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pamenlarge
Updated: 26 September 2004
Table Of Contents
NAME
pamenlarge - Enlarge a Netpbm image N times
SYNOPSIS
pamenlarge N [pnmfile]
DESCRIPTION
This program is part of Netpbm.
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
enlargements. But it is much
slower.
pamstretch is another enlarging
program that enlarges by integer factors. 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, pamscale, pamstretch, pnmsmooth, pnm
AUTHOR
Copyright (C) 1989 by Jef
Poskanzer.
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Table Of Contents
* NAME
* SYNOPSIS
* DESCRIPTION
* SEE ALSO
* AUTHOR
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