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Visprint makes fractal fingerprint png images based on the contents of any file. The image will be different for almost every file with even slightly different contents. Visprint uses the IFS fractal generation process, pioneered by Michael Barnsley. It is a way to create images which are self-similar to infinite depths. In other words, the picture is made up of smaller versions of itself.

Simple drawing program enforcing limited slopes and diameters.

Xwpick lets you pick an image from an arbitrary window or rectangular area of an X Window (DEC Window) server and write it to a file in a variety of formats.

Waffle is a cross-platform C library that allows one to defer selection of an OpenGL API and window system until runtime. For example, on Linux, Waffle enables an application to select X11/EGL with an OpenGL 3.3 core profile, Wayland with OpenGL ES2, and other window system / API combinations. Waffle's immediate goal is to enable Piglit, Mesa's OpenGL test suite, to test multiple OpenGL flavors in a cross-platform way. However, Waffle's design does not preclude it from being useful to other projects.

waifu2x achieves image superresolution for anime-style art using deep convolutional neural networks from Torch. waifu2x-converter-cpp reimplements its converter function in C++ using OpenCV.

WebP is a new image format that provides lossless and lossy compression for images on the web. WebP lossless images are 26% smaller in size compared to PNGs. WebP lossy images are 25-34% smaller in size compared to JPEG images at equivalent SSIM index. WebP supports lossless transparency (also known as alpha channel) with just 22% additional bytes. Transparency is also supported with lossy compression and typically provides 3x smaller file sizes compared to PNG when lossy compression is acceptable for the red/green/blue color channels. Webmasters and web developers can use the WebP image format to create smaller and richer images that can help make the web faster.

This is a port of "XaoS", a real time fractal browser for X11 and ASCII terminals. Features: - Very fast algorithms allow interactive zooming. - Various coloring modes are provided for points inside and outside the selected fractal. - Autopilot mode - 11 fractal formulas - saving to GIF files - palette rotation - random dot stereograms

xd3d is a simple scientific visualization tool designed to be easy to learn. It can plot 2d and 3d meshes, with shadowing, contour plots, vector fields, iso-contour (3d), as well as 3d surfaces z=f(x,y) defined by an algebraic expression or a cloud of points. It generates high quality vector PostScript files for scientific publications and still or animated bitmap images. It includes the graph plotter xgraphic.