\
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.TH "Pgmbentley User Manual" 0 "11 January 1991" "netpbm documentation"

.SH NAME
pgmbentley - Bentleyize a PGM image

.UN synopsis
.SH SYNOPSIS

\fBpgmbentley\fP
[\fIpgmfile\fP]

.UN description
.SH DESCRIPTION
.PP
This program is part of
.BR Netpbm (1)
.
.PP
\fBpgmbentley\fP reads a PGM image as input and performs the
Bentley Effect, and writes a PGM image as output.
.PP
The Bentley Effect is described in 'Beyond Photography'
by Holzmann, chapter 4, photo 4.  It's a vertical smearing based on
brightness.

.UN seealso
.SH SEE ALSO
.BR pgmoil (1)
,
.BR ppmrelief (1)
,
.BR pgm (5)


.UN author
.SH AUTHOR

Copyright (C) 1990 by Wilson Bent (\fIwhb@hoh-2.att.com\fP)