a><span class="lineno">   57</span>&#160;    <span class="keywordflow">return</span> images[0];</div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;  }</div><div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;  cv::Mat_&lt;T&gt; stacked = images[0].clone();</div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 1; i &lt; int(images.size()); ++i