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Ppmrelief User Manual(0)						 Ppmrelief User Manual(0)

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(1)

AUTHOR
       Copyright (C) 1990 by Wilson Bent (whb@hoh-2.att.com)

netpbm documentation			 11 January 1991		 Ppmrelief User Manual(0)
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