SIMD-accelerated libjpeg-compatible JPEG codec library
Swiss army knife of image processing
a free library to read and display PNG images.
Unofficial Windows builds of FontForge
Cross-platform open source software for astrophotography
A small C library for building user interfaces with C, XML and CSS.
Fast, advanced, multi-platform fractal generator
Functy is a 3D graph drawing package that generates immediate results.
Imagin Raytracer is a multithreaded command line raytracer
Rendering of 2D and 3D Celtic Knots
Renderer for subtitle format SSB.
Ultra-simple and fast zipped JPEG viewer released under GPL
4 plugins for 360 panorama editing
LBP implementation in multiple computing platforms (ARM,GPU, DSP...)
A 3D equirectangular panorama viewer, in C/GTK+
A windows CAD system with plugins written in C
Cuts 3D objects from polystyrene foam (EPS/XPS)