Linux Commands Examples

A great documentation place for Linux commands


separate a portable pixmap into three portable graymaps

see also : rgb3toppm - ppmtopgm - pgmtoppm


ppmtorgb3 [ppmfile]

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Reads a portable pixmap as input. Writes three portable graymaps as output, one each for red, green, and blue.

The output filenames are constructed by taking the input filename, stripping off any extension, and appending ".red", ".grn", and ".blu". For example, separating lenna.ppm would result in, lenna.grn, and lenna.blu. If the input comes from stdin, the names are, noname.grn, and noname.blu.

see also

rgb3toppm , ppmtopgm , pgmtoppm , ppm, pgm


Copyright (C) 1991 by Jef Poskanzer.

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