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A WPVS is a web service which is able to generate perspective terrain views, e.g. images of a certain terrain/area (possibly containing three dimensional objects, e.g. building or trees) rendered from a requested viewpoint. For this purposes the WPVS needs to process and render different kinds of geospatial data which is retrieved from different pre-configured datasets. These datasets can be remote OGC web services or locally installed deegree 2 web services.

Mxp (Mandelbrot explorer) is an X application for computing and exploring Mandelbrot sets. Features of mxp include: - zoom and un-zoom - dynamic resizing of drawing window - setup save/load - asynchronous image generation (buttons always work) - GIF output - animation - nine color schemes - color rotation - color change options - detailed statistics

# The Color Transformation Language # The Color Transformation Language, or CTL, is a programming language for digital color management. Digital color management requires translating digital images between different representations or color spaces. For example, the pixels in an image may encode the colors that should be seen when the image is displayed on a video monitor. Printing this image on paper, or recording it on motion picture film requires transforming the pixels to an appropriate representation: Video, inks on paper and film all have different color gamuts and dynamic ranges. Color mixing is additive for video, but subtractive for inks and film. Video and film typically use three color channels, while four or more inks are used for printing on paper. A color management system must transform each pixel in the original image to corresponding amounts of ink or film density values.

Art of Illusion is a free, open source 3D modelling and rendering studio. Many of its capabilities rival those found in commercial programs. Highlights include subdivision surface based modelling tools, skeleton based animation, and a graphical language for designing procedural textures and materials..

Delaboratory is a color correction utility for digital images. It features: - Floating point precision (not 8-bit like Gimp, not 16-bit like most raw processors) - Native support for multiple colorspaces (sRGB, ProPhoto RGB, LAB, CMYK, LCH, HSL, HSV, BW) - Non-destructive editing (adjustment layers) - KISS design, realtime preview - Basic operations: CMYK curves, CMYK levels, RGB curves, RGB levels, white balance in LAB, saturation in LAB, LAB curves, BW curve, HSV equalizer, LCH equalizer, recover shadows/highlights, vignette, local contrast, LAB/BW/RGB/CMYK gradients - Expert operations: levels, curves, equalizer, exposure, saturation, white balance, fill, tone, local contrast, auto_dodge/auto_burn, sharpen, vignette, gradient, gaussian blur, recover highlights, recover shadows, channel mixer, high pass, c2g, copy - Many blend modes (multiply, screen, overlay, inverted overlay, dodge, burn, add, grain extract, grain merge, sub, difference, darken, lighten), color/luminosity blending for RGB and CMYK - RAW support (via dcraw), up to 5 color samplers, histograms and color matrices, etc.

FT is a generic, native graph management system for GNUstep and Cocoa and is written in Objective-C. With FT you can persistently manage graphs consisting of nodes and edges. Each node may provide so-called services. Such a service may be e.g. a dictionary services, which all nodes provide at present. This service allows the storage of any data in a node and is based on keys which uniquely identify content within a dictionary. LICENSE: LGPL2 or later

Geomview and OOGL are part of an ongoing effort at the Geometry Center to provide interactive 3D graphics software which is particularly appropriate for displaying the kinds of objects and doing the kinds of operations of interest in mathematics research and education. You can compute an OOGL data file of a mathematical object that would be difficult or impossible to build a model of in the real world. In geomview, besides examining an object in ordinary Euclidean 3-space, you can look at objects in hyperbolic 3-space and Euclidean 4-space. The hyperbolic model is the projective one, where geodesics are straight lines and isometries are represented as 4x4 projective matrices. While geomview is tailored for mathematical visualization, it is written to be extensible and can serve as a general-purpose tool. Its functionality can be extended in an almost unlimited fashion by external modules.

Aview is powerful graphics viewer which utilize the aalib API and allows viewing netpbm format (and others in the presence of netpbm or ImageMagick) on console (using slang) and X. There are three programs. aview: the main program which could used to view pnm, ppm, pgm and pbm files. It runs under X or slang. asciiview: a shell script wraps around aview to allow wider range of image formats to be viewed. Netpbm package is required for the conversion. aaflip: a program to view flip animation using ascii text. Works under X and slang. You could press h to get help. You may also save the pics in various text format. Thanks to aalib!

Lib3ds is a free alternative to Autodesk's 3DS File Toolkit for handling 3DS files. It's main goal is to simplify the creation of 3DS import and export filters.

libAfterImage is the imaging library implemented for AfterStep X Window Manager. It has been generalized to be suitable for any application in need of robust graphics engine. It provides facilities for loading images from files of different formats, compressed in memory storage of images, scaling, tinting/shading, flipping and superimposition of arbitrary number of images over each other. In addition it allows for linear gradients drawing, and antialiased/smoothed text drawing using both FreeType library and X Window fonts. Primary goals of this library are to achieve exceptional quality of images and text, making code fast and small at the same time. Additional steps are taken to compensate for screen colordepth limitation, and different error diffusion algorithms are used to provide for smooth images even in low colordepth modes.