using Emgu.CV;
using Emgu.CV.CvEnum;
using Emgu.CV.Structure;
using Emgu.CV.UI;
using Emgu.CV.Util;
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Web;


public class CommonUse
{
    /// <summary>
    /// 获取给定图像的最大矩形边界
    /// </summary>
    /// <param name="src"></param>
    /// <returns></returns>
    public VectorOfVectorOfPoint GetBoundaryOfPic(Mat src)
    {
        Mat dst = new Mat();
        Mat src_gray = new Mat();
        CvInvoke.CvtColor(src, src_gray, Emgu.CV.CvEnum.ColorConversion.Bgr2Gray);

        //边缘检测
        CvInvoke.Canny(src_gray, dst, 20, 255, 3, true);

        //寻找答题卡矩形边界（最大的矩形）
        VectorOfVectorOfPoint contours = new VectorOfVectorOfPoint();//创建VectorOfVectorOfPoint数据类型用于存储轮廓

        CvInvoke.FindContours(dst, contours, null, Emgu.CV.CvEnum.RetrType.External, Emgu.CV.CvEnum.ChainApproxMethod.ChainApproxSimple);//提取轮廓

        VectorOfVectorOfPoint max_contour = new VectorOfVectorOfPoint();//用于存储筛选过后的轮廓

        int ksize = contours.Size; //获取连通区域个数
        if (ksize == 1)
        {
            max_contour = contours;
        }
        else
        {
            //double maxLength = -1;//用于保存轮廓周长的最大值
            double maxArea = -1;//面积
            int index = -1;//轮廓周长的最大值的序号
            for (int i = 0; i < ksize; i++)
            {
                VectorOfPoint contour = contours[i];//获取独立的连通轮廓
                                                    //double length = CvInvoke.ArcLength(contour, true);//计算连通轮廓的周长

                //if (length > maxLength)
                //{
                //    maxLength = length;
                //    index = i;
                //}

                double area = CvInvoke.ContourArea(contour, false);
                if (area > maxArea)
                {
                    maxArea = area;
                    index = i;
                }
            }
            max_contour.Push(contours[index]);//筛选后的连通轮廓
        }
        return max_contour;
    }

    /// <summary>
    /// 进行透视操作，获取矫正后图像
    /// </summary>
    /// <param name="src"></param>
    /// <param name="result_contour"></param>
    public Mat MyWarpPerspective(Mat src, VectorOfVectorOfPoint max_contour)
    {
        //拟合答题卡的几何轮廓,保存点集pts并顺时针排序
        VectorOfPoint pts = new VectorOfPoint();//用于存放逼近的结果
        VectorOfPoint tempContour = max_contour[0];//临时用
        double result_length = CvInvoke.ArcLength(tempContour, true);
        CvInvoke.ApproxPolyDP(tempContour, pts, result_length * 0.02, true); //几何逼近，获取矩形4个顶点坐标

        if (pts.Size != 4)
        {
            //最大轮廓不是矩形时，将原图转灰度图后返回
            Mat src_gray = new Mat();
            CvInvoke.CvtColor(src, src_gray, Emgu.CV.CvEnum.ColorConversion.Bgr2Gray);//转灰度图
            return src_gray;
        }
        else
        {
            //Point[]转换为PointF[]类型
            PointF[] pts_src = Array.ConvertAll(pts.ToArray(), new Converter<Point, PointF>(PointToPointF));

            //点集顺时针排序
            pts_src = SortPointsByClockwise(pts_src);

            //确定透视变换的宽度、高度
            Size sizeOfRect = CalSizeOfRect(pts_src);
            int width = src.Bitmap.Width;
            int height = src.Bitmap.Height;

            //计算透视变换矩阵
            PointF[] pts_target = new PointF[] { new PointF(0, 0), new PointF(width - 1, 0) ,
                        new PointF(width - 1, height - 1) ,new PointF(0, height - 1)};

            //计算透视矩阵
            Mat data = CvInvoke.GetPerspectiveTransform(pts_src, pts_target);
            //进行透视操作
            Mat src_gray = new Mat();
            Mat mat_Perspective = new Mat();
            CvInvoke.CvtColor(src, src_gray, Emgu.CV.CvEnum.ColorConversion.Bgr2Gray);
            CvInvoke.WarpPerspective(src_gray, mat_Perspective, data, new Size(width, height));

            return mat_Perspective;
        }
    }

    /// <summary>
    /// 根据给定XY初始坐标、间距、数量画网格
    /// </summary>
    /// <param name="mat"></param>
    /// <param name="x"></param>
    /// <param name="x_interval"></param>
    /// <param name="x_num"></param>
    /// <param name="y"></param>
    /// <param name="y_interval"></param>
    /// <param name="y_num"></param>
    /// <returns></returns>
    public Bitmap DrawGridByXYDraw(Bitmap bmp, int x_begin, int x_interval, int x_num, int y_begin, int y_interval, int y_num)
    {


        Mat src = new Image<Bgr, byte>(bmp).Mat;
        //转换颜色空间
        Mat mat_color = new Mat();
        if (src.NumberOfChannels == 1)
            CvInvoke.CvtColor(src, mat_color, Emgu.CV.CvEnum.ColorConversion.Gray2Bgr);
        else
            mat_color = src;

        for (int i = 0; i <= x_num; i++)
        {
            //先画竖线
            Point p1 = new Point(x_begin + x_interval * i, y_begin);
            Point p2 = new Point(x_begin + x_interval * i, y_begin + y_interval * y_num);
            CvInvoke.Line(mat_color, p1, p2, new MCvScalar(0, 0, 255), 2);
        }
        for (int i = 0; i <= y_num; i++)
        {
            //再画横线
            Point p1 = new Point(x_begin, y_begin + y_interval * i);
            Point p2 = new Point(x_begin + x_interval * x_num, y_begin + y_interval * i);
            CvInvoke.Line(mat_color, p1, p2, new MCvScalar(0, 0, 255), 2);
        }
        return mat_color.Bitmap;
    }

    /// <summary>
    /// 获取偏移量 通过矩形查找
    /// </summary>
    /// <param name="bmp"></param>
    /// <param name="PointPath"></param>
    /// <param name="PostionXY"></param>
    /// <param name="width"></param>
    /// <param name="height"></param>
    /// <returns></returns>
    public Mat GetPostionXYByFindPostionAndXieLv(Mat color_mat, VectorOfVectorOfPoint selected_contours, string postionCut, out string PYPostion, Image<Gray, byte> currentFrame, out double xielv)
    {


        CommonUse commonUse = new CommonUse();
        string[] postionc = postionCut.Split(new string[] { "^" }, StringSplitOptions.RemoveEmptyEntries);
        PYPostion = "";
        Point GrXY;
        int PostionWW = 0;
        int PostionHH = 0;

        int Y2 = 0, Y1 = 0, X2 = 0, X1 = 0;

        for (int i = 0; i < postionc.Length; i++)
        {
            string[] postCutList = postionc[i].Split(',');
            int X = Convert.ToInt32(Convert.ToDouble(postCutList[0]));
            int Y = Convert.ToInt32(Convert.ToDouble(postCutList[1]));
            int W = Convert.ToInt32(Convert.ToDouble(postCutList[2]));
            int H = Convert.ToInt32(Convert.ToDouble(postCutList[3]));

            //var aaa=commonUse.DrawGridByXY(color_mat, X, W, 1, Y, H, 1);
            //ShowMatWaitKey("123", aaa, 0.8);

            string mx = "";
            try
            {
                mx = commonUse.GetValueAndDrawGrid_Find(color_mat.Bitmap, selected_contours, X, W, 1, Y, H, 1, "", out GrXY);
            }
            catch
            {
                xielv = -100;
                return null;
                mx = "null";
                GrXY = new Point(0, 0);
            }

            if (mx.Trim() != "A")
            {
                xielv = -100;
                return null;
                break;
            }
            Point Mx = GrXY;
            if (i == 0)//左上角
            {
                PYPostion = GrXY.X + "," + GrXY.Y;
                Y1 = GrXY.Y;
                X1 = GrXY.X;
            }
            if (i == 1)//右上角
            {
                PostionWW = GrXY.X;
            }
            if (i == 2)//左下角
            {
                PostionHH = GrXY.Y;
                X2 = GrXY.X;
                Y2 = GrXY.Y;
            }
        }
        string[] posList = PYPostion.Split(',');
        xielv = Math.Atan2((Y2 - Y1), (X2 - X1)) * 180 / Math.PI;
        int PostionX = Convert.ToInt32(posList[0]);
        int PostionY = Convert.ToInt32(posList[1]);
        int PostionW = PostionWW - PostionX;
        int PostionH = PostionHH - PostionY;
        //裁剪
        Rectangle rectangle = new Rectangle(PostionX, PostionY, PostionW, PostionH);
        Image<Gray, byte> Sub = new Image<Gray, byte>(currentFrame.Bitmap).GetSubRect(rectangle);
        Image<Gray, byte> CropImage = new Image<Gray, byte>(Sub.Size);
        CvInvoke.cvCopy(Sub, CropImage, IntPtr.Zero);
        //获取偏移量
        return CropImage.Mat;

    }

    /// <summary>
    /// 将给定点集顺时针排序
    /// </summary>
    /// <param name="pts_src">四边形四个顶点组成的点集</param>
    /// <returns></returns>
    public PointF[] SortPointsByClockwise(PointF[] pts_src)
    {
        if (pts_src.Length != 4) return null;//确保为四边形

        //求四边形中心点？坐标
        float x_average = 0;
        float y_average = 0;
        float x_sum = 0;
        float y_sum = 0;
        for (int i = 0; i < 4; i++)
        {
            x_sum += pts_src[i].X;
            y_sum += pts_src[i].Y;
        }
        x_average = x_sum / 4;
        y_average = y_sum / 4;
        PointF center = new PointF(x_average, y_average);

        PointF[] result = new PointF[4];
        for (int i = 0; i < 4; i++)
        {
            if (pts_src[i].X < center.X && pts_src[i].Y < center.Y)
            {
                result[0] = pts_src[i];//左上角点
                continue;
            }
            if (pts_src[i].X > center.X && pts_src[i].Y < center.Y)
            {
                result[1] = pts_src[i];//右上角点
                continue;
            }
            if (pts_src[i].X > center.X && pts_src[i].Y > center.Y)
            {
                result[2] = pts_src[i];//右下角点
                continue;
            }
            if (pts_src[i].X < center.X && pts_src[i].Y > center.Y)
            {
                result[3] = pts_src[i];//左下角点
                continue;
            }
        }

        return result;
    }

    /// <summary>
    /// 计算给定四个坐标点四边形的宽、高
    /// </summary>
    /// <param name="pts_src"></param>
    /// <returns></returns>
    public Size CalSizeOfRect(PointF[] pts_src)
    {
        if (pts_src.Length != 4) return new Size(0, 0);//确保为四边形

        //点集顺时针排序
        pts_src = SortPointsByClockwise(pts_src);

        //确定透视变换的宽度、高度
        int width;
        int height;

        double width1 = Math.Pow(pts_src[0].X - pts_src[1].X, 2) + Math.Pow(pts_src[0].Y - pts_src[1].Y, 2);
        double width2 = Math.Pow(pts_src[2].X - pts_src[3].X, 2) + Math.Pow(pts_src[2].Y - pts_src[3].Y, 2);

        width = width1 > width2 ? (int)Math.Sqrt(width1) : (int)Math.Sqrt(width2);//根号下a方+b方，且取宽度最大的

        double height1 = Math.Pow(pts_src[0].X - pts_src[3].X, 2) + Math.Pow(pts_src[0].Y - pts_src[3].Y, 2);
        double height2 = Math.Pow(pts_src[1].X - pts_src[2].X, 2) + Math.Pow(pts_src[1].Y - pts_src[2].Y, 2);

        height = height1 > height2 ? (int)Math.Sqrt(height1) : (int)Math.Sqrt(height2);

        return new Size(width, height);
    }

    /// <summary>
    /// Point转换为PointF类型
    /// </summary>
    /// <param name="p"></param>
    /// <returns></returns>
    public static PointF PointToPointF(Point p)
    {
        return new PointF(p.X, p.Y);
    }

    /// <summary>
    /// 形态学膨胀
    /// </summary>
    /// <param name="mat"></param>
    /// <returns></returns>
    public Mat MyDilate(Mat mat)
    {
        //1.膨胀，改善轮廓
        Mat struct_element = CvInvoke.GetStructuringElement(Emgu.CV.CvEnum.ElementShape.Cross,
            new Size(3, 3), new Point(-1, -1));//结构元素
        Mat mat_dilate = new Mat();
        CvInvoke.MorphologyEx(mat, mat_dilate, Emgu.CV.CvEnum.MorphOp.Dilate, struct_element, new Point(-1, -1), 1,
            Emgu.CV.CvEnum.BorderType.Default, new MCvScalar(0, 0, 0));//形态学膨胀

        return mat_dilate;
    }

    /// <summary>
    /// 筛选图中符合给定条件的轮廓
    /// </summary>
    /// <param name="mat_threshold">要提取轮廓的图片</param>
    /// <param name="width1">轮廓外接矩形大于该宽度值</param>
    /// <param name="width2">轮廓外接矩形小于该宽度值</param>
    /// <param name="height1">轮廓外接矩形大于该高度值</param>
    /// <param name="height2">轮廓外接矩形小于该高度值</param>
    public VectorOfVectorOfPoint GetUsefulContours(Mat mat, double ratio)
    {
        VectorOfVectorOfPoint contours = new VectorOfVectorOfPoint();//所有的轮廓
        VectorOfVectorOfPoint selected_contours = new VectorOfVectorOfPoint();//用于存储筛选过后的轮廓
        CvInvoke.FindContours(mat, contours, null, Emgu.CV.CvEnum.RetrType.List,
            Emgu.CV.CvEnum.ChainApproxMethod.ChainApproxSimple);//提取所有轮廓，操作过程中会对输入图像进行修改

        //筛选轮廓。筛选条件：长宽比大于给定值
        for (int i = 0; i < contours.Size; i++)
        {
            Rectangle rect = CvInvoke.BoundingRectangle(contours[i]);//外接矩形
            Mat temp = new Mat(mat, rect);//提取ROI矩形区域
            int pxNums = CvInvoke.CountNonZero(temp);//计算图像内非零像素个数

            double area = CvInvoke.ContourArea(contours[i]);//计算连通轮廓的面积
            double length = CvInvoke.ArcLength(contours[i], false); //计算连通轮廓的周长

            VectorOfPoint approx_curve = new VectorOfPoint();//用于存放逼近的结果
            CvInvoke.ApproxPolyDP(contours[i], approx_curve, length * 0.05, true);
            bool bo = ((rect.Width > 8 && rect.Height > 3) && (area > 200 && area < 8000) && (rect.Width < 50 && rect.Height < 50) && pxNums > 100);
            if (bo)
            {
                selected_contours.Push(contours[i]);
            }
        }

        return selected_contours;
    }

    /// <summary>
    /// 筛选图中符合给定条件的轮廓
    /// </summary>
    /// <param name="mat_threshold">要提取轮廓的图片</param>
    /// <param name="width1">轮廓外接矩形大于该宽度值</param>
    /// <param name="width2">轮廓外接矩形小于该宽度值</param>
    /// <param name="height1">轮廓外接矩形大于该高度值</param>
    /// <param name="height2">轮廓外接矩形小于该高度值</param>
    public VectorOfVectorOfPoint GetUsefulContoursDingWei(Mat mat, double ratio)
    {
        VectorOfVectorOfPoint contours = new VectorOfVectorOfPoint();//所有的轮廓
        VectorOfVectorOfPoint selected_contours = new VectorOfVectorOfPoint();//用于存储筛选过后的轮廓
        CvInvoke.FindContours(mat, contours, null, Emgu.CV.CvEnum.RetrType.External,
            Emgu.CV.CvEnum.ChainApproxMethod.ChainApproxSimple);//提取所有轮廓，操作过程中会对输入图像进行修改

        //筛选轮廓。筛选条件：长宽比大于给定值
        for (int i = 0; i < contours.Size; i++)
        {
            // 像素点数筛选
            //if (contours[i].Size <= 8 )
            //{
            //    continue;
            //}

            Rectangle rect = CvInvoke.BoundingRectangle(contours[i]);//外接矩形
            Mat temp = new Mat(mat, rect);//提取ROI矩形区域
            int pxNums = CvInvoke.CountNonZero(temp);//计算图像内非零像素个数

            double area = CvInvoke.ContourArea(contours[i]);//计算连通轮廓的面积
            double length = CvInvoke.ArcLength(contours[i], false); //计算连通轮廓的周长

            VectorOfPoint approx_curve = new VectorOfPoint();//用于存放逼近的结果
            CvInvoke.ApproxPolyDP(contours[i], approx_curve, length * 0.05, true);

            //外接矩形宽、高需在给定范围内
            // bool bo = (rect.Width / rect.Height >= ratio && (rect.Width > 3 && rect.Height > 2) && (area > 200 && area <= 4500));
            //bool bo = ((rect.Width > 3 && rect.Height > 2) && (area > 80 && area <= 15000));
            //bool bo = pxNums > 130 && pxNums < 300;
            bool bo = (approx_curve.Size == 4 && CvInvoke.IsContourConvex(approx_curve) && (rect.Width > 15 && rect.Height > 15) && (area > 550 && area < 2000) && (rect.Width < 50 && rect.Height < 50) && pxNums > 550);
            if (bo)
            {
                selected_contours.Push(contours[i]);
            }
        }
        return selected_contours;
    }



    /// <summary>
    /// 筛选图中符合给定条件的轮廓
    /// </summary>
    /// <param name="mat_threshold">要提取轮廓的图片</param>
    /// <param name="width1">轮廓外接矩形大于该宽度值</param>
    /// <param name="width2">轮廓外接矩形小于该宽度值</param>
    /// <param name="height1">轮廓外接矩形大于该高度值</param>
    /// <param name="height2">轮廓外接矩形小于该高度值</param>
    public VectorOfVectorOfPoint GetUsefulContoursDingWeiSanJiao(Mat mat, double ratio)
    {

        VectorOfVectorOfPoint selected_contours = new VectorOfVectorOfPoint();
        using (VectorOfVectorOfPoint contours = new VectorOfVectorOfPoint())
        {
            //  参数：输入图像，点向量，，检索类型，方法
            CvInvoke.FindContours(mat, contours, null, RetrType.List, ChainApproxMethod.ChainApproxSimple);
            for (int i = 0; i < contours.Size; i++)
            {
                using (VectorOfPoint contour = contours[i])  //点的标准矢量
                using (VectorOfPoint approxContour = new VectorOfPoint())
                {
                    // CvInvoke.ApproxPolyDP：指定精度的多边形曲线  参数：输入向量（轮廓），近似轮廓，近似精度，true：则闭合形状
                    // CvInvoke.ArcLength：计算轮廓长度   参数：轮廓，曲线是否闭合
                    CvInvoke.ApproxPolyDP(contour, approxContour, CvInvoke.ArcLength(contour, true) * 0.08, true);  //0.08的相似度
                                                                                                                    //CvInvoke.ContourArea：计算轮廓面积  参数：轮廓，返回值是否为绝对值
                                                                                                                    //仅考虑面积大于50的轮廓
                    if (CvInvoke.ContourArea(approxContour, false) > 500)
                    {
                        if (approxContour.Size == 3)//轮廓有3个顶点：三角形
                        {
                            Point[] points = approxContour.ToArray(); //转化为数组
                            selected_contours.Push(contours[i]);
                        }
                    }
                }
            }
            return selected_contours;

        }
    }




    /// <summary>
    /// 筛选图中符合给定条件的轮廓
    /// </summary>
    /// <param name="mat_threshold">要提取轮廓的图片</param>
    /// <param name="width1">轮廓外接矩形大于该宽度值</param>
    /// <param name="width2">轮廓外接矩形小于该宽度值</param>
    /// <param name="height1">轮廓外接矩形大于该高度值</param>
    /// <param name="height2">轮廓外接矩形小于该高度值</param>
    public VectorOfVectorOfPoint GetUsefulContoursYueJuan(Mat mat, double ratio)
    {
        VectorOfVectorOfPoint contours = new VectorOfVectorOfPoint();//所有的轮廓
        VectorOfVectorOfPoint selected_contours = new VectorOfVectorOfPoint();//用于存储筛选过后的轮廓
        CvInvoke.FindContours(mat, contours, null, Emgu.CV.CvEnum.RetrType.List,
            Emgu.CV.CvEnum.ChainApproxMethod.ChainApproxSimple);//提取所有轮廓，操作过程中会对输入图像进行修改

        //筛选轮廓。筛选条件：长宽比大于给定值
        for (int i = 0; i < contours.Size; i++)
        {
            Rectangle rect = CvInvoke.BoundingRectangle(contours[i]);//外接矩形
            Mat temp = new Mat(mat, rect);//提取ROI矩形区域
            int pxNums = CvInvoke.CountNonZero(temp);//计算图像内非零像素个数

            double area = CvInvoke.ContourArea(contours[i]);//计算连通轮廓的面积
            double length = CvInvoke.ArcLength(contours[i], false); //计算连通轮廓的周长

            VectorOfPoint approx_curve = new VectorOfPoint();//用于存放逼近的结果
            CvInvoke.ApproxPolyDP(contours[i], approx_curve, length * 0.02, true);

            //外接矩形宽、高需在给定范围内
            bool bo = (rect.Width / rect.Height >= ratio && (rect.Width > 3 && rect.Height > 2) && (area > 200 && area <= 4500));
            // bool bo = ((rect.Width > 3 && rect.Height > 2) && (area > 200 && area <= 4500));
            //bool bo = ((rect.Width > 3 && rect.Height > 2) && (area > 200 && area <= 4500));
            //bool bo = pxNums > 130 && pxNums < 300;
            if (bo)
            {
                selected_contours.Push(contours[i]);
            }
        }

        return selected_contours;
    }


    /// <summary>
    /// 根据给定的轮廓及范围信息计算涂卡的结果，返回int数组
    /// </summary>
    /// <param name="contours"></param>
    /// <param name="x"></param>
    /// <param name="x_interval"></param>
    /// <param name="x_num"></param>
    /// <param name="y"></param>
    /// <param name="y_interval"></param>
    /// <param name="y_num"></param>
    /// <returns></returns>
    public int[] GetTargetGravityFind(VectorOfVectorOfPoint contours, int x_begin, int x_interval, int x_num,
        int y_begin, int y_interval, int y_num, out Point gravityXY)
    {
        int[] result = new int[x_num];//结果数组
                                      //数组初值默认为-1
        for (int i = 0; i < x_num; i++)
        {
            result[i] = -1;
        }
        int x_max = x_begin + x_interval * x_num;
        int y_max = y_begin + y_interval * y_num;
        VectorOfVectorOfPoint targetContours = new VectorOfVectorOfPoint();
        Point[] gravity = GetGravityOfContours(contours);//轮廓中心点坐标

        gravityXY = new Point(0, 0);
        for (int i = 0; i < contours.Size; i++)
        {
            VectorOfPoint contour = contours[i];
            if (gravity[i].X < x_begin || gravity[i].X > x_max || gravity[i].Y < y_begin || gravity[i].Y > y_max)
            {
                continue;//判断中心点是否超出范围
            }
            int x_id = (int)Math.Floor((double)(gravity[i].X - x_begin) / x_interval);//向下取整
            int value = (int)Math.Floor((double)(gravity[i].Y - y_begin) / y_interval);

            if (result[x_id] != -1)
            {
                string str = string.Format("第{0}列存在多个答案！请擦拭干净后再扫描", x_id);
                result[x_id] = Convert.ToInt32(result[x_id].ToString() + value.ToString());
                gravityXY = gravity[i];

            }
            else
            {
                Rectangle rect = CvInvoke.BoundingRectangle(contour);
                //这里有修改
                result[x_id] = value;
                gravityXY = gravity[i];
                gravityXY.X = rect.X;
                gravityXY.Y = rect.Y;
                break;
            }
        }
        return result;
    }



    /// <summary>
    /// 根据给定的轮廓及范围信息计算涂卡的结果，返回int数组
    /// </summary>
    /// <param name="contours"></param>
    /// <param name="x"></param>
    /// <param name="x_interval"></param>
    /// <param name="x_num"></param>
    /// <param name="y"></param>
    /// <param name="y_interval"></param>
    /// <param name="y_num"></param>
    /// <returns></returns>
    public int[] GetTargetValues(VectorOfVectorOfPoint contours, int x_begin, int x_interval, int x_num,
        int y_begin, int y_interval, int y_num)
    {
        int[] result = new int[x_num];//结果数组
                                      //数组初值默认为-1
        for (int i = 0; i < x_num; i++)
        {
            result[i] = -1;
        }
        int x_max = x_begin + x_interval * x_num;
        int y_max = y_begin + y_interval * y_num;
        VectorOfVectorOfPoint targetContours = new VectorOfVectorOfPoint();
        Point[] gravity = GetGravityOfContours(contours);//轮廓中心点坐标

        for (int i = 0; i < contours.Size; i++)
        {
            VectorOfPoint contour = contours[i];
            if (gravity[i].X < x_begin || gravity[i].X > x_max || gravity[i].Y < y_begin || gravity[i].Y > y_max)
            {
                continue;//判断中心点是否超出范围
            }
            int x_id = (int)Math.Floor((double)(gravity[i].X - x_begin) / x_interval);//向下取整
            int value = (int)Math.Floor((double)(gravity[i].Y - y_begin) / y_interval);

            if (result[x_id] != -1)
            {
                string str = string.Format("第{0}列存在多个答案！请擦拭干净后再扫描", x_id);
                //MessageBox.Show(x_id.ToString());
                result[x_id] = Convert.ToInt32(result[x_id].ToString() + value.ToString());
                //result[x_id] = -1;
            }
            else
            {
                result[x_id] = value;
            }
        }
        return result;
    }

    /// <summary>
    /// 根据给定的轮廓及范围信息计算涂卡的结果，返回int数组
    /// </summary>
    /// <param name="contours"></param>
    /// <param name="x"></param>
    /// <param name="x_interval"></param>
    /// <param name="x_num"></param>
    /// <param name="y"></param>
    /// <param name="y_interval"></param>
    /// <param name="y_num"></param>
    /// <returns></returns>
    public int[] GetTargetValuesOnlyOne(VectorOfVectorOfPoint contours, int x_begin, int x_interval, int x_num,
        int y_begin, int y_interval, int y_num)
    {
        int[] result = new int[x_num];//结果数组
                                      //数组初值默认为-1
        for (int i = 0; i < x_num; i++)
        {
            result[i] = -1;
        }
        int x_max = x_begin + x_interval * x_num;
        int y_max = y_begin + y_interval * y_num;
        VectorOfVectorOfPoint targetContours = new VectorOfVectorOfPoint();
        Point[] gravity = GetGravityOfContours(contours);//轮廓中心点坐标

        for (int i = 0; i < contours.Size; i++)
        {
            VectorOfPoint contour = contours[i];
            if (gravity[i].X < x_begin || gravity[i].X > x_max || gravity[i].Y < y_begin || gravity[i].Y > y_max)
            {
                continue;//判断中心点是否超出范围
            }
            int x_id = (int)Math.Floor((double)(gravity[i].X - x_begin) / x_interval);//向下取整
            int value = (int)Math.Floor((double)(gravity[i].Y - y_begin) / y_interval);

            if (result[x_id] != -1)
            {
                //string str = string.Format("第{0}列存在多个答案！请擦拭干净后再扫描", x_id);
                //MessageBox.Show(x_id.ToString());
                //result[x_id] = Convert.ToInt32(result[x_id].ToString() + value.ToString());
                //result[x_id] = -1;
            }
            else
            {
                result[x_id] = value;
            }
        }
        return result;
    }



    // <summary>
    /// 根据给定的轮廓及范围信息计算涂卡的结果，返回int数组
    /// </summary>
    /// <param name="contours"></param>
    /// <param name="x"></param>
    /// <param name="x_interval"></param>
    /// <param name="x_num"></param>
    /// <param name="y"></param>
    /// <param name="y_interval"></param>
    /// <param name="y_num"></param>
    /// <returns></returns>
    public int[] GetTargetValues_L(VectorOfVectorOfPoint contours, int x_begin, int x_interval, int x_num,
        int y_begin, int y_interval, int y_num)
    {
        int[] result = new int[y_num];//结果数组
                                      //数组初值默认为-1
        for (int i = 0; i < y_num; i++)
        {
            result[i] = -1;
        }
        int x_max = x_begin + x_interval * x_num;
        int y_max = y_begin + y_interval * y_num;


        VectorOfVectorOfPoint targetContours = new VectorOfVectorOfPoint();
        Point[] gravity = GetGravityOfContours(contours);//轮廓中心点坐标

        for (int i = 0; i < contours.Size; i++)
        {
            VectorOfPoint contour = contours[i];

            if (gravity[i].X < x_begin || gravity[i].X > x_max || gravity[i].Y < y_begin || gravity[i].Y > y_max)
            {
                continue;//判断中心点是否超出范围
            }

            int x_id = (int)Math.Floor((double)(gravity[i].Y - y_begin) / y_interval);//向右取整数
            int value = (int)Math.Floor((double)(gravity[i].X - x_begin) / x_interval);

            if (result[x_id] != -1)
            {
                string str = string.Format("第{0}列存在多个答案！请擦拭干净后再扫描", x_id);
                result[x_id] = Convert.ToInt32(result[x_id].ToString() + value.ToString());

            }
            else
            {
                result[x_id] = value;
            }
        }
        return result;
    }

    // <summary>
    /// 根据给定的轮廓及范围信息计算涂卡的结果，返回int数组
    /// </summary>
    /// <param name="contours"></param>
    /// <param name="x"></param>
    /// <param name="x_interval"></param>
    /// <param name="x_num"></param>
    /// <param name="y"></param>
    /// <param name="y_interval"></param>
    /// <param name="y_num"></param>
    /// <returns></returns>
    public int[] GetTargetValues_L_only(VectorOfVectorOfPoint contours, int x_begin, int x_interval, int x_num,
        int y_begin, int y_interval, int y_num)
    {
        int[] result = new int[y_num];//结果数组
                                      //数组初值默认为-1
        for (int i = 0; i < y_num; i++)
        {
            result[i] = -1;
        }
        int x_max = x_begin + x_interval * x_num;
        int y_max = y_begin + y_interval * y_num;


        VectorOfVectorOfPoint targetContours = new VectorOfVectorOfPoint();
        Point[] gravity = GetGravityOfContours(contours);//轮廓中心点坐标

        for (int i = 0; i < contours.Size; i++)
        {
            VectorOfPoint contour = contours[i];

            if (gravity[i].X < x_begin || gravity[i].X > x_max || gravity[i].Y < y_begin || gravity[i].Y > y_max)
            {
                continue;//判断中心点是否超出范围
            }

            int x_id = (int)Math.Floor((double)(gravity[i].Y - y_begin) / y_interval);//向右取整数
            int value = (int)Math.Floor((double)(gravity[i].X - x_begin) / x_interval);

            if (result[x_id] != -1)
            {
                //string str = string.Format("第{0}列存在多个答案！请擦拭干净后再扫描", x_id);
                //result[x_id] = Convert.ToInt32(result[x_id].ToString() + value.ToString());

            }
            else
            {
                result[x_id] = value;
            }
        }
        return result;
    }










    /// <summary>
    /// 画出网格并返回填图结果
    /// </summary>
    /// <param name="img"></param>
    /// <param name="contours"></param>
    /// <param name="x_begin">左边距</param>
    /// <param name="x_interval">方块长度</param>
    /// <param name="x_num">方块数量</param>
    /// <param name="y_begin">上边距</param>
    /// <param name="y_interval">方块高度</param>
    /// <param name="y_num">方块竖数量</param>
    /// <param name="strText">输出文字</param>
    /// <returns></returns>
    //public string GetValueAndDrawGridZhunKao(ImageBox img, VectorOfVectorOfPoint contours,
    //    int x_begin, int x_interval, int x_num, int y_begin, int y_interval, int y_num, string strText)
    //{
    //    //画网格
    //    //Mat src = new Image<Bgr, byte>(img.Image.Bitmap).Mat;
    //    //Mat mat_grid = DrawGridByXY(img, x_begin, x_interval, x_num, y_begin, y_interval, y_num);

    //    int[] intArray = GetTargetValues(contours, x_begin, x_interval, x_num, y_begin, y_interval, y_num);
    //    int maxValue = GetMaxValueOfArray(intArray);//数组最大值

    //    string str = "";
    //    //str += Environment.NewLine;//回车
    //    str += strText;

    //    str += GetStringOfIntArray(intArray);


    //    return str;
    //}


    /// <summary>
    /// 画出网格并返回填图结果
    /// </summary>
    /// <param name="img"></param>
    /// <param name="contours"></param>
    /// <param name="x_begin">左边距</param>
    /// <param name="x_interval">方块长度</param>
    /// <param name="x_num">方块数量</param>
    /// <param name="y_begin">上边距</param>
    /// <param name="y_interval">方块高度</param>
    /// <param name="y_num">方块竖数量</param>
    /// <param name="strText">输出文字</param>
    /// <returns></returns>
    public string GetValueAndDrawGridZhunKao(Bitmap img, VectorOfVectorOfPoint contours,
        int x_begin, int x_interval, int x_num, int y_begin, int y_interval, int y_num, string strText)
    {
        //画网格
        int[] intArray = GetTargetValuesOnlyOne(contours, x_begin, x_interval, x_num, y_begin, y_interval, y_num);
        int maxValue = GetMaxValueOfArray(intArray);//数组最大值
        string str = "";
        str += strText;
        str += GetStringOfIntArray(intArray);
        return str;
    }


    ///// <summary>
    ///// 画出网格并返回填图结果
    ///// </summary>
    ///// <param name="img"></param>
    ///// <param name="contours"></param>
    ///// <param name="x_begin">左边距</param>
    ///// <param name="x_interval">方块长度</param>
    ///// <param name="x_num">方块数量</param>
    ///// <param name="y_begin">上边距</param>
    ///// <param name="y_interval">方块高度</param>
    ///// <param name="y_num">方块竖数量</param>
    ///// <param name="strText">输出文字</param>
    ///// <returns></returns>
    //public string GetValueAndDrawGrid(ImageBox img, VectorOfVectorOfPoint contours,
    //    int x_begin, int x_interval, int x_num, int y_begin, int y_interval, int y_num, string strText)
    //{
    //    //画网格
    //    //Mat src = new Image<Bgr, byte>(img.Image.Bitmap).Mat;
    //    //Mat mat_grid = DrawGridByXY(img, x_begin, x_interval, x_num, y_begin, y_interval, y_num);

    //    int[] intArray = GetTargetValues(contours, x_begin, x_interval, x_num, y_begin, y_interval, y_num);
    //    int maxValue = GetMaxValueOfArray(intArray);//数组最大值

    //    string str = "";
    //    //str += Environment.NewLine;//回车
    //    str += strText;
    //    if (maxValue >= 4 && maxValue <10)
    //    {
    //        str += GetStringOfIntArray(intArray);
    //    }
    //    else
    //    {
    //        if (maxValue >= 10)
    //        {
    //            str += GetStringOfIntArray(intArray, "ABCD");
    //        }
    //        else
    //        {
    //            str += GetStringOfIntArray(intArray, "ABCD");
    //        }

    //    }

    //    return str;
    //}

    /// <summary>
    /// 画出网格并返回填图结果
    /// </summary>
    /// <param name="img"></param>
    /// <param name="contours"></param>
    /// <param name="x_begin">左边距</param>
    /// <param name="x_interval">方块长度</param>
    /// <param name="x_num">方块数量</param>
    /// <param name="y_begin">上边距</param>
    /// <param name="y_interval">方块高度</param>
    /// <param name="y_num">方块竖数量</param>
    /// <param name="strText">输出文字</param>
    /// <returns></returns>
    public string GetValueAndDrawGrid(Bitmap img, VectorOfVectorOfPoint contours,
        int x_begin, int x_interval, int x_num, int y_begin, int y_interval, int y_num, string strText)
    {

        //画网格
        // Mat mat_grid = DrawGridByXY(img, x_begin, x_interval, x_num, y_begin, y_interval, y_num);

        int[] intArray = GetTargetValuesOnlyOne(contours, x_begin, x_interval, x_num, y_begin, y_interval, y_num);
        int maxValue = GetMaxValueOfArray(intArray);//数组最大值
        string str = "";
        //str += Environment.NewLine;//回车
        str += strText;
        if (maxValue >= 4 && maxValue < 10)
        {
            str += GetStringOfIntArray(intArray, "ABCDEFG");
        }
        else
        {
            if (maxValue >= 10)
            {
                str += GetStringOfIntArray(intArray, "ABCDEFG");
            }
            else
            {
                str += GetStringOfIntArray(intArray, "ABCDEFG");
            }

        }

        return str;
    }

    /// <summary>
    /// 画出网格并返回填图结果
    /// </summary>
    /// <param name="img"></param>
    /// <param name="contours"></param>
    /// <param name="x_begin">左边距</param>
    /// <param name="x_interval">方块长度</param>
    /// <param name="x_num">方块数量</param>
    /// <param name="y_begin">上边距</param>
    /// <param name="y_interval">方块高度</param>
    /// <param name="y_num">方块竖数量</param>
    /// <param name="strText">输出文字</param>
    /// <returns></returns>
    public string GetValueAndDrawGrid_L(Bitmap img, VectorOfVectorOfPoint contours,
        int x_begin, int x_interval, int x_num, int y_begin, int y_interval, int y_num, string strText)
    {
        //画网格
        //Mat mat_grid = DrawGridByXY(img, x_begin, x_interval, x_num, y_begin, y_interval, y_num);


        int[] intArray = GetTargetValues_L_only(contours, x_begin, x_interval, x_num, y_begin, y_interval, y_num);
        int maxValue = GetMaxValueOfArray(intArray);//数组最大值

        string str = "";
        //str += Environment.NewLine;//回车
        str += strText;
        if (maxValue >= 4 && maxValue < 10)
        {
            str += GetStringOfIntArray(intArray, "ABCDEFG");
        }
        else
        {
            if (maxValue >= 10)
            {
                str += GetStringOfIntArray(intArray, "ABCDEFG");
            }
            else
            {
                str += GetStringOfIntArray(intArray, "ABCDEFG");
            }

        }

        return str;
    }

    /// <summary>
    /// 画出网格并返回填图结果
    /// </summary>
    /// <param name="img"></param>
    /// <param name="contours"></param>
    /// <param name="x_begin">左边距</param>
    /// <param name="x_interval">方块长度</param>
    /// <param name="x_num">方块数量</param>
    /// <param name="y_begin">上边距</param>
    /// <param name="y_interval">方块高度</param>
    /// <param name="y_num">方块竖数量</param>
    /// <param name="strText">输出文字</param>
    /// <returns></returns>
    public string GetValueAndDrawGrid_Find(Bitmap img, VectorOfVectorOfPoint contours,
        int x_begin, int x_interval, int x_num, int y_begin, int y_interval, int y_num, string strText, out Point pFindX)
    {
        //画网格
        Point pFind;
        int[] intArray = GetTargetGravityFind(contours, x_begin, x_interval, x_num, y_begin, y_interval, y_num, out pFind);
        int maxValue = GetMaxValueOfArray(intArray);//数组最大值
        pFindX = pFind;
        string str = "";
        //str += Environment.NewLine;//回车
        str += strText;
        if (maxValue >= 4 && maxValue < 10)
        {
            str += GetStringOfIntArray(intArray);
        }
        else
        {
            if (maxValue >= 10)
            {
                str += GetStringOfIntArray(intArray, "ABCDEF");
            }
            else
            {
                str += GetStringOfIntArray(intArray, "ABCDEF");
            }

        }

        return str;
    }





    /// <summary>
    /// 画出网格并返回填图结果
    /// </summary>
    /// <param name="img"></param>
    /// <param name="contours"></param>
    /// <param name="x_begin">左边距</param>
    /// <param name="x_interval">方块长度</param>
    /// <param name="x_num">方块数量</param>
    /// <param name="y_begin">上边距</param>
    /// <param name="y_interval">方块高度</param>
    /// <param name="y_num">方块竖数量</param>
    /// <param name="strText">输出文字</param>
    /// <returns></returns>
    //public Mat GetDrawGrid(ImageBox img, VectorOfVectorOfPoint contours,
    //    int x_begin, int x_interval, int x_num, int y_begin, int y_interval, int y_num, string strText)
    //{
    //    //画网格
    //    Mat mat_grid = DrawGridByXY(img, x_begin, x_interval, x_num, y_begin, y_interval, y_num);
    //    return mat_grid;
    //}

    public Mat GetDrawGrid(Bitmap img, VectorOfVectorOfPoint contours,
        int x_begin, int x_interval, int x_num, int y_begin, int y_interval, int y_num, string strText)
    {
        //画网格
        Mat mat_grid = DrawGridByXY(img, x_begin, x_interval, x_num, y_begin, y_interval, y_num);
        return mat_grid;
    }


    ///// <summary>
    ///// 画出网格并返回填图结果
    ///// </summary>
    ///// <param name="img"></param>
    ///// <param name="contours"></param>
    ///// <param name="x_begin">左边距</param>
    ///// <param name="x_interval">方块长度</param>
    ///// <param name="x_num">方块数量</param>
    ///// <param name="y_begin">上边距</param>
    ///// <param name="y_interval">方块高度</param>
    ///// <param name="y_num">方块竖数量</param>
    ///// <param name="strText">输出文字</param>
    ///// <returns></returns>
    //public string GetValueAndDrawGridMore(ImageBox img, VectorOfVectorOfPoint contours,
    //    int x_begin, int x_interval, int x_num, int y_begin, int y_interval, int y_num, string strText)
    //{
    //    //画网格
    //    //Mat src = new Image<Bgr, byte>(img.Image.Bitmap).Mat;
    //    //Mat mat_grid = DrawGridByXY(img, x_begin, x_interval, x_num, y_begin, y_interval, y_num);

    //    int[] intArray = GetTargetValues(contours, x_begin, x_interval, x_num, y_begin, y_interval, y_num);
    //    int maxValue = GetMaxValueOfArray(intArray);//数组最大值

    //    string str = "";
    //    str += strText;
    //    if (maxValue >= 7&& maxValue <10)
    //    {
    //        str += GetStringOfIntArray(intArray);
    //    }
    //    else
    //    {
    //        str += GetStringOfIntArray(intArray, "ABCDEFG");
    //    }

    //    return str;
    //}





    /// <summary>
    /// 画出网格并返回填图结果
    /// </summary>
    /// <param name="img"></param>
    /// <param name="contours"></param>
    /// <param name="x_begin">左边距</param>
    /// <param name="x_interval">方块长度</param>
    /// <param name="x_num">方块数量</param>
    /// <param name="y_begin">上边距</param>
    /// <param name="y_interval">方块高度</param>
    /// <param name="y_num">方块竖数量</param>
    /// <param name="strText">输出文字</param>
    /// <returns></returns>
    public string GetValueAndDrawGridMore(Bitmap img, VectorOfVectorOfPoint contours,
        int x_begin, int x_interval, int x_num, int y_begin, int y_interval, int y_num, string strText)
    {

        //画网格
        //Mat src = new Image<Bgr, byte>(img.Image.Bitmap).Mat;
        //Mat mat_grid = DrawGridByXY(img, x_begin, x_interval, x_num, y_begin, y_interval, y_num);

        int[] intArray = GetTargetValues(contours, x_begin, x_interval, x_num, y_begin, y_interval, y_num);
        int maxValue = GetMaxValueOfArray(intArray);//数组最大值

        string str = "";
        str += strText;
        if (maxValue >= 7 && maxValue < 10)
        {
            str += GetStringOfIntArray(intArray);
        }
        else
        {
            str += GetStringOfIntArray(intArray, "ABCDEFG");
        }

        return str;
    }


    /// <summary>
    /// 画出网格并返回填图结果
    /// </summary>
    /// <param name="img"></param>
    /// <param name="contours"></param>
    /// <param name="x_begin">左边距</param>
    /// <param name="x_interval">方块长度</param>
    /// <param name="x_num">方块数量</param>
    /// <param name="y_begin">上边距</param>
    /// <param name="y_interval">方块高度</param>
    /// <param name="y_num">方块竖数量</param>
    /// <param name="strText">输出文字</param>
    /// <returns></returns>
    public string GetValueAndDrawGridMoreL(Bitmap img, VectorOfVectorOfPoint contours,
        int x_begin, int x_interval, int x_num, int y_begin, int y_interval, int y_num, string strText)
    {
        //画网格
        //Mat mat_grid = DrawGridByXY(img, x_begin, x_interval, x_num, y_begin, y_interval, y_num);

        int[] intArray = GetTargetValues_L(contours, x_begin, x_interval, x_num, y_begin, y_interval, y_num);
        int maxValue = GetMaxValueOfArray(intArray);//数组最大值

        string str = "";
        str += strText;
        if (maxValue >= 7 && maxValue < 10)
        {
            str += GetStringOfIntArray(intArray);
        }
        else
        {
            str += GetStringOfIntArray(intArray, "ABCDEFG");
        }
        return str;
    }





    /// <summary>
    /// 计算轮廓中心点坐标
    /// </summary>
    /// <param name="selected_contours">要计算中心点的轮廓</param>
    /// <returns></returns>
    public Point[] GetGravityOfContours(VectorOfVectorOfPoint selected_contours)
    {
        int ksize = selected_contours.Size;

        double[] m00 = new double[ksize];
        double[] m01 = new double[ksize];
        double[] m10 = new double[ksize];
        Point[] gravity = new Point[ksize];//用于存储轮廓中心点坐标
        MCvMoments[] moments = new MCvMoments[ksize];

        for (int i = 0; i < ksize; i++)
        {
            VectorOfPoint contour = selected_contours[i];
            //计算当前轮廓的矩
            moments[i] = CvInvoke.Moments(contour, false);


            m00[i] = moments[i].M00;
            m01[i] = moments[i].M01;
            m10[i] = moments[i].M10;
            int x = Convert.ToInt32(m10[i] / m00[i]);//计算当前轮廓中心点坐标
            int y = Convert.ToInt32(m01[i] / m00[i]);
            gravity[i] = new Point(x, y);

        }
        return gravity;
    }
    ///// <summary>
    ///// 根据给定XY初始坐标、间距、数量画网格
    ///// </summary>
    ///// <param name="mat"></param>
    ///// <param name="x"></param>
    ///// <param name="x_interval"></param>
    ///// <param name="x_num"></param>
    ///// <param name="y"></param>
    ///// <param name="y_interval"></param>
    ///// <param name="y_num"></param>
    ///// <returns></returns>
    //public Mat DrawGridByXY(ImageBox img, int x_begin, int x_interval, int x_num, int y_begin, int y_interval, int y_num)
    //{


    //    Mat src = new Image<Bgr, byte>(img.Image.Bitmap).Mat;

    //    //转换颜色空间
    //    Mat mat_color = new Mat();
    //    if (src.NumberOfChannels == 1)
    //        CvInvoke.CvtColor(src, mat_color, Emgu.CV.CvEnum.ColorConversion.Gray2Bgr);
    //    else
    //        mat_color = src;

    //    for (int i = 0; i <= x_num; i++)
    //    {
    //        //先画竖线
    //        Point p1 = new Point(x_begin + x_interval * i, y_begin);
    //        Point p2 = new Point(x_begin + x_interval * i, y_begin + y_interval * y_num);
    //        CvInvoke.Line(mat_color, p1, p2, new MCvScalar(0, 0, 255), 1);
    //    }

    //    for (int i = 0; i <= y_num; i++)
    //    {
    //        //再画横线
    //        Point p1 = new Point(x_begin, y_begin + y_interval * i);
    //        Point p2 = new Point(x_begin + x_interval * x_num, y_begin + y_interval * i);
    //        CvInvoke.Line(mat_color, p1, p2, new MCvScalar(0, 0, 255), 1);
    //    }

    //    img.Image = mat_color;


    //    return mat_color;
    //}

    /// <summary>
    /// 根据给定XY初始坐标、间距、数量画网格
    /// </summary>
    /// <param name="mat"></param>
    /// <param name="x"></param>
    /// <param name="x_interval"></param>
    /// <param name="x_num"></param>
    /// <param name="y"></param>
    /// <param name="y_interval"></param>
    /// <param name="y_num"></param>
    /// <returns></returns>
    public Mat DrawGridByXY(Bitmap img, int x_begin, int x_interval, int x_num, int y_begin, int y_interval, int y_num)
    {


        Mat src = new Image<Bgr, byte>(img).Mat;

        //转换颜色空间
        Mat mat_color = new Mat();
        if (src.NumberOfChannels == 1)
            CvInvoke.CvtColor(src, mat_color, Emgu.CV.CvEnum.ColorConversion.Gray2Bgr);
        else
            mat_color = src;

        for (int i = 0; i <= x_num; i++)
        {
            //先画竖线
            Point p1 = new Point(x_begin + x_interval * i, y_begin);
            Point p2 = new Point(x_begin + x_interval * i, y_begin + y_interval * y_num);
            CvInvoke.Line(mat_color, p1, p2, new MCvScalar(0, 0, 255), 1);
        }

        for (int i = 0; i <= y_num; i++)
        {
            //再画横线
            Point p1 = new Point(x_begin, y_begin + y_interval * i);
            Point p2 = new Point(x_begin + x_interval * x_num, y_begin + y_interval * i);
            CvInvoke.Line(mat_color, p1, p2, new MCvScalar(0, 0, 255), 1);
        }

        //img.Image = mat_color;


        return mat_color;
    }

    public Mat DrawGridByXY(Mat img, int x_begin, int x_interval, int x_num, int y_begin, int y_interval, int y_num)
    {


        Mat src = img;

        //转换颜色空间
        Mat mat_color = new Mat();
        if (src.NumberOfChannels == 1)
            CvInvoke.CvtColor(src, mat_color, Emgu.CV.CvEnum.ColorConversion.Gray2Bgr);
        else
            mat_color = src;

        for (int i = 0; i <= x_num; i++)
        {
            //先画竖线
            Point p1 = new Point(x_begin + x_interval * i, y_begin);
            Point p2 = new Point(x_begin + x_interval * i, y_begin + y_interval * y_num);
            CvInvoke.Line(mat_color, p1, p2, new MCvScalar(0, 0, 255), 1);
        }

        for (int i = 0; i <= y_num; i++)
        {
            //再画横线
            Point p1 = new Point(x_begin, y_begin + y_interval * i);
            Point p2 = new Point(x_begin + x_interval * x_num, y_begin + y_interval * i);
            CvInvoke.Line(mat_color, p1, p2, new MCvScalar(0, 0, 255), 1);
        }

        //img.Image = mat_color;


        return mat_color;
    }


    /// <summary>
    /// 画出给定轮廓
    /// </summary>
    /// <param name="mat"></param>
    /// <param name="contours"></param>
    /// <returns></returns>
    public Mat DrawContours(Mat mat, VectorOfVectorOfPoint contours)
    {
        //转换颜色空间
        Mat mat_color = new Mat();
        CvInvoke.CvtColor(mat, mat_color, Emgu.CV.CvEnum.ColorConversion.Gray2Bgr);

        CvInvoke.DrawContours(mat_color, contours, -1, new MCvScalar(255, 0, 0), 2);
        return mat_color;
    }

    /// <summary>
    /// 拼接给定int数组内容，并返回拼接后字符串
    /// </summary>
    /// <param name="arr"></param>
    /// <returns></returns>
    public string GetStringOfIntArray(int[] arr)
    {
        string str = "";
        foreach (int a in arr)
        {
            str += a.ToString() + "";
        }
        return str;
    }

    /// <summary>
    /// 拼接给定int数组内容，并返回拼接后字符串
    /// </summary>
    /// <param name="arr"></param>
    /// <returns></returns>
    public string GetStringOfIntArray(int[] arr, string ss = "ABCD")
    {
        string str = "";
        //char[] ch = new char[] { 'A', 'B', 'C', 'D', 'E', 'F', 'G' };
        char[] ch = ss.ToCharArray();
        foreach (int a in arr)
        {
            ///
            if (a >= 10)
            {
                string x = a.ToString();
                char[] cc = x.ToArray();

                int[] result = new int[cc.Length];

                for (int i = 0; i < cc.Length; i++)
                {
                    result[i] = Convert.ToInt32(x.Substring(i, 1));
                }
                Array.Sort(result);

                int[] finalResult = result;
                for (int j = 0; j < finalResult.Length; j++)
                {
                    if (finalResult[j] == -1)
                    {
                        str += "null";
                    }
                    else
                    {
                        str += ch[finalResult[j]];
                    }
                }
                str += " ";
            }
            else
            {
                if (a == -1)
                {
                    str += "null ";//未识别时，标示为空
                }
                else
                {
                    str += ch[a] + " ";
                }

            }
        }
        return str;
    }



    /// <summary>
    /// 获取一维int数组中最大值
    /// </summary>
    /// <param name="arr"></param>
    /// <returns></returns>
    public int GetMaxValueOfArray(int[] arr)
    {
        int[] dst = new int[arr.Length];
        Array.Copy(arr, dst, arr.Length);//深度复制数组，防止排序对原数组产生影响
        Array.Sort(dst);//数组排序
        int maxValue = dst[arr.Length - 1];//数组最大值
        return maxValue;
    }
    /// <summary>
    /// 显示图像，并等待按下任意按键后继续
    /// </summary>
    /// <param name="title"></param>
    /// <param name="mat"></param>
    /// <param name="zoomRatio"></param>
    public void ShowMatWaitKey(string title, Mat mat, double zoomRatio)
    {
        CvInvoke.Resize(mat, mat, new Size(), zoomRatio, zoomRatio, Inter.Cubic);
        CvInvoke.Imshow(title, mat);
        CvInvoke.WaitKey(0);
    }


    public Bitmap RotateByOrientation(Bitmap bitmap)
    {
        // 获取图片的方向信息并根据方向调整图片
        if (bitmap.PropertyIdList.Contains(0x0112))
        {
            var orientation = (int)bitmap.GetPropertyItem(0x0112).Value[0];
            switch (orientation)
            {
                case 2:
                    bitmap.RotateFlip(RotateFlipType.RotateNoneFlipX);
                    break;
                case 3:
                    bitmap.RotateFlip(RotateFlipType.Rotate180FlipNone);
                    break;
                case 4:
                    bitmap.RotateFlip(RotateFlipType.RotateNoneFlipY);
                    break;
                case 5:
                    bitmap.RotateFlip(RotateFlipType.Rotate90FlipX);
                    break;
                case 6:
                    bitmap.RotateFlip(RotateFlipType.Rotate90FlipNone);
                    break;
                case 7:
                    bitmap.RotateFlip(RotateFlipType.Rotate270FlipX);
                    break;
                case 8:
                    bitmap.RotateFlip(RotateFlipType.Rotate270FlipNone);
                    break;
            }
        }
        return bitmap;
    }


    /// <summary>
    /// 过滤红色
    /// </summary>
    /// <param name="bitmap"></param>
    /// <returns></returns>
    public Bitmap FilterRed(Bitmap bitmap)
    {
        CommonUse commonUse = new CommonUse();

        Image<Bgr, byte> src = new Image<Bgr, byte>(bitmap);

        Mat gray = new Mat();
        CvInvoke.CvtColor(src, gray, ColorConversion.Bgr2Gray);


        VectorOfMat channels = new VectorOfMat();
        CvInvoke.Split(src, channels);
        if (channels.Size < 3)
        {
            return bitmap;
        }
        Mat red = channels[2];
        //commonUse.ShowMatWaitKey("red", red, 0.5);

        Mat redBinary = new Mat();
        CvInvoke.Threshold(red, redBinary, 150, 255, ThresholdType.Binary);
        //commonUse.ShowMatWaitKey("red+binary", redBinary, 0.5);

        //Mat redDilate = new Mat();
        //Mat kernel = CvInvoke.GetStructuringElement(ElementShape.Rectangle, new Size(2, 2), new Point(-1, -1));
        //CvInvoke.Dilate(redBinary, redDilate, kernel, new Point(-1, -1), 1, BorderType.Default, new MCvScalar(0, 0, 0));

        //kernel = CvInvoke.GetStructuringElement(ElementShape.Ellipse, new Size(2, 2), new Point(-1, -1));
        //CvInvoke.MorphologyEx(redBinary, redDilate, MorphOp.Open, kernel, new Point(-1, -1), 1, BorderType.Default, new MCvScalar(0, 0, 0));
        //commonUse.ShowMatWaitKey("redDilate", redDilate, 0.5);

        return redBinary.Bitmap;
    }

}


public class ZhuguantiList
{
    public int QuestionSmallNum
    {
        get; set;
    }
    public Bitmap btm
    {
        get; set;
    }
    public string num
    {
        get; set;
    }
}



public class otherBitmaplist
{
    public Bitmap btm
    {
        get; set;
    }
    public string Text
    {
        get; set;
    }
}