CentOS 7.0 - man page for pbmtoascii (centos section 0)
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Pbmtoascii User Manual(0) Pbmtoascii User Manual(0)
pbmtoascii - convert a PBM image to ASCII graphics
This program is part of Netpbm(1)
pbmtoascii reads a PBM image as input and produces a somewhat crude ASCII graphic image as
To convert back, use asciitopgm(1)
ppmtoterm does a similar thing for color images to be displayed on color text terminals.
The -1x2 and -2x4 options give you two alternate ways for the pixels to get mapped to
characters. With 1x2, the default, each character represents a group of 1 pixel across by
2 pixels down. With -2x4, each character represents 2 pixels across by 4 pixels down.
With the 1x2 mode you can see the individual pixels, so it's useful for previewing small
images on a non-graphics terminal. The 2x4 mode lets you display larger images on a small
display, but it obscures pixel-level details. 2x4 mode is also good for displaying PGM
pamscale -width 158 | pnmnorm | pamditherbw -threshold | pbmtoascii -2x4
should give good results.
Copyright (C) 1988, 1992 by Jef Poskanzer.
netpbm documentation 02 April 2010 Pbmtoascii User Manual(0)
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