Drawing, graphics conversion, software development, administration.
Lynkeos is an astronomical webcam image processing software for OS X.
Display, convert, and edit raster image and vector image files
Tools to process and visualize scientific data and images
Convert Netpbm programs to GIMP plug-ins
SIMD-accelerated libjpeg-compatible JPEG codec library
Extend abcm2ps to support direct generation of PNG, SVG and PDF files
Creates APNG animation from PNG/TGA image sequence.
Convert APNG animations into animated GIF format.
Convert GIF animations into APNG format.
Embedded JPEG encoder
The Utah Raster Toolkit 3.0, patchlevel 2
angif fork with transparency layers (proof of concept implementation)
Not your usual Architectural Modeler
Converts AtariST images (.neo, .pi1, .pi2, .pi3) to gifs (using gd).