1\
2.\" This man page was generated by the Netpbm tool 'makeman' from HTML source.
3.\" Do not hand-hack it!  If you have bug fixes or improvements, please find
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6.TH "Ppmtorgb3 User Manual" 0 "10 January 1991" "netpbm documentation"
7
8.UN lbAB
9.SH NAME
10
11ppmtorgb3 - separate a PPM image into three PGMs
12
13.UN lbAC
14.SH SYNOPSIS
15
16\fBppmtorgb3\fP
17
18[\fIppmfile\fP]
19
20.UN lbAD
21.SH DESCRIPTION
22.PP
23This program is part of
24.BR "Netpbm" (1)\c
25\&.
26.PP
27\fBppmtorgb3\fP reads a PPM image as input and writes three PGM
28images as output, one each for red, green, and blue.
29.PP
30\fBppmtorgb3\fP constructs the output filenames by taking the
31input filename, stripping off any extension, and appending
32\fB.red\fP, \fB.grn\fP, \fB.blu\fP.  For example, separating
33\fBlenna.ppm\fP would result in \fBlenna.red\fP, \fBlenna.grn\fP,
34and \fBlenna.blu\fP.  If the input comes from stdin, the names are
35\fBnoname.red\fP, \fBnoname.grn\fP, and \fBnoname.blu\fP.
36
37.UN lbAE
38.SH SEE ALSO
39.BR "rgb3toppm" (1)\c
40\&,
41.BR "pamchannel" (1)\c
42\&,
43.BR "ppmtopgm" (1)\c
44\&,
45.BR "pgmtoppm" (1)\c
46\&,
47.BR "ppm" (5)\c
48\&,
49.BR "pgm" (5)\c
50\&
51
52
53.UN lbAF
54.SH AUTHOR
55
56Copyright (C) 1991 by Jef Poskanzer.
57.SH DOCUMENT SOURCE
58This manual page was generated by the Netpbm tool 'makeman' from HTML
59source.  The master documentation is at
60.IP
61.B http://netpbm.sourceforge.net/doc/ppmtorgb3.html
62.PP