pgmtoppm

Convert grayscale to color

$ pgmtoppm [color] [input.pgm] > [output.ppm]

$ pgmtoppm [red] [input.pgm] > [output.ppm]

$ pgmtoppm [black]-[blue] [input.pgm] > [output.ppm]

$ pgmtoppm -map [colormap.ppm] [input.pgm] > [output.ppm]

pgmtoppm colorspec [pgmfile]
pgmtoppm -map mapfile [pgmfile]

pgmtoppm converts a PGM grayscale image to a PPM color image. It maps gray values to colors, either a single color, a color range, or via a colormap.

colorspec

Color name or black-white range (e.g., "red", "black-blue").

Color map file.

pgmtoppm red image.pgm > red.ppm

pgmtoppm black-blue image.pgm > blue.ppm

pgmtoppm blue-red image.pgm > heat.ppm

pgmtoppm "#000000-#ff5500" image.pgm > orange.ppm

pgmtoppm -map palette.ppm image.pgm > colored.ppm

$
# COLOR FORMATS

$
# CAVEATS

Input must be PGM. For the reverse, use ppmtopgm. Part of Netpbm toolkit.

# HISTORY

pgmtoppm is part of **Netpbm** by **Jef Poskanzer**, providing grayscale to color conversion.

# SEE ALSO

ppmtopgm(1), pgmramp(1), ppmchange(1), netpbm(1)