1Ppmtorgb3 User Manual(0) Ppmtorgb3 User Manual(0)
2
3
4
6 ppmtorgb3 - separate a PPM image into three PGMs
7
8
10 ppmtorgb3
11
12 [ppmfile]
13
14
16 This program is part of Netpbm(1).
17
18 ppmtorgb3 reads a PPM image as input and writes three PGM images as
19 output, one each for red, green, and blue.
20
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.
26
27
29 rgb3toppm(1), pamchannel(1), ppmtopgm(1), pgmtoppm(1), ppm(1), pgm(1)
30
31
32
34 Copyright (C) 1991 by Jef Poskanzer.
35
36
37
38netpbm documentation 10 January 1991 Ppmtorgb3 User Manual(0)