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| author | giraffedata <giraffedata@9d0c8265-081b-0410-96cb-a4ca84ce46f8> | 2014-08-02 17:22:23 +0000 |
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| committer | giraffedata <giraffedata@9d0c8265-081b-0410-96cb-a4ca84ce46f8> | 2014-08-02 17:22:23 +0000 |
| commit | e02e458d778c746b1f105c997bd2e63305ffe0ea (patch) | |
| tree | 03d83797b7854d8936cecd6b1c5cd8b2a46a1774 /ppmrelief.html | |
| parent | 10b159bfa7af4304f496ccfebf00a3df16d9f35a (diff) | |
| download | netpbm-mirror-e02e458d778c746b1f105c997bd2e63305ffe0ea.tar.gz netpbm-mirror-e02e458d778c746b1f105c997bd2e63305ffe0ea.tar.xz netpbm-mirror-e02e458d778c746b1f105c997bd2e63305ffe0ea.zip | |
miscellaneous update
git-svn-id: http://svn.code.sf.net/p/netpbm/code/userguide@2236 9d0c8265-081b-0410-96cb-a4ca84ce46f8
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| -rw-r--r-- | ppmrelief.html | 48 |
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diff --git a/ppmrelief.html b/ppmrelief.html index b56c1a40..9725f1f1 100644 --- a/ppmrelief.html +++ b/ppmrelief.html @@ -2,56 +2,58 @@ <HTML><HEAD><TITLE>Ppmrelief User Manual</TITLE></HEAD> <BODY> <H1>ppmrelief</H1> -Updated: 11 January 1991 +Updated: 02 August 2014 <BR> <A HREF="#index">Table Of Contents</A> -<A NAME="lbAB"> </A> <H2>NAME</H2> -ppmrelief - run a Laplacian relief filter on a PPM image +ppmrelief - compute a relief of a PPM image -<A NAME="lbAC"> </A> -<H2>SYNOPSIS</H2> +<H2 id="synopsis">SYNOPSIS</H2> <B>ppmrelief</B> [<I>ppmfile</I>] -<A NAME="lbAD"> </A> -<H2>DESCRIPTION</H2> +<H2 id="description">DESCRIPTION</H2> <p>This program is part of <a href="index.html">Netpbm</a>. -<p><b>ppmrelief</b> reads a PPM image as input, -does a Laplacian relief filter, and writes a PPM image as output. +<p><b>ppmrelief</b> reads a PPM image as input, and writes a relief of +that image as a PPM image as output. -<P>The Laplacian relief filter is described in "Beyond -Photography" by Holzmann, equation 3.19. It's a sort of -edge-detection. +<P>The relief process is described in "Beyond Photography" by +Holzmann, equation 3.19. It's a sort of edge-detection and is essentially +a convolution with this matrix: -<A NAME="lbAE"> </A> -<H2>SEE ALSO</H2> +<pre> +<tt> + | 1 0 0 | + | 0 0 0 | + | 0 0 -1 | +</tt> +</pre> +<H2 id="seealso">SEE ALSO</H2> + +<A HREF="pamshadedrelief.html">pamshadedrelief</A>, <A HREF="pgmbentley.html">pgmbentley</A>, <A HREF="pgmoil.html">pgmoil</A>, <A HREF="ppm.html">ppm</A> -<A NAME="lbAF"> </A> -<H2>AUTHOR</H2> +<H2 id="author">AUTHOR</H2> Copyright (C) 1990 by Wilson Bent (<A HREF="mailto:whb@hoh-2.att.com">whb@hoh-2.att.com</A>) <HR> -<A NAME="index"> </A> -<H2>Table Of Contents</H2> +<H2 id="index">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> +<LI><A HREF="#synopsis">SYNOPSIS</A> +<LI><A HREF="#description">DESCRIPTION</A> +<LI><A HREF="#seealso">SEE ALSO</A> +<LI><A HREF="#author">AUTHOR</A> </UL> </BODY> </HTML> |