Display, convert, and edit raster image and vector image files
A collection of packages providing extra functionality for GNU Octave
Extend abcm2ps to support direct generation of PNG, SVG and PDF files
A small C library for building user interfaces with C, XML and CSS.
3D Software Renderer in 700 Lines
Extract the colour palette from an indexed png image.
Free drawing software for Windows, Mac OS X, and Linux
Not your usual Architectural Modeler