ImageMagick 7
A fast image processing library with low memory needs
darktable is an open source photography workflow application
Library to encode and decode images in WebP format
Swiss army knife of image processing
Scanning probe microscopy data visualisation and analysis
A collection of packages providing extra functionality for GNU Octave
Lynkeos is an astronomical webcam image processing software for OS X.
ProStack - a platform for image processing and analysis
Batch Image Rename, Slideshow, Convert, Resize in Windows Context Menu
Astronomical object/structure detection from 1D and 2D data sets.
Tools to process and visualize scientific data and images
Resilient Image Library - successor to DevIL
Open Source Solid Modeling CAD
LDraw™ editor for LEGO® style digital building instructions.
A thread safe, performant, feature rich image fetcher
Image processing library in C/C++
Easy converting PNM to (MASK+FG+BG)-pdf.
Tools to access streams in PDF-files at the object level.
Easy converting pgm and ppm to (MASK+FG+BG)-djvu.