pgmbentley (1) Linux Manual Page
pgmbentley – Bentleyize a portable graymap
Synopsis
pgmbentley [pgmfile]Description
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.
