v7 man page for pgmenhance

Query: pgmenhance

OS: v7

Section: 1

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

pgmenhance(1)						      General Commands Manual						     pgmenhance(1)

NAME
pgmenhance - edge-enhance a portable graymap
SYNOPSIS
pgmenhance [-N] [pgmfile]
DESCRIPTION
Reads a portable graymap as input. Enhances the edges, and writes a portable graymap as output. The edge enhancing technique is taken from Philip R. Thompson's "xim" program, which in turn took it from section 6 of "Digital Halftones by Dot Diffusion", D. E. Knuth, ACM Transaction on Graphics Vol. 6, No. 4, October 1987, which in turn got it from two 1976 papers by J. F. Jarvis et. al.
OPTIONS
The optional -N flag should be a digit from 1 to 9. 1 is the lowest level of enhancement, 9 is the highest, The default is 9.
SEE ALSO
pgmedge(1), pgm(5), pbm(5)
AUTHOR
Copyright (C) 1989 by Jef Poskanzer. 13 January 1989 pgmenhance(1)
Related Man Pages
pgmnorm(1) - redhat
pgmtolispm(1) - minix
pgmedge(1) - sunos
pnmnlfilt(1) - hpux
pnmnlfilt(1) - osf1
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