Read, write and edit metadata
Perl library and command-line application for reading, writing and editing meta information (EXIF, IPTC, XMP, and more) in a wide variety of file formats (JPEG, TIFF, PNG, PDF, RAW, and more).
An Inkscape extension for editable (digital) timing diagrams in publication quality, based on a very simple state-oriented language for signal description.
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.
Easy creation of normal maps
Simple Normal Mapper is a normal map editor with which one can easily create normal maps for 2D images. Normal mapping is used, for example, in 2D games to make an illusion of a 3D object. Simple Normal Mapper is fully automatic with some user-controllable parameters. Simple Normal Mapper is written in Qt and C++. The newest source code and releases here: https://github.com/juzzlin/SimpleNormalMapper/releases