Ppmrelief User Manual(1) General Commands Manual Ppmrelief User Manual(1) NAME ppmrelief - compute a relief of a PPM image SYNOPSIS ppmrelief [ppmfile] DESCRIPTION This program is part of Netpbm(1). ppmrelief reads a PPM image as input, and writes a relief of that image as a PPM image as output. The relief process is described in "Beyond Photography" by Holzmann, equation 3.19. It's a sort of edge-detection and is essentially a con- volution with this matrix: | 1 0 0 | | 0 0 0 | | 0 0 -1 | OPTIONS There are no command line options defined specifically for ppmrelief, but it recognizes the options common to all programs based on libnetpbm (See Common Options ⟨index.html#commonoptions⟩ .) SEE ALSO pamshadedrelief(1), pgmbentley(1), pgmoil(1), ppm(1) AUTHOR Copyright (C) 1990 by Wilson Bent (whb@hoh-2.att.com) DOCUMENT SOURCE This manual page was generated by the Netpbm tool 'makeman' from HTML source. The master documentation is at http://netpbm.sourceforge.net/doc/ppmrelief.html netpbm documentation 02 August 2014 Ppmrelief User Manual(1)
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