pnmenlarge Man page

pnmenlarge General Commands Manual pnmenlarge

NAME

pnmenlarge – read a portable anymap and enlarge it N times

SYNOPSIS

pnmenlarge N [pnmfile]

DESCRIPTION

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 pbmre‐
duce 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.

SEE ALSO

pbmreduce, pnmscale, pnmsmooth, pnm(5)

AUTHOR

Copyright (C) 1989 by Jef Poskanzer.

26 February 1989 pnmenlarge

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