c# OpenCvSharp 归一化 Normalize 增加亮度 降低亮度

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;

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

        /// <summary>
        /// 归一化
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnNormalize_Click(object sender, EventArgs e)
        {
            Mat src = Cv2.ImRead(@"img\jzh.png");
            Cv2.ImShow("原图", src);

            Mat normalize_add = new Mat();
            Mat normalize_reduce = new Mat();

            // 归一化 加强亮度
            Cv2.Normalize(src, normalize_add, 0, 300, NormTypes.MinMax);
            Cv2.ImShow("归一化 增加亮度", normalize_add);

            // 归一化 加强亮度
            Cv2.Normalize(src, normalize_reduce, 0, 150, NormTypes.MinMax);
            Cv2.ImShow("归一化 降低亮度", normalize_reduce);
        }
    }
}