Man1 - ppmrelief.1
Table of Contents
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NAME
ppmrelief - run a Laplacian relief filter on a PPM image
SYNOPSIS
ppmrelief
[/ppmfile/]
DESCRIPTION
This program is part of *Netpbm*(1)
ppmrelief reads a PPM image as input, does a Laplacian relief filter, and writes a PPM image as output.
The Laplacian relief filter is described in ’Beyond Photography’ by Holzmann, equation 3.19. It’s a sort of edge-detection.
SEE ALSO
*pgmbentley*(1) , *pgmoil*(1) , *ppm*(5)
AUTHOR
Copyright (C) 1990 by Wilson Bent (whb@hoh-2.att.com)