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+\
+.\" This man page was generated by the Netpbm tool 'makeman' from HTML source.
+.\" Do not hand-hack it! If you have bug fixes or improvements, please find
+.\" the corresponding HTML page on the Netpbm website, generate a patch
+.\" against that, and send it to the Netpbm maintainer.
+.TH "Pgmenhance User Manual" 1 "13 January 1989" "netpbm documentation"
+
+.SH NAME
+
+pgmenhance - edge-enhance a PGM image
+
+.UN synopsis
+.SH SYNOPSIS
+
+\fBpgmenhance\fP
+
+[-\fIN\fP]
+
+[\fIpgmfile\fP]
+
+.UN description
+.SH DESCRIPTION
+.PP
+This program is part of
+.BR "Netpbm" (1)\c
+\&.
+.PP
+\fBpgmenhance\fP reads a PGM image as input, enhances the edges,
+and writes a PGM image as output.
+.PP
+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.
+
+.UN options
+.SH OPTIONS
+.PP
+In addition to the options common to all programs based on libnetpbm
+(most notably \fB-quiet\fP, see
+.UR index.html#commonoptions
+ Common Options
+.UE
+\&), \fBpgmenhance\fP recognizes the following
+command line option:
+
+
+.TP
+\fB-\fP\fIN\fP
+.sp
+The optional \fB-\fP\fIN\fP option should be a digit from 1 to 9.
+1 is the lowest level of enhancement; 9 is the highest. The default
+is 9.
+
+
+
+.UN seealso
+.SH SEE ALSO
+.BR "pamedge" (1)\c
+\&,
+.BR "pgm" (1)\c
+\&
+
+.UN author
+.SH AUTHOR
+
+Copyright (C) 1989 by Jef Poskanzer.
+.SH DOCUMENT SOURCE
+This manual page was generated by the Netpbm tool 'makeman' from HTML
+source. The master documentation is at
+.IP
+.B http://netpbm.sourceforge.net/doc/pgmenhance.html
+.PP \ No newline at end of file