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pbmpscale - enlarge a portable bitmap with edge smoothing
pbmpscale N [ pbmfile ]
Reads a portable bitmap as input, and outputs a portable bitmap enlarged N times. Enlarge-
ment is done by pixel replication, with some additional smoothing of corners and edges.
pnmenlarge(1), ppmscale(1), 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
pbmpscale works best for enlargements of 2. Enlargements greater than 2 should be done by
as many enlargements of 2 as possible, followed by an enlargement by the remaining factor.
12 Dec 1990 pbmpscale(1)
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