A Free Experimental System for Image Processing
ImLab is a free open source graphical application for Scientific Image Processing that runs in Windows, Linux and many other UNIX systems. It supports multiple windows, data types including 32 bit integers, 32 bit real numbers and complex numbers.
OpenGL Image Processing LIBrary
GLIP-Lib is an OpenGL image processing library written in C++. It features all the necessary tools to quickly build texture filters and pipelines and operate them on the GPU.
xoris grabs the RGB color value of any pixel on the screen and dumps the color's name to stdout.
Glutmaster is a set of platform-independent classes that wrap GLUT in a C++ object model.
Lamia or Lamia Engine is the modern generation free distributable and open source game engine for creating computer games for several prevailing software platforms and very maybe hardware platforms either.
MAlbum is a generator for HTML photo albums. Select the photos to include, enter a description for them, choose a layout, and get an index page and slideshow in HTML format.
Image browser and viewer for Unix/X11
XImaging is a raster graphics browser and viewer with basic file management functionality. Its user interface is based on X/Motif. If desired, it can be built with CDE/ToolTalk support. XImaging is distributed in source code form. See the README file inside the distribution tarball for build instructions. Latest development version of the source code may be obtained from the official website (see link below).
Alphamote is an aiming to provide a free, open source alternative to Sony's Remote Camera Control software, which can be used to control Sony's alpha DSLR cameras via the USB port (changing settings, triggering, downloading, ...).