NAME¶
pnmsmooth - 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. It is implemented as a C progam that generates a PGM
convolution matrix and then invokes
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¶
pnmconvol(1),
pnm(5)
AUTHORS¶
Copyright (C) 1989, 1991 by Jef Poskanzer.
Converted from script to C program December 1994 by Mike Burns
(burns@chem.psu.edu).