Init qrcode algo (#11829)

modules/objdetect/include/opencv2/objdetect.hpp

@@ -670,6 +670,14 @@ public:
     void groupRectangles(std::vector<cv::Rect>& rectList, std::vector<double>& weights, int groupThreshold, double eps) const;
 };
 
+/** @brief Detect QR code in image and return minimum area of quadrangle that describes QR code.
+    @param in  Matrix of the type CV_8UC1 containing an image where QR code are detected.
+    @param points Output vector of vertices of a quadrangle of minimal area that describes QR code.
+    @param eps_x Epsilon neighborhood, which allows you to determine the horizontal pattern of the scheme 1:1:3:1:1 according to QR code standard.
+    @param eps_y Epsilon neighborhood, which allows you to determine the vertical pattern of the scheme 1:1:3:1:1 according to QR code standard.
+    */
+CV_EXPORTS bool detectQRCode(InputArray in, std::vector<Point> &points, double eps_x = 0.2, double eps_y = 0.1);
+
 //! @} objdetect
 
 }