From fce74699613e64538c1fd038d828bb4f0f086fa4 Mon Sep 17 00:00:00 2001
From: Matthias Grundmann <grundmann.matthias@gmail.com>
Date: Mon, 10 Apr 2017 12:04:09 -0700
Subject: [PATCH] Update utility.hpp

Adding missing header for ostream decl. in line 384
---
 modules/core/include/opencv2/core/utility.hpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/modules/core/include/opencv2/core/utility.hpp b/modules/core/include/opencv2/core/utility.hpp
index bc33f03f5d..87c20f10c7 100644
--- a/modules/core/include/opencv2/core/utility.hpp
+++ b/modules/core/include/opencv2/core/utility.hpp
@@ -54,6 +54,7 @@
 #endif
 
 #include "opencv2/core.hpp"
+#include <ostream>
 
 namespace cv
 {