Overlay-based comics translation tool
Create and edit SVG graphics directly in ownCloud. Based on svg-edit.
dedalo is a 2d cad drawing software written in python3.
A 3D equirectangular panorama viewer, in C/GTK+
Inkscape extension to add and edit GNUplot graphs
Modification of the graphics program GIMP to replicate Photoshop feel
A Blender 2.6+ addon that aims to implement Motion Graphs
IDE for creating interactive Flash and HTML5 content
PHP Image Class
Command line image editing software package and libraries.
A powerful C++ class library for image manipulation