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- ppmrelief(1) USER COMMANDS ppmrelief(1)
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- NAME
- ppmrelief - run a Laplacian Relief filter on a portable pix-
- map
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- SYNOPSIS
- ppmrelief [_✓p_✓p_✓m_✓f_✓i_✓l_✓e]
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- DESCRIPTION
- Reads a portable pixmap as input. Does a Laplacian Relief
- filter, and writes a portable pixmap as output.
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- The Laplacian Relief filter is described in "Beyond Photog-
- raphy" by Holzmann, equation 3.19. It's a sort of edge-
- detection.
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- SEE ALSO
- pgmbentley(1), pgmoil(1), ppm(5)
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- AUTHOR
- Copyright (C) 1990 by Wilson Bent (whb@hoh-2.att.com)
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- Sun Release 4.0 Last change: 11 January 1991 1
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