NetVips is fast and needs little memory. The NetVips.Benchmarks project tests NetVips against Magick.NET and ImageSharp. NetVips is around 26 times faster than Magick.NET and 4 times faster than ImageSharp.
It has around 300 operations covering arithmetic, histograms, convolution, morphological operations, frequency filtering, colour, resampling, statistics and others. It supports a large range of numeric formats, from 8-bit int to 128-bit complex. Images can have any number of bands.
As well as the usual JPEG, JPEG 2000, JPEG XL, TIFF, PNG, Ultra HDR, WebP, HEIC, AVIF, PDF, SVG and GIF, it supports many scientific and technical image formats, including RAW, SVS, MRXS, OpenEXR, FITS, Matlab, NIfTI, Analyze, and PFM. It can also load images via ImageMagick or GraphicsMagick, letting it load formats like DICOM.