Pamenlarge User Manual(0)			     Pamenlarge User Manual(0)



NAME
       pamenlarge - Enlarge a Netpbm image N times


SYNOPSIS
       pamenlarge N [pnmfile]


DESCRIPTION
       This program is part of Netpbm(1).

       pamenlarge  reads  a  Netpbm  image  as	input, replicates its pixels N
       times, and produces a Netpbm image as output.  The output is  the  same
       type of image as the input.

       If  you	enlarge	 by  a	factor of 3 or more, you should probably add a
       pnmsmooth step; otherwise, you can  see	the  original  pixels  in  the
       resulting image.

       pamenlarge  can	enlarge	 only by integer factors.  The slower but more
       general pamscale can enlarge or reduce by arbitrary factors.   pamscale
       allows  you to enlarge by resampling, which gives you smoother enlarge-
       ments.  But it is much slower.

       pamstretch is another enlarging program that enlarges by	 integer  fac-
       tors.   It  does	 a simple kind of resampling that gives you a smoothed
       enlargement with less computational cost.

       pbmreduce can reduce by integer factors, but only for PBM images.


HISTORY
       pamenlarge was new in Netpbm 10.25 (October 2004).  It is designed as a
       replacement  for	 pnmenlarge  by Jef Poskanzer, which was in Pbmplus as
       far back as 1989.  The major difference is that pamenlarge can  enlarge
       PAM format images in addition to PNM.



SEE ALSO
       pbmreduce(1), pamscale(1), pamstretch(1), pnmsmooth(1), pnm(1)


AUTHOR
       Copyright (C) 1989 by Jef Poskanzer.



netpbm documentation	       26 September 2004     Pamenlarge User Manual(0)