darktable is an open source photography workflow application
ImageMagick 7
High performance Node.js image processing module
ITTT is a Free tool designed to Scan and extract Text from Images.
Swiss army knife of image processing
Lynkeos is an astronomical webcam image processing software for OS X.
Scientific Visualisation Made Easy
Tools for 3D image analysis of additively manufactured parts
Professional vector flow chart drawing software
Convert images to .ico format
Scriptable desktop app to correct the perspective of images
BRIC is a powerful tool for batch image processing.
Graphic Live Mixer
Machine learning, computer vision, statistics and computing for .NET
Convert graphs or map files into numbers.