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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)