rgb3toppm
Combine RGB component files into PPM image
TLDR
Combine RGB components into PPM
$ rgb3toppm [red.pgm] [green.pgm] [blue.pgm] > [output.ppm]
SYNOPSIS
rgb3toppm redfile greenfile bluefile
DESCRIPTION
rgb3toppm combines three separate PGM grayscale files (red, green, blue channels) into a single PPM color image. Part of Netpbm toolkit.
PARAMETERS
redfile
PGM file for red channel.greenfile
PGM file for green channel.bluefile
PGM file for blue channel.
SEE ALSO
ppmtorgb3(1), yuvsplittoppm(1)