C#安装OpenCvSharp4的实现步骤

using OpenCvSharp;
using OpenCvSharp.Extensions;

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace CvSharpDemo
{
    class Program
    {
        static void Main(string[] args)
        {
            int d = 100;
            //创建一张大小为400*600颜色为白色背景的三通道彩色图像
            Mat img = new Mat(400, 600, MatType.CV_8UC3, new Scalar(255, 255, 255));
            //
            Cv2.Line(img, 250, 100, 50, 200, new Scalar(0, 255, 0), 2);
            Cv2.Rectangle(img, new Rect(50, 50, d, d + 100), new Scalar(0, 0, 255), -1);
            Cv2.Circle(img, new Point(50, 50), 25, new Scalar(255, 255, 0), -1);

            Cv2.PutText(img, "OpenCV", new Point(220, 100), HersheyFonts.HersheyComplex, 3, Scalar.Blue, 15);
            Cv2.PutText(img, "OpenCV", new Point(220, 100), HersheyFonts.HersheyComplex, 3, Scalar.Yellow, 5);

            //显示图像
            Cv2.ImShow("img", img);
            //延时等待按键按下
            Cv2.WaitKey(0);
        }
    }
}