c# OpenCvSharp 图片缩放 Resize

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>
        /// 放大
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnResizeBig_Click(object sender, EventArgs e)
        {
            Mat src = Cv2.ImRead(@"img\jzh.png");
            Mat dest = new Mat();

            Cv2.Resize(src, dest, new OpenCvSharp.Size(src.Cols * 2, src.Rows * 2), 0, 0, InterpolationFlags.Linear);

            Cv2.ImShow("src", src);
            Cv2.ImShow("放大", dest);
        }

        /// <summary>
        /// 缩小
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnResizeSmall_Click(object sender, EventArgs e)
        {
            Mat src = Cv2.ImRead(@"img\jzh.png");
            Mat dest = new Mat();

            Cv2.Resize(src, dest, new OpenCvSharp.Size(src.Cols / 2, src.Rows / 2), 0, 0, InterpolationFlags.Linear);

            Cv2.ImShow("src", src);
            Cv2.ImShow("缩小", dest);
        }
    }
}