1Ppmtorgb3 User Manual(0)                              Ppmtorgb3 User Manual(0)
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NAME

6       ppmtorgb3 - separate a PPM image into three PGMs
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SYNOPSIS

10       ppmtorgb3
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12       [ppmfile]
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DESCRIPTION

16       This program is part of Netpbm(1).
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18       ppmtorgb3  reads  a  PPM  image as input and writes three PGM images as
19       output, one each for red, green, and blue.
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21       ppmtorgb3 constructs the output filenames by taking the input filename,
22       stripping off any extension, and appending .red, .grn, .blu.  For exam‐
23       ple, separating lenna.ppm would result  in  lenna.red,  lenna.grn,  and
24       lenna.blu.   If  the  input comes from stdin, the names are noname.red,
25       noname.grn, and noname.blu.
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SEE ALSO

29       rgb3toppm(1), pamchannel(1), ppmtopgm(1), pgmtoppm(1), ppm(1), pgm(1)
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AUTHOR

34       Copyright (C) 1991 by Jef Poskanzer.
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38netpbm documentation            10 January 1991       Ppmtorgb3 User Manual(0)