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<h4>buildOpticalFlowPyramid</h4>
<pre>public static&nbsp;int&nbsp;buildOpticalFlowPyramid(<a href="../../../org/opencv/core/Mat.html" title="class in org.opencv.core">Mat</a>&nbsp;img,
                                          java.util.List&lt;<a href="../../../org/opencv/core/Mat.html" title="class in org.opencv.core">Mat</a>&gt;