ImageMagick 7
darktable is an open source photography workflow application
Improved JPEG encoder
A portable, multi-platform, command-line driven graphing utility
Display, convert, and edit raster image and vector image files
Retro Computer Image Library
Drawing, graphics conversion, software development, administration.
Open Source Solid Modeling CAD
Vim editor ported to WebAssembly
Library to correct optical lens defects and lens database
A small C library for building user interfaces with C, XML and CSS.
Free yourself
Video Capture from Windows WDM cameras
Extract the colour palette from an indexed png image.
PHIGS (Programmer's Hierarchical Interactive Graphics System)