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freeglut is a completely OpenSourced alternative to the OpenGL Utility Toolkit (GLUT) library. GLUT was originally written by Mark Kilgard to support the sample programs in the second edition OpenGL 'RedBook'. Since then, GLUT has been used in a wide variety of practical applications because it is simple, universally available and highly portable. GLUT (and hence freeglut) allows the user to create and manage windows containing OpenGL contexts on a wide range of platforms and also read the mouse, keyboard and joystick functions. freeglut is released under the X-Consortium license.

FreeImage is an open source library project for developers who would like to support popular graphics image formats like PNG, BMP, JPEG, TIFF, and others as needed by today's multimedia applications. FreeImage is easy to use, fast, multithreading safe, and cross-platform. This port includes both the original C interface and the C++ wrapper FreeImagePlus.

Command line assembler/disassembler of flash actionscript bytecode.

GeoAPI provides a set of interfaces from OpenGIS specifications.The development community in building GIS solutions is sustaining an enormous level of effort. The GeoAPI project aims to reduce duplication and increase interoperability by providing neutral, interface-only APIs derived from OGC/ISO Standards.

Geomorph is a height field generator and editor for the Linux operating system. A height field is a kind of topographic map. It is a 2D projection of a 3D landscape. Geomorph generates square images and shows a 3D preview of the resulting landscape. The resulting 2D image can be processed with a tool like Povray for rendering the landscape.

GImageView is a GTK+ based image viewer. It supports tabbed browsing, thumbnail table views, directory tree views, drag and drop, reading thumbnail cache of other famous image viewers, and a flexible user interface.

Gcolor is a very simple color picker that can be used to pick precise colors. It was inspired as a replacement for xcolorsel that offers a wider band of colors to pick from.

Gcolor2 is a simple, standalone GTK+ 2.0 color selector.

[ edited excerpt from developer's www site ] During image processing operations such as scanning and scaling, images tend to get blurry. The blurred impression of these images is due to the fact that image pixels are averaged with their neighbors. Blurred images don't have sharp boundaries and look as though they have been taken with an unfocussed camera. Refocus is a GIMP plug-in to "refocus" the image, using a technique called FIR Wiener filtering. The traditional technique for sharpening images is to use unsharp masking. Refocus generally produces better results than unsharp masking. The plugin can be found under "Filters > Enhance > Refocus"

eLectrix is an application to view Portable Document Format (PDF) files. Features: - zoom an rotation - basic text search - basic navigation history - fullscreen mode - tabs