c# OpenCvSharp 边缘检测 Laplacian 算子

using OpenCvSharp;
using OpenCvSharp.Extensions;
using DlibDotNet;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Threading;

namespace app
{
    public partial class FrmMain : Form
    {
        public FrmMain()
        {
            InitializeComponent();
        }

        /// <summary>
        /// Laplacian算子
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnLaplacian_Click(object sender, EventArgs e)
        {
            // 加载图像
            Mat src = Cv2.ImRead(@"img\star.png", ImreadModes.Grayscale);
            Cv2.ImShow("原图", src);

            Mat dst = new Mat();
            Mat abs_dst = new Mat();
            Cv2.Laplacian(src, dst, MatType.CV_16S, 3, 1, 0, BorderTypes.Default);
            Cv2.ConvertScaleAbs(dst, abs_dst);

            Cv2.ImShow("Laplacian算子", abs_dst);
        }

    }
}