无法在OpenCV.js中创建Mat

Question

我已经尝试在Web应用程序上使用opencv.js实现人脸检测。我能够成功加载运行时，但是每当我调用Mat类的构造函数时，我都会收到一个奇怪的错误

new cv.Mat(100, 100)

---

opencv.js:30 Uncaught (in promise) TypeError: Cannot use 'in' operator to search for 'width' in 100
    at Object.toWireType (opencv.js:30)
    at Mat.constructor_body (opencv.js:30)
    at Mat.<anonymous> (opencv.js:30)
    at new Mat (eval at createNamedFunction (opencv.js:30), <anonymous>:4:34)
    at Object.window.cv.onRuntimeInitialized (SplashView.vue?f176:10)
    at doRun (opencv.js:30)
    at run (opencv.js:30)
    at runCaller (opencv.js:30)
    at removeRunDependency (opencv.js:30)
    at receiveInstance (opencv.js:30)

Answer 1

您以错误的方式调用构造函数

let mat = new cv.Mat(size, type);

您的尺寸应为带有'width'和'height'的对象