Linux Commands Examples

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ppmrelief

run a Laplacian relief filter on a portable pixmap


see also : pgmbentley - pgmoil

Synopsis

ppmrelief [ppmfile]


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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 , pgmoil , ppm


author

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

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