BRL-CAD is a powerful constructive solid geometry solid modeling system that includes an interactive geometry editor, ray-tracing support for rendering and geometric analysis, path-tracing for realistic image synthesis, network distributed framebuffer support, and image and signal-processing tools.
LinPHA is an easy-to-use, multilingual, flexible photo/image archive/album/gallery written in PHP. It uses an SQL database (MySQL/PostgreSQL/SQLite) to store information about your pictures. It comes with an HTML-based installer, so you don't need experience in setting up SQL databases. Thumbnails are created as needed and stored in the SQL DB. It features complete user management, top ten statistics, hidden albums, different themes, slideshow, filemanager, uploader, watermarks, benchmark, printing, and more.
GraphicsMagick is a robust collection of tools and libraries which support reading, writing, and manipulating an image in over 90 major formats including popular formats like DPX, DICOM, BMP, GIF, JPEG, JPEG-2000, PDF, PNG, PNM, SVG, and TIFF. A high-quality 2D renderer is included, which provides a subset of SVG capabilities. C, C++, Perl, Tcl, and Ruby are supported. Originally based on ImageMagick, GraphicsMagick focuses on performance, minimizing bugs, and providing stable APIs and ABIs. It runs on all modern variants of Unix, Windows, and Mac OS X.
phpThumb() is a flexible thumbnail generator. The output can be larger or smaller than the source, an entire image or cropped section, with or without configurable borders and/or a background color. The source can be a local file, a remote file, or a database source. GIF reading is supported with or without GD support. BMP reading is supported with or without ImageMagick. Any ImageMagick-supported format can be used as a source if ImageMagick is available. Watermarking, unsharp mask sharpening, and caching are available. EXIF thumbnails can be extracted and/or used for large-source support.
UNG (UNG’s Not Gallery) is an image gallery script for control freaks, tweakers, and other power users. It browses subdirectories (uploaded manually via FTP, SCP, or another protocol) of a specified location and creates a hierarchy of categories and pictures. It automatically creates thumbnails for images that don’t have them already and has an optional comment system so people can discuss posted pictures.