ページ更新: 2004-09-28 (火) (6041日前)

Netpbm home page
http://netpbm.sourceforge.net/

PPM/PGM/PBM image files
http://astronomy.swin.edu.au/~pbourke/dataformats/ppm/

The Graphics File Format Page (2D specs) http://www.dcs.ed.ac.uk/home/mxr/gfx/2d-hi.html

Portable Pixel Map (PPM) File Format
http://www.graphicsacademy.com/format_ppm.php