r_converter_impl not specialized for given color spaces&quot;</span>);</div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;};</div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;</div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> C&gt;</div><div class="line"><a name="l00052"></a><span class="lineno"><a class="line" href="structboost_1_1