OpenCVSharp 4.5 拉普拉斯算子

OpenCVSharp 4.5 跑一遍OpenCV官方教程（全为手敲代码，如有雷同都是我的错）

官方OpenCV教程链接：https://docs.opencv.org/4.5.0/d5/db5/tutorial_laplace_operator.html

核心函数： Laplacian() 

using System;
using OpenCvSharp;

namespace ConsoleApp1
{
    class tutorial14 : ITutorial
    {
        public void Run()
        {

            // Declare the variables we are going to use            
            int kernel_size = 3;
            int scale = 1;
            int delta = 0;
            MatType ddepth = MatType.CV_16S;

            const string window_name = "Laplace Demo";
            const string imageName = "I:\\csharp\\images\\lena.jpg";
            using (Mat src = new Mat(imageName, ImreadModes.Color))
            using (Mat src_gray = new Mat())
            using(Mat dst