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1996-11-18
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.TH pnmsmooth 1 "13 January 1991"
.IX pnmsmooth
.SH NAME
pnmsmooth - smooth out an image
.SH SYNOPSIS
.B pnmsmooth
.RI [ pnmfile ]
.SH DESCRIPTION
Smooths out an image by replacing each pixel with the
average of its nine immediate neighbors.
.IX smoothing
.IX anti-aliasing
It is implemented as a simple script using
.IR pnmconvol .
.IX pnmconvol
.SH "SEE ALSO"
pnmconvol(1), pnm(5)
.SH BUGS
It's a script.
Scripts are not portable to non-Unix environments.
.SH AUTHOR
Copyright (C) 1989, 1991 by Jef Poskanzer.
.\" Permission to use, copy, modify, and distribute this software and its
.\" documentation for any purpose and without fee is hereby granted, provided
.\" that the above copyright notice appear in all copies and that both that
.\" copyright notice and this permission notice appear in supporting
.\" documentation. This software is provided "as is" without express or
.\" implied warranty.