pbmpscale(1)

NAME

       pbmpscale - enlarge a portable bitmap with edge smoothing

SYNOPSIS

       pbmpscale N [ pbmfile ]

DESCRIPTION

       Reads  a  portable  bitmap  as  input,  and  outputs  a portable bitmap
       enlarged N times. Enlargement is done by pixel replication,  with  some
       additional smoothing of corners and edges.

SEE ALSO

       pnmenlarge(1), ppmscale(1), pbm(5)

AUTHOR

       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, pro-
       vided that the above copyright notice appear in  all  copies  and  that
       both  that  copyright  notice and this permission notice appear in sup-
       porting documentation.  This  software  is  provided  "as  is"  without
       express or implied warranty.

NOTES

       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.

                                                        pbmpscale(12 Dec 1990)