The friendly Python Imaging Library fork
itom - an Open Source Measurement, Automation and Evaluation Software
Astronomical object/structure detection from 1D and 2D data sets.
Emgu CV is a cross platform .Net wrapper for OpenCV
Fluid width for YouTube, Vimeo, Vine, VideoPress, DailyMotion, etc.
Add watermark to any image or photo (batch processing available).
A Library for Interactive Modelling and Visualisation
Computer vision and image processing library for Qt.