无法使用 OpenCV.js 创建 Mat

Posted 2023-03-16

【中文标题】无法使用 OpenCV.js 创建 Mat

【英文标题】：Unable to create Mat using OpenCV.js

【发布时间】：2020-09-02 05:29:36

【问题描述】：

我正在使用opencv.js，当我调用Mat类的构造函数时出现错误

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)

【参考方案1】：

你以错误的方式调用构造函数

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

您的尺寸应该是具有“宽度”和“高度”属性的对象

size = 'width': 100, 'height': 100

或 [100, 100]

例子：

let mat = new cv.Mat([100, 100], cv.CV_8UC3)