<span class="keyword">template</span> &lt;<span class="keyword">typename</span> ChannelValue, <span class="keyword">typename</span> Layout&gt; 
<a name="l00182"></a>00182 <span class="keyword">struct </span>is_pixel&lt;pixel&lt;ChannelValue,Layout&gt; &gt; : <span class="keyword">public</span> mpl::true_{};
<a name="l00183"></a>00183 
<a name="l00185"></a>00185 <span class="comment">//  HomogeneousPixelBasedConcept</span>
<a name="l00187"></a>00187 <span class="comment"></span>
<a name="l00188"></a>00188 <s