darktable is an open source photography workflow application
ImageMagick 7
A free, high-quality, and portable font engine
Lynkeos is an astronomical webcam image processing software for OS X.
LDraw™ editor for LEGO® style digital building instructions.
ProStack - a platform for image processing and analysis
Scanning Probe Microscopy Controller and Data Visualization Software
Control and capture GUI for IIDC compliant cameras
Complete solution for HDR photography
ufraw reloaded
Create PDF from JPEG scans and photos
Digital image processing programs for Windows and Linux systems.
Cross-platform open source software for astrophotography
Library to correct optical lens defects and lens database
Free yourself
Sheet music reader, for hands-free musical performing.
Standalone software for photo editing and digital painting.
Standalone tool for taking pictures out of your webcam