SIMD-accelerated libjpeg-compatible JPEG codec library
libjpeg-turbo is a JPEG image codec that uses SIMD instructions (MMX, SSE2, NEON, AltiVec) to accelerate baseline JPEG compression and decompression on x86, x86-64, ARM, and PowerPC systems. On such systems, libjpeg-turbo is generally 2-6x as fast as libjpeg, all else being equal. On other types of systems, libjpeg-turbo can still outperform libjpeg by a significant amount, by virtue of its highly-optimized Huffman coding routines. In many cases, the performance of libjpeg-turbo rivals that of proprietary high-speed JPEG codecs. libjpeg-turbo implements both the traditional libjpeg API as well as the less powerful but more straightforward TurboJPEG API. libjpeg-turbo also features colorspace extensions that allow it to compress from/decompress to 32-bit and big-endian pixel buffers (RGBX, XBGR, etc.), as well as a full-featured Java interface.
3D Without Boundaries
VirtualGL redirects 3D commands from a Unix/Linux OpenGL application onto a server-side GPU and converts the rendered 3D images into a video stream with which remote clients can interact to view and control the 3D application in real time.
An award-winning drawing program for children ages 3 to 12
Tux Paint is a free, award-winning drawing program for children ages 3 to 12. It combines an easy-to-use interface, fun sound effects, and an encouraging cartoon mascot who guides children as they use the program. Kids are presented with a blank canvas and a variety of drawing tools to help them be creative. Along with paintbrush, shapes and text, Tux Paint includes a "stamp" feature to add pre-drawn or photographic imagery to pictures, and a set of "magic tools" that provide filter effects (like blur, tint and waves) and interesting drawing tools (like train tracks, bubbles and grass). Tux Paint includes a collection of "starter" images, both coloring-book style and photo-realistic, and a large collections of stamps are available as a separate download. Additional content can be added by parents and teachers, or downloaded from 3rd parties. Tux Paint is available for Linux, BSD, Windows, Mac OS X and Haiku operating systems.
A very efficient tutor.
A touch typing tutor very flexible, supporting customizable keyboard layouts. You can edit and save new or unknown keyboard layouts, as the basic course was designed to not depend on specific ones. Also, there are some charts about the learning process.
Open Source Solid Modeling CAD
BRL-CAD is a powerful cross-platform constructive solid geometry solid modeling system that includes an interactive geometry editor, ray-tracing for rendering & geometric analyses, network distributed framebuffer support, image & signal-processing tools.
Creates APNG animation from PNG/TGA image sequence.
Creates highly optimized Animated PNG files from PNG/TGA image sequences. CLI versions available for all major OSes. GUI versions for Windows and macOS. Also, APNG Disassembler can be found at http://sourceforge.net/projects/apngdis
XTrackCAD is a CAD program for designing model railroad layouts. You can easily create layout of any scale or size. Libraries for many brands of track and turnouts are included. Adding new components is easy with the built-in editor.
projectM, a MilkDrop compatible opensource music visualizer
projectM is an OpenGL based advanced music visualization program for Linux, Mac OSX, and Windows. It is backward compatible with all the features of Milkdrop 1.x (and now 2.x), but has many new toys and enhancements.
libmng -THE reference library for reading, displaying, writing and examining Multiple-Image Network Graphics. MNG is the animation extension to the popular PNG image-format.
FreeWRL is an Open Source, cross platform VRML2 and X3D compliant browser, with script, SAI and EAI support. Platforms supported: Linux and other Unix-style platforms; Mac OS/X; Windows. Support for mobile platforms (iOS, Android, QNX) is under development.
A project that has moved to GitHub
GLFW is an Open Source, multi-platform library for creating windows with OpenGL contexts and receiving input and events. It is easy to integrate into existing applications and does not lay claim to the main loop. GLFW has moved to GitHub: https://github.com/glfw
Utility application to obtain data about your OpenGL implementation.
OpenGLChecker is a fast and smooth program that retrieves relevant information about your OpenGL implementation. It can also test your computer's performance with fully scripted benchmarks. This allows you to write your own benchmark scripts for testing your OpenGL performance.
libdmtx is a software library that enables programs to read and write Data Matrix (or "DataMatrix") 2D barcodes. It runs on several platforms, and can be accessed by multiple languages. The package provides fully featured command line utilities.
Unofficial Windows builds of FontForge
The aim of this project is to compile up-to-date Windows builds of FontForge. For 'stable' builds, see https://github.com/fontforge/fontforge/releases The build system used was based off that offered by Matthew Petroff (http://www.mpetroff.net/software/fontforge-windows/), but has since been practically rewritten. New in 31/07/2017: * Synced with 20170731 release * Compiled run_fontforge with Visual Studio to avoid antivirus false positives (r2) New in 07/04/2016: * Fixed crash in kern pairs dialogue * Fixed preferences window being too large New in 05/04/2016: * Synced with 20160404 release New in 27/08/2015: * Fix bug in saving fonts/files. New in 25/08/2015: * Synced with 20150824 release New in 14/06/2015: * Fixed bug in the display of window titles KNOWN ISSUES: * No collab support. Unlikely to be added. * CTRL-C from console no longer interrupts/stops FontForge
Command line utility to create graphs and plots for web, CGI, paper, slides. Create pie charts, bar graphs, scatterplots, and other kinds of graphic displays from your alphanumeric, date, time, or categorical data. Input data is in .csv or .txt. Output graphics in gif, postscript, eps, png, svg and others. Useful in dynamic web content systems and other unattended uses. Command line, batch mode. For full details see http://ploticus.sourceforge.net Dec 2016: A new compact python API called SVGdatashapes supercedes ploticus; For details please see http://svgdatashapes.com
Former project page
LProf is an open source color profiler that creates ICC compliant profiles for devices such as cameras, scanners and monitors. Origanally authored by Marti Maria the creator of LCMS. Marti has graciously consented to the creation of this project.
CsGL is OpenGL for the .Net Framework, providing support for OpenGL 1.1 - 1.4 and numerous extensions.
Convert GIF animations into APNG format.
This program converts GIF animations into animated PNG format. Usually it makes the files smaller. CLI version is OS-independent, GUI version is available for Windows. Another converter: http://sourceforge.net/projects/apng2gif
Convert APNG animations into animated GIF format.
This program converts APNG animations into animated GIF format. Wu64 quantization is used for true-color files. Transparency is handled either using a threshold, or composed over chosen background color. CLI version is OS-independent, GUI version is available for Windows. Another converter: http://sourceforge.net/projects/gif2apng
A video thumbnail generator based on FFMPEG.
ege(easy graphics engine)
Fast, advanced, multi-platform fractal generator
FractalNow provides users with tools to generate pictures of various types of fractals quickly and easily. It is made of both a command line tool, FractalNow, and a graphical tool, QFractalNow. The graphical tool, based on Qt library, allows users to explore fractals intuitively and generate pictures. Both tools are entirely multi-threaded and implement advanced algorithms and heuristics that make computation very fast compared to most existing free fractal generators.
RadeonTweaker is an opensource initiative to create a powerful tweaking utility for ati's radeon-based graphics cards. It can currently control most known registry settings and includes an overclocker and profile tool.
A program to rotoscope images.