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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.3//EN">
<html><head><title>Ppmtoascii User Manual</title></head>
<body>
<h1>ppmtoascii</h1>
Updated: 09 April 2010
<br>
<a href="#index">Table Of Contents</a>
<h2>NAME</h2>
ppmtoascii - convert a PPM image to ASCII graphics with ANSI terminal color
<h2 id="synopsis">SYNOPSIS</h2>
<b>ppmtoascii</b>
[<b>-1x2</b>|<b>-2x4</b>]
[<i>ppmfile</i>]
<h2 id="description">DESCRIPTION</h2>
<p>This program is part of <a href="index.html">Netpbm</a>.
<p><b>ppmtoascii</b> reads a PPM image as input and produces a somewhat
crude ASCII graphic image as output, with ANSI terminal control characters
so it has crude color when sent to a color text terminal.
<p>There is no converter for the other direction.
<p><b>ppmtoterm</b> does a similar thing, but displays each character of the
image as a single pixel (using the same dense character for every pixel),
whereas <b>ppmtoascii</b> combines 2 or 8 pixels into one character, where
the character roughly represents those particular pixels.
<p>Note that ANSI provides for only eight colors (including black and white).
<p>Note that an ANSI terminal can't display a single character in multiple
colors, so where a character represents 8 pixels of differing colors, the
color of the character is one that is the average of the colors of those
pixels.
<p><b>pbmtoascii</b> does the same thing for PBM images, with no terminal
control characters (because none are needed for a strictly black and white
image).
<h2 id="options">OPTIONS</h2>
<p>In addition to the options common to all programs based on libnetpbm
(most notably <b>-quiet</b>, see <a href="index.html#commonoptions">
Common Options</a>), <b>ppmtoascii</b> recognizes the following
command line options:
<p>The <b>-1x2</b> and <b>-2x4</b> options give you two alternate ways for the
pixels to get mapped to characters. With <b>1x2</b>, the default, each
character represents a group of 1 pixel across by 2 pixels down. With
<b>-2x4</b>, each character represents 2 pixels across by 4 pixels down.
<h2 id="seealso">SEE ALSO</h2>
<a href="pbmtoascii.html">pbmtoascii</a>
<a href="ppmtoterm.html">ppmtoterm</a>
<a href="ppm.html">ppm</a>
<h2 id="history">HISTORY</h2>
<p><b>ppmtoascii</b> was new in Netpbm 10.51 (June 2010). Frank Ch. Eigler
derived it from <b>pbmtoascii</b>.
<h2 id="author">AUTHOR</h2>
Copyright (C) 2010 by Frank Ch. Eigler.
<hr>
<h2 id="index">Table Of Contents</h2>
<ul>
<li><a href="#synopsis">SYNOPSIS</a>
<li><a href="#description">DESCRIPTION</a>
<li><a href="#options">OPTIONS</a>
<li><a href="#seealso">SEE ALSO</a>
<li><a href="#history">HISTORY</a>
<li><a href="#author">AUTHOR</a>
</ul>
</body>
</html>
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