ImageMagick 7
A standalone, large scale, open project for 2D/3D image processing
A fast image processing library with low memory needs
High performance Node.js image processing module
Lynkeos is an astronomical webcam image processing software for OS X.
Python code able to convert / compress image to PI (3.14, π) Indexes
AppIcon generates appiconset contains each resolution image for iOS
Scriptable desktop app to correct the perspective of images
IDE for creating interactive Flash and HTML5 content
MIB is a high-performance software package for image segmentation