rgb3toppm redpgmfile greenpgmfile bluepgmfile
This program is part of Netpbm.
rgb3toppm reads three PGM images as input, taking each to represent
one component (red, green, and blue) of a color image. It produces a
PPM image as output.
ppmtorgb3, pamstack, pgmtoppm, ppmtopgm, ppm, pgm
Copyright (C) 1991 by Jef Poskanzer.
netpbm documentation 15 February 1990 Rgb3toppm User Manual(0)