.TL
Pbmtoascii User Manual
.SH 1
pbmtoascii
.LP
Updated: 11 August 2002
.br
Table Of Contents
.SH 2
NAME
.LP
pbmtoascii - convert a PBM image to ASCII graphics
.SH 2
SYNOPSIS
.LP
\fBpbmtoascii\fR
[\fB-1x2\fR|\fB-2x4\fR]
[\fIpbmfile\fR]
.SH 2
DESCRIPTION
.LP
.LP
This program is part of Netpbm.
\fBpbmtoascii\fR reads a PBM image as input and produces a somewhat
crude ASCII graphic image as output.
.LP
To convert back, use asciitopgm.
.SH 2
OPTIONS
.LP
.LP
The \fB-1x2\fR and \fB-2x4\fR options give you two alternate ways for
the pixels to get mapped to characters.  With \fB1x2\fR, the default,
each character represents a group of 1 pixel across by 2 pixels down.
With \fB-2x4\fR, 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:
.DS L
pamscale -width 158 | pnmnorm | pamditherbw -threshold
.DE
should give good results.
.SH 2
SEE ALSO
.LP
asciitopgm
pbm
.SH 2
AUTHOR
.LP
Copyright (C) 1988, 1992 by Jef Poskanzer.
.br
\l'5i'
.SH 2
Table Of Contents
.LP
.IP \(bu
NAME
.IP \(bu
SYNOPSIS
.IP \(bu
DESCRIPTION
.IP \(bu
OPTIONS
.IP \(bu
SEE ALSO
.IP \(bu
AUTHOR
.LP