Various small and useful command-line utilities
3d Procedural Generator
2D CAD for precise drawing
Astronomical object/structure detection from 1D and 2D data sets.
Convert Netpbm programs to GIMP plug-ins
Open-Source Shoemaking
crossplatform multithreaded object-oriented render and audio engine
realistic driving simulation + functions for 2D/3D graphics
A dithering software based around floats
ProStack - a platform for image processing and analysis
Experimental 3D media playback framework and demo applications
wxSVG is C++ library to create, manipulate and render SVG files.
Interactive 3D Layout Viewer for GDSII
Image processing library in C/C++
Rendera is an open-source painting package.
Imaging application for GNUstep and MacOS
A project that has moved to GitHub
ITTT is a Free tool designed to Scan and extract Text from Images.