hough变换检测直线c#

?using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Imaging;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
 
namespace Instrument_Recognition.ClassLib.Image
{
 
    class MyImageHoughLine
    {
 
        #region Need
        /// <summary>
        /// 生成并初始化一个8位灰度图像
        /// </summary>
        public static Bitmap CreateGrayscaleImage(int width, int height)
        {
 
            Bitmap bmp = new Bitmap(width, height, PixelFormat.Format8bppIndexed);
            // 设置调色板
            SetGrayscalePalette(bmp);
            return bmp;
         
}
 
        /// <summary>
        /// 设置位图的调色板至灰度模式

        /// </summary>
        private static void SetGrayscalePalette(Bitmap srcImg)
        {
 
            // 检查像素格式
            if (srcImg.PixelFormat != PixelFormat.Format8bppIndexed)
                throw new ArgumentException();
 
            // 获取调色板
            ColorPalette cp = srcImg.Palette;
            // 初始化调色板
            for (int i = 0; i < 256; i++)
            {
 
                cp.Entries[i] = Color.FromArgb(i, i, i);
             
}
            // 设置调色板
            srcImg.Palette = cp;
         
}
        #endregion
 
        /// <summary>
        /// hough变换测直线
        /// </summary>
        /// <param name="srcBitmap"></param>
        /// <param name="hough_space">精度，0~pi分配到多少格</param>
        /// <param name="threshold">阀值 （0,1）</param>
        /// <returns></returns>