Section: User Commands (1)
Updated: 4 December 1994Index
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pnmsmooth - smooth out an image
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
- -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.
Copyright (C) 1989, 1991 by Jef Poskanzer.
Converted from script to C program December 1994 by Mike Burns (firstname.lastname@example.org
- SEE ALSO