/span>&#160;  <span class="keywordflow">if</span> (src.channels() &lt; 4) {</div><div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;    <span class="keywordflow">return</span> src.clone();</div><div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;  }</div><div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;  cv::Mat dst;</div><div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;  cvtColor(src, dst, cv::COL