# pbmtoascii

Updated: 11 August 2002
Index

## NAME

pbmtoascii - convert a PBM image to ASCII graphics

## SYNOPSIS

pbmtoascii [-1x2|-2x4] [pbmfile]

## DESCRIPTION

Reads a PBM image as input. Produces a somewhat crude ASCII graphic as output.

To convert back, use pgmtoascii.

## OPTIONS

The -1x2 and -2x4 flags 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 standard 80-column display, but it obscures pixel-level details. 2x4 mode is also good for displaying PGM images:

    pnmscale -width 158 | pnmnorm | pgmtopbm -thresh

should give good results.

## SEE ALSO

pgmtoascii pbm

## AUTHOR

Copyright (C) 1988, 1992 by Jef Poskanzer.

## Index

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
SEE ALSO
AUTHOR