ImageMagick 7
SwiftShader is a high-performance CPU-based implementation
Library to encode and decode images in WebP format
Powerful and easy-to-use embedded GUI library with many widgets
Hewlett-Packard's Linux imaging and printing software
Image management application
Fast and simple digital painting software
A fast image processing library with low memory needs
LightZone is a photo editor for Mac, Windows, and Linux
A free, high-quality, and portable font engine
A collection of packages providing extra functionality for GNU Octave
Img is a collection of format handlers for the Tk photo image type.
A project that has moved to GitHub
Display, convert, and edit raster image and vector image files
Drawing, graphics conversion, software development, administration.
Doing 3D with Tcl
Cross Platform GUI Toolkit
Resilient Image Library - successor to DevIL
A simple 3D framework in C++