or/

Author: AleksandrPanov

modules/wechat_qrcode/CMakeLists.txt

@@ -1,5 +1,5 @@
 set(the_description "WeChat QR code Detector")
-ocv_define_module(wechat_qrcode opencv_core opencv_imgproc opencv_dnn WRAP java objc python js)
+ocv_define_module(wechat_qrcode opencv_core opencv_imgproc opencv_objdetect opencv_dnn WRAP java objc python js)
 
 # iconv support isn't automatic on some systems
 if(CMAKE_VERSION VERSION_GREATER "3.11")

modules/wechat_qrcode/test/test_qrcode.cpp

@@ -6,6 +6,7 @@
 // Copyright (C) 2020 THL A29 Limited, a Tencent company. All rights reserved.
 
 #include "test_precomp.hpp"
+#include "opencv2/objdetect.hpp"
 
 namespace opencv_test {
 namespace {
@@ -289,5 +290,37 @@ INSTANTIATE_TEST_CASE_P(/**/, Objdetect_QRCode_Monitor, testing::ValuesIn(qrcode
 INSTANTIATE_TEST_CASE_P(/**/, Objdetect_QRCode_Curved, testing::ValuesIn(qrcode_images_curved));
 // INSTANTIATE_TEST_CASE_P(/**/, Objdetect_QRCode_Multi, testing::ValuesIn(qrcode_images_multiple));
 
+TEST(Objdetect_QRCode_Big, regression) {
+    string path_detect_prototxt, path_detect_caffemodel, path_sr_prototxt, path_sr_caffemodel;
+    string model_version = "_2021-01";
+    path_detect_prototxt = findDataFile("../dnn/wechat"+model_version+"/detect.prototxt", false);
+    path_detect_caffemodel = findDataFile("../dnn/wechat"+model_version+"/detect.caffemodel", false);
+    path_sr_prototxt = findDataFile("../dnn/wechat"+model_version+"/sr.prototxt", false);
+    path_sr_caffemodel = findDataFile("../dnn/wechat"+model_version+"/sr.caffemodel", false);
+
+    auto detector = wechat_qrcode::WeChatQRCode(path_detect_prototxt, path_detect_caffemodel, path_sr_prototxt,
+                                                path_sr_caffemodel);
+
+    const cv::String expect_msg = "OpenCV";
+    QRCodeEncoder::Params params;
+    params.version = 4; // 33x33
+    Ptr<QRCodeEncoder> qrcode_enc = cv::QRCodeEncoder::create(params);
+    Mat qrImage;
+    qrcode_enc->encode(expect_msg, qrImage);
+    Mat largeImage(4032, 3024, CV_8UC1);
+    const int pixInBlob = 4;
+    Size qrSize = Size((21+(params.version-1)*4)*pixInBlob,(21+(params.version-1)*4)*pixInBlob);
+    Mat roiImage = largeImage(Rect((largeImage.cols - qrSize.width)/2, (largeImage.rows - qrSize.height)/2,
+                                   qrSize.width, qrSize.height));
+    cv::resize(qrImage, roiImage, qrSize, 1., 1., INTER_NEAREST);
+
+    vector<Mat> points;
+    detector.setScaleFactor(0.25f);
+    auto decoded_info = detector.detectAndDecode(largeImage, points);
+    ASSERT_EQ(1ull, decoded_info.size());
+    ASSERT_EQ(expect_msg, decoded_info[0]);
+}
+
+
 }  // namespace
 }  // namespace opencv_test