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The Graphics Transformation Languages is a set of libraries for using and integrating transformation algorithms (such as filter or color conversion) in graphics applications. The goal is to provide the tools, languages and libraries to create generic transformation for graphics. Those transformations could then be used by different programs (Krita, The Gimp, CinePaint, gegl...). Currently the focus is on developing two languages, designed for two different implementations. - OpenCTL which is a GPL compatible of the Color Transformation Language, this language is dedicated at transforming the value of a single pixel (for instance brightness adjustement or desaturate). CTL is designed to be part of the Color Management process. - OpenShiva is inspired by Adobe's Hydra language from the AIF Toolkit, Shiva is a language that apply a kernel-like transformations on an image, that means it works using more than one pixel.

OpenImageIO is a library for reading and writing images, and a bunch of related classes, utilities, and applications. There is a particular emphasis on formats and functionality used in professional, large-scale animation and visual effects work for film. OpenImageIO is used extensively in animation and VFX studios all over the world, and is also incorporated into several commercial products.

The OpenJPEG library is an open-source JPEG 2000 library developed in order to promote the use of JPEG 2000. The main part of the project consists in a JPEG 2000 codec compliant with the Part 1 of the standard (Class-1 Profile-1 compliance). Besides this main codec, OpenJPEG integrates several other modules: - JP2 (JPEG 2000 standard Part 2 - Handling of JP2 boxes and extended multiple component transforms for multispectral and hyperspectral imagery) - MJ2 (JPEG 2000 standard Part 3) - JPWL (JPEG 2000 standard Part 11) - JPIP (JPEG 2000 standard Part 9) - OPJViewer, a GUI viewer for J2K, JP2, JPWL and MJ2 files

The OpenJPEG library is an open-source JPEG 2000 library developed in order to promote the use of JPEG 2000. The main part of the project consists in a JPEG 2000 codec compliant with the Part 1 of the standard (Class-1 Profile-1 compliance). Besides this main codec, OpenJPEG integrates several other modules: - JP2 (JPEG 2000 standard Part 2 - Handling of JP2 boxes and extended multiple component transforms for multispectral and hyperspectral imagery) - MJ2 (JPEG 2000 standard Part 3) - JPWL (JPEG 2000 standard Part 11) - JPIP (JPEG 2000 standard Part 9) - OPJViewer, a GUI viewer for J2K, JP2, JPWL and MJ2 files

OpenJUMP is an open source GIS software written in Java. It is based on JUMP GIS by Vivid Solutions. It's features include: * It is a Vector GIS that can read rasters as well. * OpenJUMP is known to work on Windows, Linux and Mac platforms, but should work on any operating system that runs Java 1.5 or later. * It is not just another free demo viewer, but you can edit, save, analyze etc. with JUMP / OpenJUMP. * It works, even with medium size datasets, and with professional touch. * It provides a GIS API with a flexible plugin structure, so that new features are relatively easy to develope around the sound mapping platform. * It utilises standards like GML, WMS and WFS. * It is already translated in English, Finnish, French, German, Italian, Portugese and Spanish. The translation in other languages is in progress. Extensions and plugins can be found at

The openNURBS Initiative provides CAD, CAM, CAE, and computer graphics software developers the tools to accurately transfer 3-D geometry between applications. openNURBS is an open source toolkit for reading and writing models in the 3DM format

OpenRM Scene Graph is set of tools and utilities that implement a high performance, flexible and extendible scene graph API. Underneath OpenRM, OpenGL(tm) is used as the graphics platform for rendering, so OpenRM is highly portable and can deliver blazing rendering speeds. OpenRM can be used on any platform that has OpenGL, and has been built and tested on: x86 Linux (s/w via Mesa, h/w using vendor drivers, e.g., nVidia) Irix Solaris FreeBSD Win32 (95/98/NT/2K/ME). OpenRM is a derivative work of RM Scene Graph (tm), a commercial scene graph product from R3vis Corporation. Late in 1999, R3vis announced the release of OpenRM into the Open Source community, with the OpenRM debut occuring on 1 March 2000. R3vis continues to maintain and develop RM Scene Graph, which contains additional features not present in OpenRM.

Deegree iGeoPortal is the web-based portal framework of deegree. It offers visualization of geodata through a standard web browser like Mozilla, Firefox or MSIE.

OptiPNG is a PNG optimizer that recompresses image files to a smaller size, without losing any information. This program also converts external formats (BMP, GIF, PNM; TIFF support is coming up) to optimized PNG, and performs PNG integrity checks and corrections. The idea has been inspired from pngcrush, and is explained in detail in the PNG-Tech article "A guide to PNG optimization". The implementation is carried forward in OptiPNG, which offers a faster execution per trial, and a wider search space.

The Open Scene Graph is a cross-platform C++ OpenGL library for the real-time, photo-realistic rendering of large 3D models. Uses range from visual simulation, to scientific modelling, to games, to whatever you can think of!