medical image conversion utility
Retro Computer Image Library
Open Source Solid Modeling CAD
Tools to process and visualize scientific data and images
Various small and useful command-line utilities
Extend abcm2ps to support direct generation of PNG, SVG and PDF files
Convert BMP images into Sixel images
Complete solution for HDR photography
A C99 implementation for reading/writing WMF and EMF Graphic Metafiles
Transforms bitmaps into vector graphics
Creates APNG animation from PNG/TGA image sequence.
A full featured cross-platform image library
Embedded JPEG encoder
The Utah Raster Toolkit 3.0, patchlevel 2
Convert an ICC profile from v2 to v4
Convert Photo CD to PPM
angif fork with transparency layers (proof of concept implementation)