00478"></a><a class="code" href="g_i_l_0513.html">00478</a>     <span class="keyword">struct </span><a class="code" href="g_i_l_0513.html" title="Function object that returns a grayscale reference of the K-th channel (specified...">kth_channel_deref_fn</a> {
<a name="l00479"></a>00479         BOOST_STATIC_CONSTANT(<span class="keywordtype">bool</span>, is_mutable=<a class="code" href="g_i_l_0600.html" title="Given a model of a pixel, determines whether the model represents a pixel reference...">pixel_is_ref