pnmsmooth (1)
smooth out an image
SYNOPSIS
pnmsmooth
[ -size
width
height ]
[ -dump
dumpfile ]
[ pnmfile ]
DESCRIPTION
Smooths out an image by replacing each pixel with the
average of its width X height neighbors.
smoothing
anti-aliasing
It is implemented as a C progam that generates a PGM convolution matrix
and then invokes
pnmconvol .
pnmconvol
OPTIONS
-size width height
Specifies the size of the convolution matrix.
Default size is a 3x3 matrix.
Width and height sizes must be odd.
Maximum size of convolution matrix is limited by the maximum value for a
pixel such that (width * height * 2) must not exceed the maximum pixel value.
-dump dumpfile
Generates and saves the convolution file only.
Use of this option does not invoke pnmconvol.
SEE ALSO
AUTHORS
Copyright (C) 1989, 1991 by Jef Poskanzer.
Converted from script to C program December 1994 by Mike Burns (burns@chem.psu.edu).
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