c# OpenCvSharp 形态学处理 MorphologyEx 开运算 闭运算

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>
        /// 开运算 闭运算
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnOpen_Click(object sender, EventArgs e)
        {
            // 加载图像
            Mat src = Cv2.ImRead(@"img\openclose.png");
            Cv2.ImShow("原图", src);
            Mat element = new Mat(5, 5, MatType.CV_8U, new Scalar(1));
            // 开运算
            // 先腐蚀后膨胀。能够排除小亮点。
            Mat dest_open = new Mat();
            Cv2.MorphologyEx(src, dest_open, MorphTypes.Open, element);
            Cv2.ImShow("开运算", dest_open);
            // 闭运算
            // 先膨胀后腐蚀。能够排除小黑点。
            Mat dest_close = new Mat();
            Cv2.MorphologyEx(src, dest_close, MorphTypes.Close, element);
            Cv2.ImShow("闭运算", dest_close);
        }
    }
}