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Ppmrelief User Manual
.SH 1
ppmrelief
.LP
Updated: 11 January 1991
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Table Of Contents
.SH 2
NAME
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ppmrelief - run a Laplacian relief filter on a PPM image
.SH 2
SYNOPSIS
.LP
\fBppmrelief\fR
[\fIppmfile\fR]
.SH 2
DESCRIPTION
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.LP
This program is part of Netpbm.
.LP
\fBppmrelief\fR reads a PPM image as input,
does a Laplacian relief filter, and writes a PPM image as output.
.LP
The Laplacian relief filter is described in "Beyond
Photography" by Holzmann, equation 3.19.  It's a sort of
edge-detection.
.SH 2
SEE ALSO
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pgmbentley, 
pgmoil, 
ppm
.SH 2
AUTHOR
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Copyright (C) 1990 by Wilson Bent (whb@hoh-2.att.com)
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\l'5i'
.SH 2
Table Of Contents
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