ss="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../org/opencv/features2d/DescriptorMatcher.html#empty()">empty</a></strong>()</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>java.util.List&lt;<a href="../../../org/opencv/core/Mat.html" title="class in org.opencv.core">Mat</a>&gt;</code></td>
<td class="colLast"><code><strong><a href="../../../org/opencv/features2d/DescriptorMatcher.html#getTrainDescriptors()">getTrainDescriptors</a></strong>(