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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.3//EN">
<html><head><title>Ppmdim User Manual</title></head>
<body>
<h1>ppmdim</h1>
Updated: June 2002
<br>
<a href="#index">Table Of Contents</a>
<h2>NAME</h2>
ppmdim - dim a PPM image
<h2 id="synopsis">SYNOPSIS</h2>
ppmdim
<i>dimfactor</i>
[<i>ppmfile</i>]
<h2 id="description">DESCRIPTION</h2>
<p>This program is part of <a href="index.html">Netpbm</a>.
<p>This program is largely obsoleted by the more general <a
href="pamfunc.html"><b>pamfunc</b></a> (use the <b>-multiplier</b>
option). <b>ppmdim</b> remains for backward compatibility and also
because its use of integer arithmetic may make it faster.
<b>ppmdim</b> reads a PPM image input and diminishes its brightness by
the specified dimfactor. The dimfactor may be in the range from 0.0
(total blackness, deep night, nada, null, nothing) to 1.0 (original
picture's brightness).
<h2 id="options">OPTIONS</h2>
<p>There are no command line options defined specifically
for <b>ppmdim</b>, but it recognizes the options common to all
programs based on libnetpbm (See <a href="index.html#commonoptions">
Common Options</a>.)
<h2 id="seealso">SEE ALSO</h2>
<a href="ppm.html">ppm</a>,
<a href="pamfunc.html">pamfunc</a>,
<h2 id="author">AUTHOR</h2>
Copyright (C) 1993 by Frank Neumann
<hr>
<h2 id="index">Table Of Contents</h2>
<ul>
<li><a href="#synopsis">SYNOPSIS</a>
<li><a href="#description">DESCRIPTION</a>
<li><a href="#options">OPTIONS</a>
<li><a href="#seealso">SEE ALSO</a>
<li><a href="#author">AUTHOR</a>
</ul>
</body>
</html>
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