Sxwd is a multi-purpose tool for dealing with xwd images. Xwd is a C++ class which was created by merging xwd.c and xwud.c from the X11R6 distribution and porting them to GNU C++. Sxwd is a command line wrapper to exercise the member functions of xwd. Sxwd was created to manipulate the colormaps of 8-bit PsuedoColor XWD images in the production of custom USGS topographical maps. A few additional features have been added.
HGL is a compiler/interpreter suite for developing images. It features its own simple but powerful language, an output format configurable by plugins, runtime input handled by plugins, and easy integration into various environments like Web servers or graphical applications. The input is taken from a source file, which has to be compiled for quick and frequent access by the interpreter. An interpreter then runs the compiled files, takes input from custom plugins (if neccessary), and outputs its result via custom plugins.
AstroStack is an easy-to-use astronomical imaging and processing tool geared towards the use of inexpensive webcam CCDs. It provides a very tunable environment to produce the best quality images. It supports the following features: tunable webcam sampling; image stacking (averaging, additive etc.); pre and post-capture gamma (brightness) and contrast correction; dark-shot CCD calibration (subtractive); and an internal 16-bit grey-scale format for optimal resolution.