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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2//EN">
<HTML><HEAD><TITLE>Sgitopnm User Manual</TITLE></HEAD>
<BODY>
<H1>sgitopnm</H1>
Updated: 29 Jul 2000
<BR>
<A HREF="#index">Table Of Contents</A>
<A NAME="lbAB"> </A>
<H2>NAME</H2>
sgitopnm - convert a SGI image file to PNM
<A NAME="lbAC"> </A>
<H2>SYNOPSIS</H2>
<B>sgitopnm</B>
[<B>-verbose</B>]
[<B>-channel</B> <I>c</I>]
[<I>SGIfile</I>]
<A NAME="lbAD"> </A>
<H2>DESCRIPTION</H2>
<p>This program is part of <a href="index.html">Netpbm</a>.
<p><b>sgitopnm</b> reads an SGI image file as input and produces a PGM
image for a 2-dimensional (1 channel) input file, and a PPM image for
a 3-dimensional (3 or more channels) input file.
<P>Alternatively, the program produces a PGM image of any one of the
channels in the input file.
<A NAME="lbAE"> </A>
<H2>OPTIONS</H2>
<DL COMPACT>
<DT><B>-verbose</B>
<DD>Give some information about the SGI image file.
<DT><B>-channel</B> <I>c</I>
<DD>Extract channel <I>c</I> of the image as a PGM image. Without
this option, <B>sgitopnm</B> extracts the first 3 channels as a PPM
image or, if the input has only 1 channel, extracts that as a PGM
image, and if the input has 2 channels, fails.
</DL>
<A NAME="lbAF"> </A>
<H2>REFERENCES</H2>
SGI Image File Format documentation (draft v0.95) by Paul Haeberli (<A
HREF="mailto:paul@sgi.com">paul@sgi.com</A>). Available via ftp at
sgi.com:graphics/SGIIMAGESPEC.
<A NAME="lbAG"> </A>
<H2>SEE ALSO</H2>
<B><A HREF="pnm.html">pnm</A></B>,
<B><A HREF="pnmtosgi.html">pnmtosgi</A></B>
<A NAME="lbAH"> </A>
<H2>AUTHOR</H2>
<p>Copyright (C) 1994 by Ingo Wilken (<A
HREF="mailto:Ingo.Wilken@informatik.uni-oldenburg.de">Ingo.Wilken@informatik.uni-oldenburg.de</A>)
<HR>
<A NAME="index"> </A>
<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">OPTIONS</A>
<LI><A HREF="#lbAF">REFERENCES</A>
<LI><A HREF="#lbAG">SEE ALSO</A>
<LI><A HREF="#lbAH">AUTHOR</A>
</UL>
</BODY>
</HTML>
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