can identifier validation button

src/openCvTest.js

@@ -0,0 +1,40 @@
+const cv = require('opencv4nodejs');
+
+// cv.imread('/Users/lpan/Downloads/Screenshot_2023-05-19-14-09-11-82_40deb401b9ffe8e1df2f1cc5ba480b12.jpg', function (err, im) {
+//     if (err) return console.error('error loading image');
+//
+//     var output = im.matchTemplate('../assets/templates/valid_btn_template.png', 3);
+//
+//     var matches = output.templateMatches(0.80, 1.0, 5, false);
+//
+//     console.log(matches);
+// });
+
+const findWaldo = async () => {
+    // Load images
+    const originalMat = await cv.imreadAsync(`/Users/lpan/Downloads/Screenshot_2023-05-19-14-09-11-82_40deb401b9ffe8e1df2f1cc5ba480b12.jpg`);
+    const waldoMat = await cv.imreadAsync(`${__dirname}/../assets/templates/valid_btn_template.png`);
+
+    // Match template (the brightest locations indicate the highest match)
+    const matched = originalMat.matchTemplate(waldoMat, 3);
+
+    // Use minMaxLoc to locate the highest value (or lower, depending of the type of matching method)
+    const minMax = matched.minMaxLoc();
+    const {maxLoc: {x, y}} = minMax;
+    console.log("x is " + x);
+    console.log("y is " + y);
+    // Draw bounding rectangle
+    originalMat.drawRectangle(
+        new cv.Rect(x, y, waldoMat.cols, waldoMat.rows),
+        new cv.Vec(0, 255, 0),
+        2,
+        cv.LINE_8
+    );
+
+    // Open result in new window
+    cv.imshow('We\'ve found Waldo!', originalMat);
+    cv.waitKey();
+};
+
+// noinspection JSIgnoredPromiseFromCall
+findWaldo();