	formatString	The suffix, plus any string-form arguments.
VOption	kwargs	Optional options that depend on the save operation.

Remarks

This behaves exactly as WriteToFile(string, VOption), but the image is written to a target rather than a file. At least libvips 8.9 is needed.

Exceptions

Type	Condition
VipsException	If unable to write to target.

XYZ2CMYK()

Transform XYZ to CMYK.

Declaration

public Image XYZ2CMYK()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.XYZ2CMYK();

XYZ2Lab(double[])

Transform XYZ to Lab.

Declaration

public Image XYZ2Lab(double[] temp = null)

Parameters

Type	Name	Description
double[]	temp	Colour temperature.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.XYZ2Lab(temp: double[]);

XYZ2Yxy()

Transform XYZ to Yxy.

Declaration

public Image XYZ2Yxy()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.XYZ2Yxy();

XYZ2scRGB()

Transform XYZ to scRGB.

Declaration

public Image XYZ2scRGB()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.XYZ2scRGB();

Xyz(int, int, int?, int?, int?)

Make an image where pixel values are coordinates.

Declaration

public static Image Xyz(int width, int height, int? csize = null, int? dsize = null, int? esize = null)

Parameters

Type	Name	Description
int	width	Image width in pixels.
int	height	Image height in pixels.
int?	csize	Size of third dimension.
int?	dsize	Size of fourth dimension.
int?	esize	Size of fifth dimension.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Xyz(width, height, csize: int, dsize: int, esize: int);

Yxy2XYZ()

Transform Yxy to XYZ.

Declaration

public Image Yxy2XYZ()

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = in.Yxy2XYZ();

Zone(int, int, bool?)

Make a zone plate.

Declaration

public static Image Zone(int width, int height, bool? uchar = null)

Parameters

Type	Name	Description
int	width	Image width in pixels.
int	height	Image height in pixels.
bool?	uchar	Output an unsigned char image.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = NetVips.Image.Zone(width, height, uchar: bool);

Zoom(int, int)

Zoom an image.

Declaration

public Image Zoom(int xfac, int yfac)

Parameters

Type	Name	Description
int	xfac	Horizontal zoom factor.
int	yfac	Vertical zoom factor.

Returns

Type	Description
Image	A new Image.

Examples

using Image @out = input.Zoom(xfac, yfac);

Operators

operator +(Image, Image)

This operation calculates left + right.

Declaration

public static Image operator +(Image left, Image right)

Parameters

Type	Name	Description
Image	left	Left Image.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator +(Image, double)

This operation calculates left + right.

Declaration

public static Image operator +(Image left, double right)

Parameters

Type	Name	Description
Image	left	Left Image.
double	right	Right double constant.

Returns

Type	Description
Image	A new Image.

operator +(Image, double[])

This operation calculates left + right.

Declaration

public static Image operator +(Image left, double[] right)

Parameters

Type	Name	Description
Image	left	Left Image.
double[]	right	Right double array.

Returns

Type	Description
Image	A new Image.

operator +(Image, int[])

This operation calculates left + right.

Declaration

public static Image operator +(Image left, int[] right)

Parameters

Type	Name	Description
Image	left	Left Image.
int[]	right	Right integer array.

Returns

Type	Description
Image	A new Image.

operator +(double, Image)

This operation calculates left + right.

Declaration

public static Image operator +(double left, Image right)

Parameters

Type	Name	Description
double	left	Left double constant.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator +(double[], Image)

This operation calculates left + right.

Declaration

public static Image operator +(double[] left, Image right)

Parameters

Type	Name	Description
double[]	left	Left double array.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator +(int[], Image)

This operation calculates left + right.

Declaration

public static Image operator +(int[] left, Image right)

Parameters

Type	Name	Description
int[]	left	Left integer array.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator &(Image, Image)

This operation computes the logical bitwise AND of its operands.

Declaration

public static Image operator &(Image left, Image right)

Parameters

Type	Name	Description
Image	left	Left Image.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator &(Image, double)

This operation computes the logical bitwise AND of its operands.

Declaration

public static Image operator &(Image left, double right)

Parameters

Type	Name	Description
Image	left	Left Image.
double	right	Right double constant.

Returns

Type	Description
Image	A new Image.

operator &(Image, double[])

This operation computes the logical bitwise AND of its operands.

Declaration

public static Image operator &(Image left, double[] right)

Parameters

Type	Name	Description
Image	left	Left Image.
double[]	right	Right double array.

Returns

Type	Description
Image	A new Image.

operator &(Image, int[])

This operation computes the logical bitwise AND of its operands.

Declaration

public static Image operator &(Image left, int[] right)

Parameters

Type	Name	Description
Image	left	Left Image.
int[]	right	Right integer array.

Returns

Type	Description
Image	A new Image.

operator &(double, Image)

This operation computes the logical bitwise AND of its operands.

Declaration

public static Image operator &(double left, Image right)

Parameters

Type	Name	Description
double	left	Left double constant.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator &(double[], Image)

This operation computes the logical bitwise AND of its operands.

Declaration

public static Image operator &(double[] left, Image right)

Parameters

Type	Name	Description
double[]	left	Left double array.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator &(int[], Image)

This operation computes the logical bitwise AND of its operands.

Declaration

public static Image operator &(int[] left, Image right)

Parameters

Type	Name	Description
int[]	left	Left integer array.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator |(Image, Image)

This operation computes the bitwise OR of its operands.

Declaration

public static Image operator |(Image left, Image right)

Parameters

Type	Name	Description
Image	left	Left Image.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator |(Image, double)

This operation computes the bitwise OR of its operands.

Declaration

public static Image operator |(Image left, double right)

Parameters

Type	Name	Description
Image	left	Left Image.
double	right	Right double constant.

Returns

Type	Description
Image	A new Image.

operator |(Image, double[])

This operation computes the bitwise OR of its operands.

Declaration

public static Image operator |(Image left, double[] right)

Parameters

Type	Name	Description
Image	left	Left Image.
double[]	right	Right double array.

Returns

Type	Description
Image	A new Image.

operator |(Image, int[])

This operation computes the bitwise OR of its operands.

Declaration

public static Image operator |(Image left, int[] right)

Parameters

Type	Name	Description
Image	left	Left Image.
int[]	right	Right integer array.

Returns

Type	Description
Image	A new Image.

operator |(double, Image)

This operation computes the bitwise OR of its operands.

Declaration

public static Image operator |(double left, Image right)

Parameters

Type	Name	Description
double	left	Left double constant.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator |(double[], Image)

This operation computes the bitwise OR of its operands.

Declaration

public static Image operator |(double[] left, Image right)

Parameters

Type	Name	Description
double[]	left	Left double array.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator |(int[], Image)

This operation computes the bitwise OR of its operands.

Declaration

public static Image operator |(int[] left, Image right)

Parameters

Type	Name	Description
int[]	left	Left integer array.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator /(Image, Image)

This operation calculates left / right.

Declaration

public static Image operator /(Image left, Image right)

Parameters

Type	Name	Description
Image	left	Left Image.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator /(Image, double)

This operation calculates left / right.

Declaration

public static Image operator /(Image left, double right)

Parameters

Type	Name	Description
Image	left	Left Image.
double	right	Right double constant.

Returns

Type	Description
Image	A new Image.

operator /(Image, double[])

This operation calculates left / right.

Declaration

public static Image operator /(Image left, double[] right)

Parameters

Type	Name	Description
Image	left	Left Image.
double[]	right	Right double array.

Returns

Type	Description
Image	A new Image.

operator /(Image, int[])

This operation calculates left / right.

Declaration

public static Image operator /(Image left, int[] right)

Parameters

Type	Name	Description
Image	left	Left Image.
int[]	right	Right integer array.

Returns

Type	Description
Image	A new Image.

operator /(double, Image)

This operation calculates left / right.

Declaration

public static Image operator /(double left, Image right)

Parameters

Type	Name	Description
double	left	Left double constant.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator /(double[], Image)

This operation calculates left / right.

Declaration

public static Image operator /(double[] left, Image right)

Parameters

Type	Name	Description
double[]	left	Left double array.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator /(int[], Image)

This operation calculates left / right.

Declaration

public static Image operator /(int[] left, Image right)

Parameters

Type	Name	Description
int[]	left	Left integer array.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator ==(double, Image)

This operation compares two images on equality.

Declaration

public static Image operator ==(double left, Image right)

Parameters

Type	Name	Description
double	left	Left double constant to compare.
Image	right	Right Image to compare.

Returns

Type	Description
Image	A new Image.

operator ==(double[], Image)

This operation compares two images on equality.

Declaration

public static Image operator ==(double[] left, Image right)

Parameters

Type	Name	Description
double[]	left	Left double array to compare.
Image	right	Right Image to compare.

Returns

Type	Description
Image	A new Image.

operator ==(int[], Image)

This operation compares two images on equality.

Declaration

public static Image operator ==(int[] left, Image right)

Parameters

Type	Name	Description
int[]	left	Left integer array to compare.
Image	right	Right Image to compare.

Returns

Type	Description
Image	A new Image.

operator ^(Image, Image)

This operation computes the bitwise exclusive-OR of its operands.

Declaration

public static Image operator ^(Image left, Image right)

Parameters

Type	Name	Description
Image	left	Left Image.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator ^(Image, double)

This operation computes the bitwise exclusive-OR of its operands.

Declaration

public static Image operator ^(Image left, double right)

Parameters

Type	Name	Description
Image	left	Left Image.
double	right	Right double constant.

Returns

Type	Description
Image	A new Image.

operator ^(Image, double[])

This operation computes the bitwise exclusive-OR of its operands.

Declaration

public static Image operator ^(Image left, double[] right)

Parameters

Type	Name	Description
Image	left	Left Image.
double[]	right	Right double array.

Returns

Type	Description
Image	A new Image.

operator ^(Image, int[])

This operation computes the bitwise exclusive-OR of its operands.

Declaration

public static Image operator ^(Image left, int[] right)

Parameters

Type	Name	Description
Image	left	Left Image.
int[]	right	Right integer array.

Returns

Type	Description
Image	A new Image.

operator ^(double, Image)

This operation computes the bitwise exclusive-OR of its operands.

Declaration

public static Image operator ^(double left, Image right)

Parameters

Type	Name	Description
double	left	Left double constant.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator ^(double[], Image)

This operation computes the bitwise exclusive-OR of its operands.

Declaration

public static Image operator ^(double[] left, Image right)

Parameters

Type	Name	Description
double[]	left	Left double array.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator ^(int[], Image)

This operation computes the bitwise exclusive-OR of its operands.

Declaration

public static Image operator ^(int[] left, Image right)

Parameters

Type	Name	Description
int[]	left	Left integer array.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator false(Image)

Returns a value indicating whether a given Image is definitely false.

Declaration

public static bool operator false(Image image)

Parameters

Type	Name	Description
Image	image	The image to check.

Returns

Type	Description
bool	true if image is definitely false; otherwise, false.

operator >(Image, Image)

This operation compares if the left operand is greater than the right operand.

Declaration

public static Image operator >(Image left, Image right)

Parameters

Type	Name	Description
Image	left	Left Image.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator >(Image, double)

This operation compares if the left operand is greater than the right operand.

Declaration

public static Image operator >(Image left, double right)

Parameters

Type	Name	Description
Image	left	Left Image.
double	right	Right double constant.

Returns

Type	Description
Image	A new Image.

operator >(Image, double[])

This operation compares if the left operand is greater than the right operand.

Declaration

public static Image operator >(Image left, double[] right)

Parameters

Type	Name	Description
Image	left	Left Image.
double[]	right	Right double array.

Returns

Type	Description
Image	A new Image.

operator >(Image, int[])

This operation compares if the left operand is greater than the right operand.

Declaration

public static Image operator >(Image left, int[] right)

Parameters

Type	Name	Description
Image	left	Left Image.
int[]	right	Right integer array.

Returns

Type	Description
Image	A new Image.

operator >(double, Image)

This operation compares if the left operand is greater than the right operand.

Declaration

public static Image operator >(double left, Image right)

Parameters

Type	Name	Description
double	left	Left double constant.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator >(double[], Image)

This operation compares if the left operand is greater than the right operand.

Declaration

public static Image operator >(double[] left, Image right)

Parameters

Type	Name	Description
double[]	left	Left double array.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator >(int[], Image)

This operation compares if the left operand is greater than the right operand.

Declaration

public static Image operator >(int[] left, Image right)

Parameters

Type	Name	Description
int[]	left	Left integer array.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator >=(Image, Image)

This operation compares if the left operand is greater than or equal to the right operand.

Declaration

public static Image operator >=(Image left, Image right)

Parameters

Type	Name	Description
Image	left	Left Image.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator >=(Image, double)

This operation compares if the left operand is greater than or equal to the right operand.

Declaration

public static Image operator >=(Image left, double right)

Parameters

Type	Name	Description
Image	left	Left Image.
double	right	Right double constant.

Returns

Type	Description
Image	A new Image.

operator >=(Image, double[])

This operation compares if the left operand is greater than or equal to the right operand.

Declaration

public static Image operator >=(Image left, double[] right)

Parameters

Type	Name	Description
Image	left	Left Image.
double[]	right	Right double array.

Returns

Type	Description
Image	A new Image.

operator >=(Image, int[])

This operation compares if the left operand is greater than or equal to the right operand.

Declaration

public static Image operator >=(Image left, int[] right)

Parameters

Type	Name	Description
Image	left	Left Image.
int[]	right	Right integer array.

Returns

Type	Description
Image	A new Image.

operator >=(double, Image)

This operation compares if the left operand is greater than or equal to the right operand.

Declaration

public static Image operator >=(double left, Image right)

Parameters

Type	Name	Description
double	left	Left double constant.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator >=(double[], Image)

This operation compares if the left operand is greater than or equal to the right operand.

Declaration

public static Image operator >=(double[] left, Image right)

Parameters

Type	Name	Description
double[]	left	Left double array.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator >=(int[], Image)

This operation compares if the left operand is greater than or equal to the right operand.

Declaration

public static Image operator >=(int[] left, Image right)

Parameters

Type	Name	Description
int[]	left	Left integer array.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator !=(double, Image)

This operation compares two images on inequality.

Declaration

public static Image operator !=(double left, Image right)

Parameters

Type	Name	Description
double	left	Left double constant to compare.
Image	right	Right Image to compare.

Returns

Type	Description
Image	A new Image.

operator !=(double[], Image)

This operation compares two images on inequality.

Declaration

public static Image operator !=(double[] left, Image right)

Parameters

Type	Name	Description
double[]	left	Left double array to compare.
Image	right	Right Image to compare.

Returns

Type	Description
Image	A new Image.

operator !=(int[], Image)

This operation compares two images on inequality.

Declaration

public static Image operator !=(int[] left, Image right)

Parameters

Type	Name	Description
int[]	left	Left integer array to compare.
Image	right	Right Image to compare.

Returns

Type	Description
Image	A new Image.

operator <<(Image, int)

This operation shifts its first operand left by the number of bits specified by its second operand.

Declaration

public static Image operator <<(Image left, int right)

Parameters

Type	Name	Description
Image	left	Left Image.
int	right	The number of bits.

Returns

Type	Description
Image	A new Image.

operator <(Image, Image)

This operation compares if the left operand is less than the right operand.

Declaration

public static Image operator <(Image left, Image right)

Parameters

Type	Name	Description
Image	left	Left Image.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator <(Image, double)

This operation compares if the left operand is less than the right operand.

Declaration

public static Image operator <(Image left, double right)

Parameters

Type	Name	Description
Image	left	Left Image.
double	right	Right double constant.

Returns

Type	Description
Image	A new Image.

operator <(Image, double[])

This operation compares if the left operand is less than the right operand.

Declaration

public static Image operator <(Image left, double[] right)

Parameters

Type	Name	Description
Image	left	Left Image.
double[]	right	Right double array.

Returns

Type	Description
Image	A new Image.

operator <(Image, int[])

This operation compares if the left operand is less than the right operand.

Declaration

public static Image operator <(Image left, int[] right)

Parameters

Type	Name	Description
Image	left	Left Image.
int[]	right	Right integer array.

Returns

Type	Description
Image	A new Image.

operator <(double, Image)

This operation compares if the left operand is less than the right operand.

Declaration

public static Image operator <(double left, Image right)

Parameters

Type	Name	Description
double	left	Left double constant.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator <(double[], Image)

This operation compares if the left operand is less than the right operand.

Declaration

public static Image operator <(double[] left, Image right)

Parameters

Type	Name	Description
double[]	left	Left double array.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator <(int[], Image)

This operation compares if the left operand is less than the right operand.

Declaration

public static Image operator <(int[] left, Image right)

Parameters

Type	Name	Description
int[]	left	Left integer array.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator <=(Image, Image)

This operation compares if the left operand is less than or equal to the right operand.

Declaration

public static Image operator <=(Image left, Image right)

Parameters

Type	Name	Description
Image	left	Left Image.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator <=(Image, double)

This operation compares if the left operand is less than or equal to the right operand.

Declaration

public static Image operator <=(Image left, double right)

Parameters

Type	Name	Description
Image	left	Left Image.
double	right	Right double constant.

Returns

Type	Description
Image	A new Image.

operator <=(Image, double[])

This operation compares if the left operand is less than or equal to the right operand.

Declaration

public static Image operator <=(Image left, double[] right)

Parameters

Type	Name	Description
Image	left	Left Image.
double[]	right	Right double array.

Returns

Type	Description
Image	A new Image.

operator <=(Image, int[])

This operation compares if the left operand is less than or equal to the right operand.

Declaration

public static Image operator <=(Image left, int[] right)

Parameters

Type	Name	Description
Image	left	Left Image.
int[]	right	Right integer array.

Returns

Type	Description
Image	A new Image.

operator <=(double, Image)

This operation compares if the left operand is less than or equal to the right operand.

Declaration

public static Image operator <=(double left, Image right)

Parameters

Type	Name	Description
double	left	Left double constant.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator <=(double[], Image)

This operation compares if the left operand is less than or equal to the right operand.

Declaration

public static Image operator <=(double[] left, Image right)

Parameters

Type	Name	Description
double[]	left	Left double array.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator <=(int[], Image)

This operation compares if the left operand is less than or equal to the right operand.

Declaration

public static Image operator <=(int[] left, Image right)

Parameters

Type	Name	Description
int[]	left	Left integer array.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator %(Image, Image)

This operation calculates left % right (remainder after integer division).

Declaration

public static Image operator %(Image left, Image right)

Parameters

Type	Name	Description
Image	left	Left Image.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator %(Image, double)

This operation calculates left % right (remainder after integer division).

Declaration

public static Image operator %(Image left, double right)

Parameters

Type	Name	Description
Image	left	Left Image.
double	right	Right double constant.

Returns

Type	Description
Image	A new Image.

operator %(Image, double[])

This operation calculates left % right (remainder after integer division).

Declaration

public static Image operator %(Image left, double[] right)

Parameters

Type	Name	Description
Image	left	Left Image.
double[]	right	Right double array.

Returns

Type	Description
Image	A new Image.

operator %(Image, int[])

This operation calculates left % right (remainder after integer division).

Declaration

public static Image operator %(Image left, int[] right)

Parameters

Type	Name	Description
Image	left	Left Image.
int[]	right	Right integer array.

Returns

Type	Description
Image	A new Image.

operator %(double, Image)

This operation calculates left % right (remainder after integer division).

Declaration

public static Image operator %(double left, Image right)

Parameters

Type	Name	Description
double	left	Left double constant.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator %(double[], Image)

This operation calculates left % right (remainder after integer division).

Declaration

public static Image operator %(double[] left, Image right)

Parameters

Type	Name	Description
double[]	left	Left double array.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator %(int[], Image)

This operation calculates left % right (remainder after integer division).

Declaration

public static Image operator %(int[] left, Image right)

Parameters

Type	Name	Description
int[]	left	Left integer array.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator *(Image, Image)

This operation calculates left * right.

Declaration

public static Image operator *(Image left, Image right)

Parameters

Type	Name	Description
Image	left	Left Image.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator *(Image, double)

This operation calculates left * right.

Declaration

public static Image operator *(Image left, double right)

Parameters

Type	Name	Description
Image	left	Left Image.
double	right	Right double constant.

Returns

Type	Description
Image	A new Image.

operator *(Image, double[])

This operation calculates left * right.

Declaration

public static Image operator *(Image left, double[] right)

Parameters

Type	Name	Description
Image	left	Left Image.
double[]	right	Right double array.

Returns

Type	Description
Image	A new Image.

operator *(Image, int[])

This operation calculates left * right.

Declaration

public static Image operator *(Image left, int[] right)

Parameters

Type	Name	Description
Image	left	Left Image.
int[]	right	Right integer array.

Returns

Type	Description
Image	A new Image.

operator *(double, Image)

This operation calculates left * right.

Declaration

public static Image operator *(double left, Image right)

Parameters

Type	Name	Description
double	left	Left double constant.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator *(double[], Image)

This operation calculates left * right.

Declaration

public static Image operator *(double[] left, Image right)

Parameters

Type	Name	Description
double[]	left	Left double array.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator *(int[], Image)

This operation calculates left * right.

Declaration

public static Image operator *(int[] left, Image right)

Parameters

Type	Name	Description
int[]	left	Left integer array.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator >>(Image, int)

This operation shifts its first operand right by the number of bits specified by its second operand.

Declaration

public static Image operator >>(Image left, int right)

Parameters

Type	Name	Description
Image	left	Left Image.
int	right	The number of bits.

Returns

Type	Description
Image	A new Image.

operator -(Image, Image)

This operation calculates left - right.

Declaration

public static Image operator -(Image left, Image right)

Parameters

Type	Name	Description
Image	left	Left Image.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator -(Image, double)

This operation calculates left - right.

Declaration

public static Image operator -(Image left, double right)

Parameters

Type	Name	Description
Image	left	Left Image.
double	right	Right double constant.

Returns

Type	Description
Image	A new Image.

operator -(Image, double[])

This operation calculates left - right.

Declaration

public static Image operator -(Image left, double[] right)

Parameters

Type	Name	Description
Image	left	Left Image.
double[]	right	Right double array.

Returns

Type	Description
Image	A new Image.

operator -(Image, int[])

This operation calculates left - right.

Declaration

public static Image operator -(Image left, int[] right)

Parameters

Type	Name	Description
Image	left	Left Image.
int[]	right	Right integer array.

Returns

Type	Description
Image	A new Image.

operator -(double, Image)

This operation calculates left - right.

Declaration

public static Image operator -(double left, Image right)

Parameters

Type	Name	Description
double	left	Left double constant.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator -(double[], Image)

This operation calculates left - right.

Declaration

public static Image operator -(double[] left, Image right)

Parameters

Type	Name	Description
double[]	left	Left double array.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator -(int[], Image)

This operation calculates left - right.

Declaration

public static Image operator -(int[] left, Image right)

Parameters

Type	Name	Description
int[]	left	Left integer array.
Image	right	Right Image.

Returns

Type	Description
Image	A new Image.

operator true(Image)

Returns a value indicating whether a given Image is definitely true.

Declaration

public static bool operator true(Image image)

Parameters

Type	Name	Description
Image	image	The image to check.

Returns

Type	Description
bool	true if image is definitely true; otherwise, false.

Implements

IDisposable