A full featured cross-platform image library
Developer's Image Library (DevIL) is a cross-platform image library utilizing a simple syntax to load, save, convert, manipulate, filter and display a variety of images with ease.
XMP PHP Toolkit Extension is a PHP module which include the Adobe XMP Toolkit SDK. The main functions from adobe XMP will be available from PHP as classes and methods. The actual release 2.0 is based on the new Adobe XMP Toolkit SDK 5.1.2.
darknocK detects edges in images. It is using Artificial Neural Networks to enchance the results of standard algorithms.
A fast, unobtrusive and modern cross-platform GUI toolkit. Agar fully exploits hardware acceleration where available, but also supports simple frame-buffer interfaces. Agar is stand-alone and easily portable to new platforms and graphics systems.
UNIX Paint is a simple, but useful image editing program.
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.
ImageCentral is an image database and image processor, in one package. It features integrated RAW conversions through ufraw. A web album frontend is also available in the package.
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