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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).

                                         4 December 1994                             pnmsmooth(1)