[MAN] ppmrelief

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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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Index

NAME

SYNOPSIS

DESCRIPTION

SEE ALSO

AUTHOR

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