vendor: OpenCV 5.0.0 snapshot at 755e50675d97db9b7d449d8bd6b09888646f6c6e

2026-08-22 00:11:13 +08:00
commit 12022378a3
3872 changed files with 2513409 additions and 0 deletions
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+#include <iostream>
+#include <opencv2/core.hpp>
+#include <opencv2/highgui.hpp>
+#include <opencv2/imgproc.hpp>
+
+using namespace std;
+using namespace cv;
+
+#include <opencv2/wechat_qrcode.hpp>
+int main(int argc, char* argv[]) {
+    cout << endl << argv[0] << endl << endl;
+    cout << "A demo program of WeChat QRCode Detector: " << endl;
+
+    Mat img;
+    int camIdx = -1;
+    if (argc > 1) {
+        bool live = strcmp(argv[1], "-camera") == 0;
+        if (live) {
+            camIdx = argc > 2 ? atoi(argv[2]) : 0;
+        } else {
+            img = imread(argv[1]);
+        }
+    } else {
+        cout << "    Usage: " << argv[0] << " <input_image>" << endl;
+        return 0;
+    }
+    // ONNX models: detect.onnx and sr.onnx
+    // available in opencv_extra/testdata/dnn/wechat_2021-01/
+    Ptr<wechat_qrcode::WeChatQRCode> detector;
+
+    try {
+        detector = makePtr<wechat_qrcode::WeChatQRCode>("detect.onnx", "sr.onnx");
+    } catch (const std::exception& e) {
+        cout <<
+            "\n---------------------------------------------------------------\n"
+            "Failed to initialize WeChatQRCode.\n"
+            "Please, provide 'detect.onnx' and 'sr.onnx' from\n"
+            "opencv_extra/testdata/dnn/wechat_2021-01/\n"
+            "and put them into the current directory.\n"
+            "---------------------------------------------------------------\n";
+        cout << e.what() << endl;
+        return 0;
+    }
+    string prevstr = "";
+    vector<Mat> points;
+
+    if (camIdx < 0) {
+        auto res = detector->detectAndDecode(img, points);
+        for (const auto& t : res) cout << t << endl;
+    } else {
+        VideoCapture cap(camIdx);
+        for(;;) {
+            cap >> img;
+            if (img.empty())
+                break;
+            auto res = detector->detectAndDecode(img, points);
+            for (const auto& t : res) {
+                if (t != prevstr)
+                    cout << t << endl;
+            }
+            if (!res.empty())
+                prevstr = res.back();
+            imshow("image", img);
+            if (waitKey(30) >= 0)
+                break;
+        }
+    }
+    return 0;
+}