From b91313a84efe1879186d128ab2825883c10f91a0 Mon Sep 17 00:00:00 2001
From: Vadim Pisarevsky <vadim.pisarevsky@gmail.com>
Date: Thu, 26 Mar 2015 16:26:41 +0300
Subject: [PATCH] initialize the output flow in EMD (thanks to Daniel DeMenthon
 for the bug report)

---
 modules/imgproc/src/emd.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/modules/imgproc/src/emd.cpp b/modules/imgproc/src/emd.cpp
index 69006f3c4..22468da6d 100644
--- a/modules/imgproc/src/emd.cpp
+++ b/modules/imgproc/src/emd.cpp
@@ -1152,6 +1152,7 @@ float cv::EMD( InputArray _signature1, InputArray _signature2,
     {
         _flow.create(signature1.rows, signature2.rows, CV_32F);
         flow = _flow.getMat();
+        flow = Scalar::all(0);
         _cflow = flow;
     }