GB</B> is called for the conversion of each pixel.
</DD>
</DL>
<BR>
<BR>

<A NAME="39805"></A>
<B>:halve</B> [method]

<DL COMPACT>
<DT> 
<DD> 
returns color-pixel-image that is shrunk into half-size image.
</DD>
</DL>
<BR>
<BR>

<A NAME="39815"></A>
<B>:display</B> <EM>&amp;optional (win *color-viewer*) </EM>[method]

<DL COMPACT>
<DT> 
<DD> 
displays this color-pixel-image in a xwindow
designated by <EM>win</EM> by using <TT>:putimage</TT>.
Each pixel value is referred as a index in x's color map.
To get 