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1991-08-11
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pgmbentley(1) Unix Programmer's Manual pgmbentley(1)
NNNAAAMMMEEE
pgmbentley - Bentleyize a portable graymap
SSSYYYNNNOOOPPPSSSIIISSS
pppgggmmmbbbeeennntttllleeeyyy [_p_g_m_f_i_l_e]
DDDEEESSSCCCRRRIIIPPPTTTIIIOOONNN
Reads a portable graymap as input. Performs The Bentley Effect, and
writes a portable graymap as output.
The Bentley Effect is described in "Beyond Photography" by Holzmann,
chapter 4, photo 4. It's a vertical smearing based on brightness.
SSSEEEEEE AAALLLSSSOOO
pgmoil(1), ppmrelief(1), pgm(5)
AAAUUUTTTHHHOOORRR
Copyright (C) 1990 by Wilson Bent (whb@hoh-2.att.com)
11 January 1991 1