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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2//EN">
<HTML><HEAD><TITLE>Pamenlarge User Manual</TITLE></HEAD>
<BODY>
<H1>pamenlarge</H1>
Updated: 26 September 2004
<BR>
<A HREF="#index">Table Of Contents</A>
<A NAME="lbAB"> </A>
<H2>NAME</H2>
pamenlarge - Enlarge a Netpbm image N times
<A NAME="lbAC"> </A>
<H2>SYNOPSIS</H2>
<B>pamenlarge</B> <I>N</I> [<I>pnmfile</I>]
<A NAME="lbAD"> </A>
<H2>DESCRIPTION</H2>
<p>This program is part of <a href="index.html">Netpbm</a>.
<p><b>pamenlarge</b> reads a Netpbm image as input, replicates its pixels
<I>N</I> times, and produces a Netpbm image as output. The output is
the same type of image as the input.
<P>If you enlarge by a factor of 3 or more, you should probably add a
<b>pnmsmooth</b> step; otherwise, you can see the original pixels in
the resulting image.
<P><b>pamenlarge</b> can enlarge only by integer factors. The slower
but more general <b>pamscale</B> can enlarge or reduce by arbitrary
factors. <b>pamscale</b> allows you to enlarge by resampling, which
gives you smoother enlargements. But it is much slower.
<p><b>pamstretch</b> is another enlarging program that enlarges by
integer factors. It does a simple kind of resampling that gives you a
smoothed enlargement with less computational cost.
<p><b>pbmreduce</b> can reduce by integer factors, but only for PBM
images.
<h2 id="history">HISTORY</h2>
<p><b>pamenlarge</b> was new in Netpbm 10.25 (October 2004). It is
designed as a replacement for <b>pnmenlarge</b> by Jef Poskanzer,
which was in Pbmplus as far back as 1989. The major difference is that
<b>pamenlarge</b> can enlarge PAM format images in addition to PNM.
<A NAME="lbAE"> </A>
<H2>SEE ALSO</H2>
<A HREF="pbmreduce.html">pbmreduce</A>,
<A HREF="pamscale.html">pamscale</A>,
<A HREF="pamstretch.html">pamstretch</A>,
<A HREF="pnmsmooth.html">pnmsmooth</A>,
<A HREF="pnm.html">pnm</A>
<A NAME="lbAF"> </A>
<H2>AUTHOR</H2>
Copyright (C) 1989 by Jef Poskanzer.
<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">SEE ALSO</A>
<LI><A HREF="#lbAF">AUTHOR</A>
</UL>
</BODY>
</HTML>
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