pnmsmooth(1)

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)

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Free and Open Source Software