Geografic-Information-System/scripts/r.rgb/r.rgb.html

<h2>DESCRIPTION</h2>

<em>r.rgb</em> generates separate red, green and blue maps from a
raster map and its associated color table (grey255).

<h2>EXAMPLE</h2>

<div class="code"><pre>
g.region raster=elevation -p
r.rgb input=elevation red=elevation.r green=elevation.g blue=elevation.b
</pre></div>

<p>
In this case <em>r.rgb</em> produces in the current mapset three new
raster maps - 'elevation.r', 'elevation.g', 'elevation.b'.
<p>
<!--
d.split.frame frames=4
d.frame -s uno
d.rast elevation
d.font Vera
echo " elevation" | d.text col=black

d.frame -s dos
d.rast elevation.r
d.font Vera
echo " elevation.r" | d.text col=black

d.frame -s tres
d.rast elevation.g
d.font Vera
echo " elevation.g" | d.text col=black

d.frame -s cuatro
d.rast elevation.b
d.font Vera
echo " elevation.b" | d.text col=black
-->
<center>
<img src="r_rgb_elevation.png"><br>
</center>

<h2>SEE ALSO</h2>

<em>
<a href="r.composite.html">r.composite</a>,
<a href="r.blend.html">r.blend</a>,
<a href="r.colors.html">r.colors</a>,
<a href="r.mapcalc.html">r.mapcalc</a>
</em>

<h2>AUTHOR</h2>

Glynn Clements

<p>
<i>Last changed: $Date$</i>