hod]

<DL COMPACT>
<DT> 
<DD> 
defines the size of a color image and allocates <TT>pixel-image</TT>s for each
color component.
</DD>
</DL>
<BR>
<BR>

             <P>
Provided a ppm file, you can extract color (hue) values out of the image
and display it in an xwindow by the following program.<PRE>
(setq ppmimg (read-pnm "xxx.ppm"))
(send ppmimg :hls)   ; RGB to HLS conversion
(make-ximage (send ppmimg :hue) *rainbow32*)
</PRE>

<P>

<H2><A NAME="SECTION03064000000000000000">
Edge Finder</A>
</H2>

<P>
Edge