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- ppmrelief(1) Unix Programmer's Manual ppmrelief(1)
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- NNNAAAMMMEEE
- ppmrelief - run a Laplacian Relief filter on a portable pixmap
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- SSSYYYNNNOOOPPPSSSIIISSS
- ppppppmmmrrreeellliiieeefff [_p_p_m_f_i_l_e]
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- DDDEEESSSCCCRRRIIIPPPTTTIIIOOONNN
- 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 Photography" by
- Holzmann, equation 3.19. It's a sort of edge-detection.
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- SSSEEEEEE AAALLLSSSOOO
- pgmbentley(1), pgmoil(1), ppm(5)
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- AAAUUUTTTHHHOOORRR
- Copyright (C) 1990 by Wilson Bent (whb@hoh-2.att.com)
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- 11 January 1991 1
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