Merge pull request #14754 from allnes:java_qr_code

modules/objdetect/misc/java/test/QRCodeDetectorTest.java

+package org.opencv.test.objdetect;
+
+import org.opencv.core.Mat;
+import org.opencv.objdetect.QRCodeDetector;
+import org.opencv.imgcodecs.Imgcodecs;
+import org.opencv.test.OpenCVTestCase;
+
+public class QRCodeDetectorTest extends OpenCVTestCase {
+
+    private final static String ENV_OPENCV_TEST_DATA_PATH = "OPENCV_TEST_DATA_PATH";
+    private String testDataPath;
+
+    @Override
+    protected void setUp() throws Exception {
+        super.setUp();
+
+        testDataPath = System.getenv(ENV_OPENCV_TEST_DATA_PATH);
+        if (testDataPath == null)
+            throw new Exception(ENV_OPENCV_TEST_DATA_PATH + " has to be defined!");
+    }
+
+    public void testDetectAndDecode() {
+        Mat img = Imgcodecs.imread(testDataPath + "/cv/qrcode/link_ocv.jpg");
+        QRCodeDetector detector = new QRCodeDetector();
+        String output = detector.detectAndDecode(img);
+        assertEquals(output, "https://opencv.org/");
+    }
+
+}

modules/objdetect/misc/python/test/test_qrcode_detect.py

+#!/usr/bin/env python
+'''
+===============================================================================
+QR code detect and decode pipeline.
+===============================================================================
+'''
+
+import numpy as np
+import cv2 as cv
+
+from tests_common import NewOpenCVTests
+
+class qrcode_detector_test(NewOpenCVTests):
+    def test_detect_and_decode(self):
+        img = cv.imread(self.extraTestDataPath + '/cv/qrcode/link_ocv.jpg')
+        detector = cv.QRCodeDetector()
+        retval, points, straight_qrcode = detector.detectAndDecode(img)
+        self.assertEqual(retval, "https://opencv.org/");

modules/objdetect/src/qrcode.cpp

@@ -1084,7 +1084,6 @@ cv::String QRCodeDetector::decode(InputArray in, InputArray points,
         inarr = gray;
     }
 
-    CV_Assert(points.isVector());
     vector<Point2f> src_points;
     points.copyTo(src_points);
     CV_Assert(src_points.size() == 4);