darktable is an open source photography workflow application
ImageMagick 7
A portable, multi-platform, command-line driven graphing utility
Display, convert, and edit raster image and vector image files
Tools to process and visualize scientific data and images
Image browser and viewer for Unix - X/Motif
Open Source Solid Modeling CAD
Earth orbits and satellite coverage display in 3D on your laptop.
3D Without Boundaries
Scanning Probe Microscopy Controller and Data Visualization Software
a free library to read and display PNG images.
PyMOL is an OpenGL based molecular visualization system
A small C library for building user interfaces with C, XML and CSS.
Fast, advanced, multi-platform fractal generator
Functy is a 3D graph drawing package that generates immediate results.
Standalone software for photo editing and digital painting.
PHIGS (Programmer's Hierarchical Interactive Graphics System)
Software for data analysis, image processing, simulations, solver.
Not your usual Architectural Modeler