ppmrelief (1)

Run a laplacian relief filter on a portable pixmap

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  4. ppmrelief: Run a laplacian relief filter on a portable pixmap
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  4. 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.

RELATED TO ppmrelief…

pgmbentley(1), pgmoil(1), ppm(5)

AUTHOR

Copyright (C) 1990 by Wilson Bent ([email protected])