diff --git a/modules/core/include/opencv2/core/types.hpp b/modules/core/include/opencv2/core/types.hpp
index e2b49749e..bfc63816c 100644
--- a/modules/core/include/opencv2/core/types.hpp
+++ b/modules/core/include/opencv2/core/types.hpp
@@ -392,6 +392,7 @@ public:
     //! various constructors
     RotatedRect();
     RotatedRect(const Point2f& center, const Size2f& size, float angle);
+    RotatedRect(const std::vector<Point2f>& points);
 
     //! returns 4 vertices of the rectangle
     void points(Point2f pts[]) const;
@@ -1547,6 +1548,31 @@ inline
 RotatedRect::RotatedRect(const Point2f& _center, const Size2f& _size, float _angle)
     : center(_center), size(_size), angle(_angle) {}
 
+inline
+RotatedRect::RotatedRect(const std::vector<Point2f>& _points)
+{
+    CV_Assert( _points.size() == 3 );
+    Point2f _center = 0.5f * (_points[0] + _points[2]);
+    Vec2f vecs[2];
+    vecs[0] = Vec2f(_points[0] - _points[1]);
+    vecs[1] = Vec2f(_points[1] - _points[2]);
+    // check that given sides are perpendicular
+    CV_Assert( abs(vecs[0].dot(vecs[1])) <= 0.001 );
+
+    // wd_i stores which vector (0,1) or (1,2) will make the width
+    // One of them will definitely have slope within -1 to 1
+    int wd_i = 0;
+    if( vecs[1][0] != 0 && fabs(vecs[1][1] / vecs[1][0]) <= 1.0f ) wd_i = 1;
+    int ht_i = (wd_i + 1) % 2;
+
+    float _angle = atan(vecs[wd_i][1] / vecs[wd_i][0]) * 180.0f / (float) CV_PI;
+    float _width = norm(vecs[wd_i]);
+    float _height = norm(vecs[ht_i]);
+
+    center = _center;
+    size = Size2f(_width, _height);
+    angle = _angle;
+}
 
 
 ///////////////////////////////// Range /////////////////////////////////