The IPX Gimp Plugins package contains many plugins
for the Gimp that are geared towards image
analysis, such as image sharpening, edge
detection, region growing, and a number of
gradient-fu is a patch for the GIMP that exposes the functionality of the gradient editor to scripts and plug-ins. It creates entries in the GIMP PDB for all the common gradient editing routines.
An easy to use front end for the Xjig jigsaw program.
A deduplication based filesystem for Windows and Linux (SDFS)