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ppmrelief

Section: User Commands (1)

Updated: 11 January 1991

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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)

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