ppmrelief

   Updated: 11 January 1991
   Table Of Contents

NAME

   ppmrelief - run a Laplacian relief filter on a PPM image

SYNOPSIS

   ppmrelief [ppmfile]

DESCRIPTION

   This program is part of Netpbm.

   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 Photog-
raphy" by
   Holzmann, equation 3.19. It's a sort of edge-detection.

SEE ALSO

   pgmbentley, pgmoil, ppm

AUTHOR

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



Table Of Contents

     * NAME
     * SYNOPSIS
     * DESCRIPTION
     * SEE ALSO
     * AUTHOR

UNIX/Linux commands referenced on this page:

1. as
2. sort
3. pgmbentley
4. pgmoil