ppmrelief (1) - Linux Manuals
ppmrelief: run a Laplacian relief filter on a portable pixmap
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.
AUTHOR
Copyright (C) 1990 by Wilson Bent (whb [at] hoh-2.att.com)