DOKK / manpages / debian 10 / netpbm / pgmbentley.1.en
pgmbentley(1) General Commands Manual pgmbentley(1)

pgmbentley - Bentleyize a portable graymap

pgmbentley [pgmfile]

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.

pgmoil(1), ppmrelief(1), pgm(5)

Copyright (C) 1990 by Wilson Bent (whb@hoh-2.att.com)

11 January 1991