ed&gt; <span class="keyword">struct </span>is_planar&lt;const PixelBased&gt; : <span class="keyword">public</span> is_planar&lt;PixelBased&gt; {};
<a name="l00051"></a>00051 
<a name="l00052"></a>00052 
<a name="l00053"></a>00053 <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt; <span class="keyword">struct </span>is_pixel : <span class="keyword">public</span> mpl::false_{};
<a name="l00054"></a>00054 <span class="keyword">template</span> &lt;<span class="keyword">typenam