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RedHat 9 (Linux i386) - man page for ppmrelief (redhat section 1)

ppmrelief(1)			     General Commands Manual			     ppmrelief(1)

NAME
       ppmrelief - run a Laplacian relief filter on a portable pixmap

SYNOPSIS
       ppmrelief [ppmfile]

DESCRIPTION
       Reads  a  portable pixmap as input.  Does a Laplacian relief filter, and writes a portable
       pixmap 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)

					 11 January 1991			     ppmrelief(1)


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