phpman > man > ppmrelief(1)

Che Dong

Produce a relief of a PPM image.

Produce a relief of the specified PPM image
ppmrelief {{path/to/input_file.ppm}} > {{path/to/output_file.ppm}}

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 AT hoh-2.com)



                                           11 January 1991                              ppmrelief(1)

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