From 964a8a9a9ddfd1f6032df6f881da1c86d69042ff Mon Sep 17 00:00:00 2001
From: Alexander Alekhin <alexander.alekhin@intel.com>
Date: Thu, 24 Aug 2017 18:53:57 +0300
Subject: [PATCH] ccalib: don't convert vector<Keypoint> into Mat-like
 structures

---
 modules/ccalib/include/opencv2/ccalib.hpp | 2 +-
 modules/ccalib/src/ccalib.cpp             | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/modules/ccalib/include/opencv2/ccalib.hpp b/modules/ccalib/include/opencv2/ccalib.hpp
index 79df5989c..c9b9391cb 100644
--- a/modules/ccalib/include/opencv2/ccalib.hpp
+++ b/modules/ccalib/include/opencv2/ccalib.hpp
@@ -71,7 +71,7 @@ public:
 
 	bool isInitialized();
 
-	void getPatternPoints(OutputArray original_points);
+	void getPatternPoints(std::vector<KeyPoint>& original_points);
     /**<
 		Returns a vector<Point> of the original points.
 	*/
diff --git a/modules/ccalib/src/ccalib.cpp b/modules/ccalib/src/ccalib.cpp
index efb5bdf25..249d5b14a 100644
--- a/modules/ccalib/src/ccalib.cpp
+++ b/modules/ccalib/src/ccalib.cpp
@@ -405,9 +405,9 @@ bool CustomPattern::findPattern(InputArray image, OutputArray matched_features,
     return (!m_ftrs.empty());
 }
 
-void CustomPattern::getPatternPoints(OutputArray original_points)
+void CustomPattern::getPatternPoints(std::vector<KeyPoint>& original_points)
 {
-    return Mat(keypoints).copyTo(original_points);
+    original_points = keypoints;
 }
 
 double CustomPattern::getPixelSize()