SIMD-accelerated libjpeg-compatible JPEG codec library
Panorama photo stitcher
Swiss army knife of image processing
Display, convert, and edit raster image and vector image files
Draw vector graphics to scale using a descriptive language
Drawing, graphics conversion, software development, administration.
Open Source Solid Modeling CAD
A full featured cross-platform image library
A modified pngnq: convert png images to 256 colours.
Convert images to Ascii Art, with a lot of options and drawing tools
Mesh and point cloud processing tools
A powerful C++ class library for image manipulation