struct </span>channel_type&lt;pixel&lt;ChannelValue,Layout&gt; &gt; {
<a name="l00203"></a>00203     <span class="keyword">typedef</span> ChannelValue type;
<a name="l00204"></a>00204 }; 
<a name="l00205"></a>00205 
<a name="l00206"></a>00206 } }  <span class="comment">// namespace boost::gil</span>
<a name="l00207"></a>00207 
<a name="l00208"></a>00208 <span class="keyword">namespace </span>boost {
<a name="l00209"></a>00209     <span class="keyword">template</span> &lt;<span class="keyword">typename</span