Swiss army knife of image processing
Scientific Visualisation Made Easy
ProStack - a platform for image processing and analysis
itom - an Open Source Measurement, Automation and Evaluation Software
Emgu CV is a cross platform .Net wrapper for OpenCV
A Free Experimental System for Image Processing
Advanced image processing toolbox for Scilab on Unix/Linux/Mac OS
Graphical Interface for Medical Image Analysis and Simulation
matlab 2D image processing GUI toolbox for flow visualization
A Multi-functional GUI-based Program for Image Processing and Analysis
TurboSphere is an easy to learn and powerful JS based game engine.
iwatermark is a image watermarking web application.
Computer vision and image processing library for Qt.
IDE for creating interactive Flash and HTML5 content