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Gnofract 4D is a free, open source program which allows anyone to create beautiful images called fractals. The images are automatically created by the computer based on mathematical principles. These include the Mandelbrot and Julia sets and many more. You don't need to do any math: you can explore a universe of images just using a mouse.

KLatexFormula is a Qt 4 program to easily get an image from a LaTeX formula. Just enter a formula, click "Evaluate", then you can drag & drop or copy the resulting image to another location (an OpenOffice document, for example) or save it as an image (many formats are available).

LaternaMagica is a single-window image viewer application which is capable of switching to full-screen mode. LaternaMagica maintains its image list in a window and the user selects which image to display, making it easy to assemble a show from different source directories. LICENSE: GPL2 or later

Visualises simple graphs (networks) based on a transition matrix, utilities to plot flow diagrams, visualising webs,... Support for the book "A practical guide to ecological modelling - using R as a simulation platform" by Karline Soetaert and Peter M.J. Herman (2009). Springer. Includes demo(flowchart), demo(plotmat), demo(plotweb)

Libart is a library of functions for 2D graphics supporting a superset of the PostScript imaging model, designed to be integrated with graphics, artwork, and illustration programs. It is written in optimized C, and is fully compatible with C++. With a small footprint of 10,000 lines of code, it is especially suitable for embedded applications.

Aeskulap is a medical image viewer. It is able to load a series of special images stored in the DICOM format for review. Additionally Aeskulap is able to query and fetch DICOM images from archive nodes (also called PACS) over the network. The goal of this project is to create a full open source replacement for commercially available DICOM viewers.

Skanlite is a simple image scanning application that does nothing more than scan and save images. Skanlite can open a save dialog for every image scanned or save the images immediately in a specified directory with auto-generated names and format. The user can also choose to show the scanned image before saving.

GrafX2 is a bitmap paint program inspired by the Amiga programs Deluxe Paint and Brilliance. Specialized in 256-color drawing, it includes a very large number of tools and effects that make it particularly suitable for pixel art, game graphics, and generally any detailed graphics painted with a mouse.

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.

Imager is a perl module for manipulating gray, color and rgba format images. It can read various file formats and has a builtin interpretered language for blends, fade and multiimage effects. It also has a plugin interface to write plugins in C. It also has drawing primitives and supports antialiased truetype and postscript fonts.