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<H1>ppmtorgb3</H1>
Updated: 10 January 1991
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<A HREF="#index">Table Of Contents</A>
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<H2>NAME</H2>
ppmtorgb3 - separate a PPM image into three PGMs
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<H2>SYNOPSIS</H2>
<B>ppmtorgb3</B>
[<I>ppmfile</I>]
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<H2>DESCRIPTION</H2>
<p>This program is part of <a href="index.html">Netpbm</a>.
<p><b>ppmtorgb3</b> reads a PPM image as input and writes three PGM
images as output, one each for red, green, and blue.
<p><b>ppmtorgb3</b> constructs the output filenames by taking the
input filename, stripping off any extension, and appending
<b>.red</b>, <b>.grn</b>, <b>.blu</b>. For example, separating
<b>lenna.ppm</b> would result in <b>lenna.red</b>, <b>lenna.grn</b>,
and <b>lenna.blu</b>. If the input comes from stdin, the names are
<b>noname.red</b>, <b>noname.grn</b>, and <b>noname.blu</b>.
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<H2>SEE ALSO</H2>
<A HREF="rgb3toppm.html">rgb3toppm</A>,
<A HREF="pamchannel.html">pamchannel</A>,
<A HREF="ppmtopgm.html">ppmtopgm</A>,
<A HREF="pgmtoppm.html">pgmtoppm</A>,
<A HREF="ppm.html">ppm</A>,
<A HREF="pgm.html">pgm</A>
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<H2>AUTHOR</H2>
Copyright (C) 1991 by Jef Poskanzer.
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<H2>Table Of Contents</H2>
<UL>
<LI><A HREF="#lbAB">NAME</A>
<LI><A HREF="#lbAC">SYNOPSIS</A>
<LI><A HREF="#lbAD">DESCRIPTION</A>
<LI><A HREF="#lbAE">SEE ALSO</A>
<LI><A HREF="#lbAF">AUTHOR</A>
</UL>
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