ImageMagick 7
Scriptable desktop app to correct the perspective of images
A fast image processing library with low memory needs
High performance Node.js image processing module
Python code able to convert / compress image to PI (3.14, π) Indexes
Open-source photogrammetry for 3D reconstruction.
Emgu CV is a cross platform .Net wrapper for OpenCV
Graphic Live Mixer
Advanced image processing toolbox for Scilab on Unix/Linux/Mac OS
Open source library for processing arrays and matrices
OpenCV library wrapper for Lua language
IDE for creating interactive Flash and HTML5 content