ppmrelief(1) - Linux man page
Name
ppmrelief - run a Laplacian relief filter on a PPM image
Synopsis
ppmrelief
[ppmfile]
Description
This program is part of Netpbm(1).
ppmrelief reads a PPM image as input, does a Laplacian relief filter, and writes a PPM image 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(1)
Author
Copyright © 1990 by Wilson Bent (whb@hoh-2.att.com)