Section: User Commands (1)
Updated: 26 February 1989
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pnmenlarge - read a portable anymap and enlarge it N times
pnmenlarge N [pnmfile]
Reads a portable anymap as input. Replicates its pixels N times, and produces a portable anymap as output. ]]
pnmenlarge can only enlarge by integer factors. The slower but more general pnmscale ]] can enlarge or reduce by arbitrary factors, and pbmreduce ]] can reduce by integer factors, but only for bitmaps.
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.
pbmreduce?(1), pnmscale?(1), pnmsmooth?(1), pnm?(5)
Copyright (C) 1989 by Jef Poskanzer.
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