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pbmclean - flip isolated pixels in portable bitmap
pbmclean
[-connect] [pbmfile]
Reads a portable bitmap as input. Outputs
a portable bitmap with every pixel which has less than connect (default
1) identical neighbours inverted. Pbmclean can be used to clean up "snow"
on bitmap images.
pbm(5)
Copyright (C) 1990 by Angus Duggan
Copyright (C) 1989 by Jef Poskanzer.
Permission to use, copy, modify, and
distribute this software and its documentation for any purpose and without
fee is hereby granted, provided that the above copyright notice appear
in all copies and that both that copyright notice and this permission notice
appear in supporting documentation. This software is provided "as is" without
express or implied warranty.
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