PWC (Piecewise-Constant Image Model)
From Just Solve the File Format Problem
PWC (Piecewise-Constant Image Model) is a compressed raster image file format. It works best with images that have a limited number of colors, such as paletted images.
- http://www.caravian.com/research/index.htm → pwc.zip (Windows binaries)
- XnView (Does not seem to correctly display most PWC images.)