darktable is an open source photography workflow application
ImageMagick 7
Library to encode and decode images in WebP format
A collection of packages providing extra functionality for GNU Octave
Scanning probe microscopy data visualisation and analysis
Lynkeos is an astronomical webcam image processing software for OS X.
ProStack - a platform for image processing and analysis
Tools to process and visualize scientific data and images
Resilient Image Library - successor to DevIL
Open Source Solid Modeling CAD
LDraw™ editor for LEGO® style digital building instructions.
Image processing library in C/C++
a fork of the Panorama Tools / libpano13 with a fast PTOptimizer
Complete solution for HDR photography
Graphic Live Mixer
Advanced image processing toolbox for Scilab on Unix/Linux/Mac OS
Tools to train Image Operators automatically from a set of samples.
Bildster is an image processing library for educational purposes.