ImageMagick 7
A collection of packages providing extra functionality for GNU Octave
Lynkeos is an astronomical webcam image processing software for OS X.
Libraries and command line tools for medical image processing.
A Library for Interactive Modelling and Visualisation
Software for data analysis, image processing, simulations, solver.
LBP implementation in multiple computing platforms (ARM,GPU, DSP...)
Siril is an astronomical image processing software for Linux.