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ppmrelief.1
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1995-07-25
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1KB
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67 lines
ppppppppmmmmrrrreeeelllliiiieeeeffff((((1111)))) XXXXEEEENNNNIIIIXXXX SSSSyyyysssstttteeeemmmm VVVV ((((11111111 JJJJaaaannnnuuuuaaaarrrryyyy 1111999999991111)))) ppppppppmmmmrrrreeeelllliiiieeeeffff((((1111))))
NNNNAAAAMMMMEEEE
ppmrelief - run a Laplacian relief filter on a portable
pixmap
SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
ppppppppmmmmrrrreeeelllliiiieeeeffff [_p_p_m_f_i_l_e]
DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
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.
SSSSEEEEEEEE AAAALLLLSSSSOOOO
pgmbentley(1), pgmoil(1), ppm(5)
AAAAUUUUTTTTHHHHOOOORRRR
Copyright (C) 1990 by Wilson Bent (whb@hoh-2.att.com)
Page 1 (printed 9/7/93)