using OpenCvSharp;
using PaintDotNet.Camera;
using PaintDotNet.CustomControl;
using System;
using System.Collections.Generic;
using System.Windows.Forms;

namespace PaintDotNet.Instrument
{
    /// <summary>
    /// 工具-直方图
    /// </summary>
    internal class HistogramDialog : FloatingToolForm
    {
        #region 初始化变量
        private AppWorkspace AppWorkspace;
        /// <summary>
        /// 一个矩阵数组，用来接收直方图,记得全部初始化
        /// </summary>
        private Mat[] oldHists = new Mat[] { new Mat(), new Mat(), new Mat() };
        /// <summary>
        /// 灰度图
        /// </summary>
        private bool isGray = false;
        /// <summary>
        /// BGR线条颜色
        /// </summary>
        private Scalar[] color = new Scalar[] { new Scalar(255, 0, 0, 255), new Scalar(0, 255, 0, 255), new Scalar(0, 0, 255, 255) };
        /// <summary>
        /// 计算gamma的查找表
        /// </summary>
        private Mat lookUpTable = new Mat(1, 256, MatType.CV_8U);
        #endregion

        #region 控件相关
        private Button button2;
        private Button button3;
        private Button button4;
        private Button button5;
        private Label label1;
        private Label label2;
        private Label label3;
        private NumericUpDown numericUpDown1;
        private Label label4;
        private TriangleTrackBar trackBar1;
        private Label label5;
        private Label label6;
        private TriangleTrackBar trackBar2;
        private Label label7;
        private TriangleTrackBar trackBar3;
        private SelectButton skipButton;
        private SelectButton logButton;
        private UCTrackBar ucTrackBar1;
        private NumericUpDown numericUpDown2;
        private PictureBox pictureBox1;

        private void InitializeLanguageText()
        {
            this.button2.Text = PdnResources.GetString("Menu.optimal.text");
            this.button4.Text = PdnResources.GetString("Menu.Gammavalue.text") + "0.45";
            this.button5.Text = PdnResources.GetString("Menu.Originalstate.text");
            this.label1.Text = PdnResources.GetString("Menu.luminance.text") + ":";
            this.label2.Text = PdnResources.GetString("Menu.Contrast.text") + ":";
            this.label3.Text = PdnResources.GetString("Menu.Gammavalue.text") + ":";
        }

        private void InitializeComponent()
        {
            this.pictureBox1 = new System.Windows.Forms.PictureBox();
            this.button2 = new System.Windows.Forms.Button();
            this.button3 = new System.Windows.Forms.Button();
            this.button4 = new System.Windows.Forms.Button();
            this.button5 = new System.Windows.Forms.Button();
            this.label1 = new System.Windows.Forms.Label();
            this.label2 = new System.Windows.Forms.Label();
            this.label3 = new System.Windows.Forms.Label();
            this.numericUpDown1 = new System.Windows.Forms.NumericUpDown();
            this.label4 = new System.Windows.Forms.Label();
            this.trackBar1 = new PaintDotNet.CustomControl.TriangleTrackBar();
            this.label5 = new System.Windows.Forms.Label();
            this.label6 = new System.Windows.Forms.Label();
            this.trackBar2 = new PaintDotNet.CustomControl.TriangleTrackBar();
            this.label7 = new System.Windows.Forms.Label();
            this.trackBar3 = new PaintDotNet.CustomControl.TriangleTrackBar();
            this.skipButton = new PaintDotNet.CustomControl.SelectButton();
            this.logButton = new PaintDotNet.CustomControl.SelectButton();
            this.ucTrackBar1 = new PaintDotNet.CustomControl.UCTrackBar();
            this.numericUpDown2 = new System.Windows.Forms.NumericUpDown();
            ((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).BeginInit();
            ((System.ComponentModel.ISupportInitialize)(this.numericUpDown1)).BeginInit();
            ((System.ComponentModel.ISupportInitialize)(this.numericUpDown2)).BeginInit();
            this.SuspendLayout();
            // 
            // pictureBox1
            // 
            this.pictureBox1.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom) 
            | System.Windows.Forms.AnchorStyles.Left) 
            | System.Windows.Forms.AnchorStyles.Right)));
            this.pictureBox1.BackgroundImageLayout = System.Windows.Forms.ImageLayout.Stretch;
            this.pictureBox1.Location = new System.Drawing.Point(12, 12);
            this.pictureBox1.Name = "pictureBox1";
            this.pictureBox1.Size = new System.Drawing.Size(256, 124);
            this.pictureBox1.SizeMode = System.Windows.Forms.PictureBoxSizeMode.StretchImage;
            this.pictureBox1.TabIndex = 1;
            this.pictureBox1.TabStop = false;
            // 
            // button2
            // 
            this.button2.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
            this.button2.Location = new System.Drawing.Point(126, 274);
            this.button2.Name = "button2";
            this.button2.Size = new System.Drawing.Size(75, 23);
            this.button2.TabIndex = 4;
            this.button2.Text = "最佳";
            this.button2.UseVisualStyleBackColor = true;
            // 
            // button3
            // 
            this.button3.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
            this.button3.Location = new System.Drawing.Point(241, 303);
            this.button3.Name = "button3";
            this.button3.Size = new System.Drawing.Size(75, 23);
            this.button3.TabIndex = 5;
            this.button3.Text = "MIN/MAX";
            this.button3.UseVisualStyleBackColor = true;
            // 
            // button4
            // 
            this.button4.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
            this.button4.Location = new System.Drawing.Point(12, 303);
            this.button4.Name = "button4";
            this.button4.Size = new System.Drawing.Size(75, 23);
            this.button4.TabIndex = 6;
            this.button4.Text = "伽马值0.45";
            this.button4.UseVisualStyleBackColor = true;
            // 
            // button5
            // 
            this.button5.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
            this.button5.Location = new System.Drawing.Point(126, 303);
            this.button5.Name = "button5";
            this.button5.Size = new System.Drawing.Size(75, 23);
            this.button5.TabIndex = 7;
            this.button5.Text = "原始状态";
            this.button5.UseVisualStyleBackColor = true;
            // 
            // label1
            // 
            this.label1.AutoSize = true;
            this.label1.Location = new System.Drawing.Point(25, 166);
            this.label1.Margin = new System.Windows.Forms.Padding(2, 0, 2, 0);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(41, 12);
            this.label1.TabIndex = 9;
            this.label1.Text = "亮度：";
            // 
            // label2
            // 
            this.label2.AutoSize = true;
            this.label2.Location = new System.Drawing.Point(13, 202);
            this.label2.Margin = new System.Windows.Forms.Padding(2, 0, 2, 0);
            this.label2.Name = "label2";
            this.label2.Size = new System.Drawing.Size(53, 12);
            this.label2.TabIndex = 10;
            this.label2.Text = "对比度：";
            // 
            // label3
            // 
            this.label3.AutoSize = true;
            this.label3.Location = new System.Drawing.Point(13, 238);
            this.label3.Margin = new System.Windows.Forms.Padding(2, 0, 2, 0);
            this.label3.Name = "label3";
            this.label3.Size = new System.Drawing.Size(53, 12);
            this.label3.TabIndex = 11;
            this.label3.Text = "伽马值：";
            // 
            // numericUpDown1
            // 
            this.numericUpDown1.Location = new System.Drawing.Point(242, 276);
            this.numericUpDown1.Margin = new System.Windows.Forms.Padding(2);
            this.numericUpDown1.Maximum = new decimal(new int[] {
            499,
            0,
            0,
            0});
            this.numericUpDown1.Name = "numericUpDown1";
            this.numericUpDown1.Size = new System.Drawing.Size(50, 21);
            this.numericUpDown1.TabIndex = 12;
            this.numericUpDown1.TextAlign = System.Windows.Forms.HorizontalAlignment.Right;
            this.numericUpDown1.Value = new decimal(new int[] {
            200,
            0,
            0,
            0});

            // 
            // label4
            // 
            this.label4.AutoSize = true;
            this.label4.Location = new System.Drawing.Point(296, 280);
            this.label4.Margin = new System.Windows.Forms.Padding(2, 0, 2, 0);
            this.label4.Name = "label4";
            this.label4.Size = new System.Drawing.Size(17, 12);
            this.label4.TabIndex = 13;
            this.label4.Text = "‰";
            // 
            // trackBar1
            // 
            this.trackBar1.Location = new System.Drawing.Point(67, 159);
            this.trackBar1.Maximum = 200;
            this.trackBar1.Minimum = -200;
            this.trackBar1.Name = "trackBar1";
            this.trackBar1.TrackBarName = "trackBar1";
            this.trackBar1.Size = new System.Drawing.Size(200, 30);
            this.trackBar1.TabIndex = 14;
            this.trackBar1.Value = -50;
            // 
            // label5
            // 
            this.label5.AutoSize = true;
            this.label5.Location = new System.Drawing.Point(272, 166);
            this.label5.Margin = new System.Windows.Forms.Padding(2, 0, 2, 0);
            this.label5.Name = "label5";
            this.label5.Size = new System.Drawing.Size(29, 12);
            this.label5.TabIndex = 15;
            this.label5.Text = "-0.5";
            // 
            // label6
            // 
            this.label6.AutoSize = true;
            this.label6.Location = new System.Drawing.Point(272, 202);
            this.label6.Margin = new System.Windows.Forms.Padding(2, 0, 2, 0);
            this.label6.Name = "label6";
            this.label6.Size = new System.Drawing.Size(29, 12);
            this.label6.TabIndex = 17;
            this.label6.Text = "1.00";
            // 
            // trackBar2
            // 
            this.trackBar2.Location = new System.Drawing.Point(67, 195);
            this.trackBar2.Maximum = 999;
            this.trackBar2.Minimum = 0;
            this.trackBar2.Name = "trackBar2";
            this.trackBar2.TrackBarName = "trackBar2";
            this.trackBar2.Size = new System.Drawing.Size(200, 30);
            this.trackBar2.TabIndex = 16;
            this.trackBar2.Value = 100;
            // 
            // label7
            // 
            this.label7.AutoSize = true;
            this.label7.Location = new System.Drawing.Point(272, 238);
            this.label7.Margin = new System.Windows.Forms.Padding(2, 0, 2, 0);
            this.label7.Name = "label7";
            this.label7.Size = new System.Drawing.Size(29, 12);
            this.label7.TabIndex = 19;
            this.label7.Text = "1.00";
            this.label7.Visible = false;
            // 
            // trackBar3
            // 
            this.trackBar3.Location = new System.Drawing.Point(67, 230);
            this.trackBar3.Maximum = 299;
            this.trackBar3.Minimum = 0;
            this.trackBar3.Name = "trackBar3";
            this.trackBar3.TrackBarName = "trackBar3";
            this.trackBar3.Size = new System.Drawing.Size(200, 30);
            this.trackBar3.TabIndex = 18;
            this.trackBar3.Value = 100;
            // 
            // skipButton
            // 
            this.skipButton.BackColor = System.Drawing.SystemColors.ControlDark;
            this.skipButton.BtnSelect = false;
            this.skipButton.BtnText = "skip";
            this.skipButton.Location = new System.Drawing.Point(275, 77);
            this.skipButton.Name = "skipButton";
            this.skipButton.Size = new System.Drawing.Size(41, 21);
            this.skipButton.TabIndex = 20;
            // 
            // logButton
            // 
            this.logButton.BackColor = System.Drawing.SystemColors.ControlDark;
            this.logButton.BtnSelect = false;
            this.logButton.BtnText = "log";
            this.logButton.Location = new System.Drawing.Point(275, 46);
            this.logButton.Name = "logButton";
            this.logButton.Size = new System.Drawing.Size(41, 21);
            this.logButton.TabIndex = 21;
            // 
            // ucTrackBar1
            // 
            this.ucTrackBar1.DcimalDigits = 0;
            this.ucTrackBar1.LineColor = System.Drawing.Color.FromArgb(((int)(((byte)(255)))), ((int)(((byte)(77)))), ((int)(((byte)(59)))));
            this.ucTrackBar1.LineWidth = 8F;
            this.ucTrackBar1.Location = new System.Drawing.Point(4, 139);
            this.ucTrackBar1.MaxValue = 255F;
            this.ucTrackBar1.MinValue = 0F;
            this.ucTrackBar1.Name = "ucTrackBar1";
            this.ucTrackBar1.Size = new System.Drawing.Size(274, 20);
            this.ucTrackBar1.TabIndex = 22;
            this.ucTrackBar1.Text = "ucTrackBar1";
            this.ucTrackBar1.Value1 = 0F;
            this.ucTrackBar1.Value2 = 127F;
            this.ucTrackBar1.Value3 = 255F;
            // 
            // numericUpDown2
            // 
            this.numericUpDown2.DecimalPlaces = 2;
            this.numericUpDown2.Increment = new decimal(new int[] {
            1,
            0,
            0,
            131072});
            this.numericUpDown2.Location = new System.Drawing.Point(266, 235);
            this.numericUpDown2.Margin = new System.Windows.Forms.Padding(2);
            this.numericUpDown2.Maximum = new decimal(new int[] {
            299,
            0,
            0,
            131072});
            this.numericUpDown2.Name = "numericUpDown2";
            this.numericUpDown2.Size = new System.Drawing.Size(50, 21);
            this.numericUpDown2.TabIndex = 23;
            this.numericUpDown2.TextAlign = System.Windows.Forms.HorizontalAlignment.Right;
            this.numericUpDown2.Value = new decimal(new int[] {
            100,
            0,
            0,
            131072});
            // 
            // HistogramDialog
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(325, 338);
            this.Controls.Add(this.numericUpDown2);
            this.Controls.Add(this.ucTrackBar1);
            this.Controls.Add(this.logButton);
            this.Controls.Add(this.skipButton);
            this.Controls.Add(this.label7);
            this.Controls.Add(this.trackBar3);
            this.Controls.Add(this.label6);
            this.Controls.Add(this.trackBar2);
            this.Controls.Add(this.label5);
            this.Controls.Add(this.trackBar1);
            this.Controls.Add(this.label4);
            this.Controls.Add(this.numericUpDown1);
            this.Controls.Add(this.label3);
            this.Controls.Add(this.label2);
            this.Controls.Add(this.label1);
            this.Controls.Add(this.button5);
            this.Controls.Add(this.button4);
            this.Controls.Add(this.button3);
            this.Controls.Add(this.button2);
            this.Controls.Add(this.pictureBox1);
            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle;
            this.Margin = new System.Windows.Forms.Padding(6);
            this.Name = "HistogramDialog";
            this.Text = "直方图";
            this.FormClosing += new System.Windows.Forms.FormClosingEventHandler(this.HistogramDialog_FormClosing);
            this.Controls.SetChildIndex(this.pictureBox1, 0);
            this.Controls.SetChildIndex(this.button2, 0);
            this.Controls.SetChildIndex(this.button3, 0);
            this.Controls.SetChildIndex(this.button4, 0);
            this.Controls.SetChildIndex(this.button5, 0);
            this.Controls.SetChildIndex(this.label1, 0);
            this.Controls.SetChildIndex(this.label2, 0);
            this.Controls.SetChildIndex(this.label3, 0);
            this.Controls.SetChildIndex(this.numericUpDown1, 0);
            this.Controls.SetChildIndex(this.label4, 0);
            this.Controls.SetChildIndex(this.trackBar1, 0);
            this.Controls.SetChildIndex(this.label5, 0);
            this.Controls.SetChildIndex(this.trackBar2, 0);
            this.Controls.SetChildIndex(this.label6, 0);
            this.Controls.SetChildIndex(this.trackBar3, 0);
            this.Controls.SetChildIndex(this.label7, 0);
            this.Controls.SetChildIndex(this.skipButton, 0);
            this.Controls.SetChildIndex(this.logButton, 0);
            this.Controls.SetChildIndex(this.ucTrackBar1, 0);
            this.Controls.SetChildIndex(this.numericUpDown2, 0);
            ((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).EndInit();
            ((System.ComponentModel.ISupportInitialize)(this.numericUpDown1)).EndInit();
            ((System.ComponentModel.ISupportInitialize)(this.numericUpDown2)).EndInit();
            this.ResumeLayout(false);
            this.PerformLayout();

        }
        #endregion

        public HistogramDialog(AppWorkspace AppWorkspace)
        {
            this.AppWorkspace = AppWorkspace;

            InitializeComponent();
            InitializeLanguageText();

            this.Text = PdnResources.GetString("Menu.Tools.Histogram.Text");

            if (this.AppWorkspace.ActiveDocumentWorkspace != null)
            {
                updateHistImg(oldHists);
                updateHistogramRect(false);
            }
            if(this.AppWorkspace != null)
                this.AppWorkspace.ActiveDocumentWorkspaceChanged += new EventHandler(ButtonFocus);
            
            AddAllEvent();
        }

        /// <summary>
        /// 更改按钮焦点
        /// </summary>
        /// <param name="dis">按钮区分</param>
        public void ButtonFocus(object sender, EventArgs e)
        {
            if(AppWorkspace != null && AppWorkspace.ActiveDocumentWorkspace != null)
            {
                // 最佳
                if (AppWorkspace.ActiveDocumentWorkspace.buttonType == 0)
                {
                    this.button2.Focus();
                }
                // 最大最小
                if (AppWorkspace.ActiveDocumentWorkspace.buttonType == 1)
                {
                    this.button3.Focus();
                }
                // 伽马45
                if (AppWorkspace.ActiveDocumentWorkspace.buttonType == 2)
                {
                    this.button4.Focus();
                }
                // 原始
                if (AppWorkspace.ActiveDocumentWorkspace.buttonType == 3)
                {
                    this.button5.Focus();
                }
            }
        }

        /// <summary>
        /// 重置Mat
        /// </summary>
        public void ResetMat()
        {
            if (this.AppWorkspace.ActiveDocumentWorkspace == null || this.AppWorkspace.ActiveDocumentWorkspace.CompositionSurface == null)
            {
                this.Visible = false;
                isGray = true;
                return;
            }

            this.RemoveAllEvent();

            Mat[] mats = Cv2.Split(this.AppWorkspace.ActiveDocumentWorkspace.BoxMat);

            Mat[] mats0 = new Mat[] { mats[0] };
            Mat[] mats1 = new Mat[] { mats[1] };
            Mat[] mats2 = new Mat[] { mats[2] };

            int[] channels0 = new int[] { 0 };
            int[] channels1 = new int[] { 0 };
            int[] channels2 = new int[] { 0 };
            int[] histsize = new int[] { 256 };
            Rangef[] range = new Rangef[1];
            range[0] = new Rangef(0.0F, 256.0F);
            Mat mask = new Mat();

            Cv2.CalcHist(mats0, channels0, mask, oldHists[0], 1, histsize, range);
            Cv2.CalcHist(mats1, channels1, mask, oldHists[1], 1, histsize, range);
            Cv2.CalcHist(mats2, channels2, mask, oldHists[2], 1, histsize, range);

            if (this.AppWorkspace.ActiveDocumentWorkspace != null)
            {
                //获取gamma值
                double gamma = this.AppWorkspace.ActiveDocumentWorkspace.HistogramGamma;
                this.trackBar3.Value = Math.Min(299, (int)(gamma * 100));
                numericUpDown2.Value = decimal.Parse(gamma.ToString("f2"));
                //获取对比度
                double alpha = this.AppWorkspace.ActiveDocumentWorkspace.HistogramAlpha;
                //获取亮度
                double beta = this.AppWorkspace.ActiveDocumentWorkspace.HistogramBeta;
                //计算对比度
                label6.Text = alpha.ToString("f2");
                trackBar2.Value = Math.Min(trackBar2.Maximum, (int)(double.Parse(label6.Text) * 100));
                //计算亮度
                if (beta != double.Parse(label5.Text))
                {
                    label5.Text = beta.ToString("f2");
                    trackBar1.Value = (int)(double.Parse(label5.Text) * 100);
                }
                this.numericUpDown1.Value = new decimal(new int[] { (int)this.AppWorkspace.ActiveDocumentWorkspace.HistogramPercent, 0, 0, 0});
                skipButton.BtnSelect = this.AppWorkspace.ActiveDocumentWorkspace.HistogramSkipEnabled;
                logButton.BtnSelect = this.AppWorkspace.ActiveDocumentWorkspace.HistogramLogEnabled;
            }

            this.updateHistImg(null);
            this.updateHistogramRect(true);
            this.AddAllEvent();
        }

        /// <summary>
        /// 绘制直方图
        /// </summary>
        /// <param name="hist"></param>
        /// <returns></returns>
        private unsafe void updateHistImg(Mat[] hists)
        {
            if (this.AppWorkspace.ActiveDocumentWorkspace == null)
            {
                return;
            }

            //分割图像
            //Mat[] mats = Cv2.Split(this.AppWorkspace.ActiveDocumentWorkspace.OldMat);
            Mat[] mats = Cv2.Split(this.AppWorkspace.ActiveDocumentWorkspace.BoxMat);
            Mat[] mats0 = new Mat[] { mats[0] };
            Mat[] mats1 = new Mat[] { mats[1] };
            Mat[] mats2 = new Mat[] { mats[2] };
            //判断是否灰度
            isGray = ((mats[0].Sum())[0] == (mats[1].Sum())[0] && (mats[1].Sum())[0] == (mats[2].Sum())[0]);
            
            if (hists == null)
            {
                hists = new Mat[] { new Mat(), new Mat(), new Mat() };//一个矩阵数组，用来接收直方图,记得全部初始化
                int[] channels0 = new int[] { 0 };//一个通道,初始化为通道0,这些东西可以共用设置一个就行
                int[] channels1 = new int[] { 0 };
                int[] channels2 = new int[] { 0 };
                int[] histsize = new int[] { 256 };//一个通道，初始化为256箱子
                Rangef[] range = new Rangef[1];//一个通道，范围
                range[0] = new Rangef(0.0F, 256.0F);
                Mat mask = new Mat();//不做掩码

                Cv2.CalcHist(mats0, channels0, mask, hists[0], 1, histsize, range);//对被拆分的图片单独进行计算
                Cv2.CalcHist(mats1, channels1, mask, hists[1], 1, histsize, range);//对被拆分的图片单独进行计算
                Cv2.CalcHist(mats2, channels2, mask, hists[2], 1, histsize, range);//对被拆分的图片单独进行计算

                if (logButton.BtnSelect)
                {
                    //取对数
                    for (int j = 0; j < hists.Length; j++)
                    {
                        List<float> ProbPixel = new List<float>();

                        for (int i = 0; i < hists[j].Rows; i++)
                        {
                            if (((float*)hists[j].Ptr(0))[i] == 0)
                            {
                                ((float*)hists[j].Ptr(0))[i] = ((float*)hists[j].Ptr(0))[i];
                                ProbPixel.Add(0);
                            }
                            else
                            {
                                ((float*)hists[j].Ptr(0))[i] = (float)Math.Log10(((float*)hists[j].Ptr(0))[i]/* + 9*/);
                                ProbPixel.Add(1);
                            }
                        }

                        double max1jVal = 0;
                        double min1jVal = 0;
                        //找到直方图中的最大值和最小值
                        Cv2.MinMaxLoc(hists[j], out min1jVal, out max1jVal);

                        if (min1jVal >= max1jVal)
                        {
                            continue;
                        }
                        //归一化到0~255，并根据AxioVision添加偏置值
                        for (int i = 0; i < hists[j].Rows; i++)
                        {
                            ((float*)hists[j].Ptr(0))[i] = (float)((((float*)hists[j].Ptr(0))[i] - 0) * 255.0 / (max1jVal - 0)) + (float)(min1jVal > 0 ? (ProbPixel[i] * min1jVal * 255.0 / max1jVal) : ProbPixel[i] * 5);
                        }
                    }
                }
                if (skipButton.BtnSelect)
                {
                    //去掉黑色部分 和 白色部分
                    for (int j = 0; j < hists.Length; j++)
                    {
                        ((float*)hists[j].Ptr(0))[0] = 0;
                        ((float*)hists[j].Ptr(0))[255] = 0;
                    }
                }
            }

            double max2Val = 0;
            double max1Val = 0;
            double max0Val = 0;
            double minVal = 0;
            //为了更好显示直方图细节，使用4倍尺寸绘制直方图
            int histSize = hists[0].Rows * 4;
            Mat histImg = new Mat(histSize, histSize, MatType.CV_8UC3, new Scalar(255, 255, 255));
            //找到直方图中的最大值和最小值
            Cv2.MinMaxLoc(hists[2], out minVal, out max2Val);
            Cv2.MinMaxLoc(hists[1], out minVal, out max1Val);
            Cv2.MinMaxLoc(hists[0], out minVal, out max0Val);
            double maxVal = Math.Max(max2Val, Math.Max(max0Val, max1Val));

            if (maxVal < 1)
                return;

            // 设置最大峰值为图像高度的90%
            double hpt = 0.9 * histSize;

            //灰度图的显示直方图较为简单，显示一个通道即可
            if (isGray)
            {
                Mat hist = hists[0];
                int lastY2 = histSize - 1;
                for (int h = 0; h < hists[0].Rows; h++)
                {
                    int intensity = (int)(hist.At<float>(h) * hpt / maxVal);
                    int lastY1 = lastY2;
                    lastY2 = histSize - intensity - 1 - (hist.At<float>(h) > 0 ? 4 : 0);
                    if (lastY2 < lastY1)
                    {
                        Cv2.Line(histImg, new OpenCvSharp.Point(h * 4, lastY1), new OpenCvSharp.Point(h * 4, Math.Min(lastY2, lastY1 - 2)), new Scalar(0, 0, 0, 255), 2, LineTypes.Link4);
                    }
                    else
                    {
                        Cv2.Line(histImg, new OpenCvSharp.Point(h * 4, lastY1), new OpenCvSharp.Point(h * 4, Math.Max(lastY2, lastY1 + 2)), new Scalar(0, 0, 0, 255), 2, LineTypes.Link4);
                    }
                }
            }
            //彩度图显示BGR三个通道的直方图
            else
            {
                int lineWidth = 2;
                for (int j = hists.Length - 1; j >= 0; j--)
                {
                    Mat hist = hists[j];
                    int lastY2 = histSize - 1;
                    for (int h = 0; h < hists[0].Rows; h++)
                    {
                        int intensity = (int)(hist.At<float>(h) * hpt / maxVal);
                        int lastY1 = lastY2;
                        lastY2 = histSize - intensity - 1 - (hist.At<float>(h) > 0 ? 4 : 0);
                        if (h > 0)
                        {
                            //显示0.5位置的直方图，这样与AxioVision效果更加近似
                            int lasty12 = (lastY1 + lastY2) / 2;
                            if (lasty12 < lastY1)
                            {
                                Cv2.Line(histImg, new OpenCvSharp.Point(h * 4 - 2, lastY1), new OpenCvSharp.Point(h * 4 - 2, Math.Min(lasty12, lastY1 - 2)), color[j], lineWidth, LineTypes.Link4);
                            }
                            else
                            {
                                Cv2.Line(histImg, new OpenCvSharp.Point(h * 4 - 2, lastY1), new OpenCvSharp.Point(h * 4 - 2, Math.Max(lasty12, lastY1 + 2)), color[j], lineWidth, LineTypes.Link4/*AntiAlias*/);
                            }
                            if (lastY2 < lasty12)
                            {
                                Cv2.Line(histImg, new OpenCvSharp.Point(h * 4, lasty12), new OpenCvSharp.Point(h * 4, Math.Min(lastY2, lasty12 - 2)), color[j], lineWidth, LineTypes.Link4);
                            }
                            else
                            {
                                Cv2.Line(histImg, new OpenCvSharp.Point(h * 4, lasty12), new OpenCvSharp.Point(h * 4, Math.Max(lastY2, lasty12 + 2)), color[j], lineWidth, LineTypes.Link4/*AntiAlias*/);
                            }
                        }
                        else
                        {
                            //灰度值为0的线的绘制
                            if (lastY2 < lastY1)
                            {
                                Cv2.Line(histImg, new OpenCvSharp.Point(h * 4, lastY1), new OpenCvSharp.Point(h * 4, Math.Min(lastY2, lastY1 - 2)), color[j], lineWidth, LineTypes.Link4);
                            }
                            else
                            {
                                Cv2.Line(histImg, new OpenCvSharp.Point(h * 4, lastY1), new OpenCvSharp.Point(h * 4, Math.Max(lastY2, lastY1 + 2)), color[j], lineWidth, LineTypes.Link4/*AntiAlias*/);
                            }
                        }
                    }
                }
            }

            this.pictureBox1.BackgroundImage = OpenCvSharp.Extensions.BitmapConverter.ToBitmap(histImg);
        }

        /// <summary>
        /// 将拟合点绘制到空白图上
        /// </summary>
        /// <param name="key_point">拟合点</param>
        /// <param name="n">拟合矩阵的数量</param>
        /// <param name="A">空白图</param>
        /// <returns></returns>
        private unsafe bool polynomial_curve_fit(OpenCvSharp.Point[] key_point, int n, Mat A)
        {
            int N = key_point.Length;
            //构造矩阵X	
            Mat X = new Mat(n + 1, n + 1, MatType.CV_64FC1, new Scalar(0));
            for (int i = 0; i < n + 1; i++)
            {
                for (int j = 0; j < n + 1; j++)
                {
                    ((double*)X.Ptr(i))[j] = 0;
                    for (int k = 0; k < N; k++)
                    {
                        ((double*)X.Ptr(i))[j] = X.At<double>(i, j) + (double)Math.Pow(key_point[k].X, i + j);
                    }
                }
            }
            //构造矩阵Y	
            Mat Y = new Mat(n + 1, 1, MatType.CV_64FC1, new Scalar(0));
            for (int i = 0; i < n + 1; i++)
            {
                ((double*)Y.Ptr(i))[0] = 0;//111
                for (int k = 0; k < N; k++)
                {
                    ((double*)Y.Ptr(i))[0] = Y.At<double>(i, 0) + (double)(Math.Pow(key_point[k].X, i) * key_point[k].Y);
                }
            }

            //求解矩阵A	
            Cv2.Solve(X, Y, A, DecompTypes.LU);

            return true;
        }

        /// <summary>
        /// 通过颜色通道去除像素点的千分比计算有效阈值
        /// </summary>
        /// <param name="hists"></param>
        /// <param name="percentValue"></param>
        /// <returns></returns>
        private OpenCvSharp.Point getStartIndex(Mat mat, Mat[] hists, float percentValue)
        {
            //灰度化图片取第一通道
            Mat histGray = hists[0];
            //彩色图片取灰度化后的通道
            if (!isGray)
            {
                OpenCvSharp.Point startIndex = new OpenCvSharp.Point(0, histGray.Rows);

                //计算三次
                OpenCvSharp.Point startIndex0 = this.getStartRange(mat, hists[0], percentValue);
                OpenCvSharp.Point startIndex1 = this.getStartRange(mat, hists[1], percentValue);
                OpenCvSharp.Point startIndex2 = this.getStartRange(mat, hists[2], percentValue);

                startIndex.X = Math.Min(startIndex0.X, Math.Min(startIndex1.X, startIndex2.X));
                startIndex.Y = Math.Max(startIndex0.Y, Math.Max(startIndex1.Y, startIndex2.Y));

                startIndex.Y = Math.Min(255 - 1, startIndex.Y);
                startIndex.X = Math.Max(startIndex.X, 1);
                startIndex.Y = Math.Max(startIndex.X + 1, startIndex.Y);

                return startIndex;
            }
            return this.getStartRange(mat, histGray, percentValue);
        }

        private OpenCvSharp.Point getStartRange(Mat mat, Mat histGray, float percentValue)
        {
            if (this.AppWorkspace.ActiveDocumentWorkspace == null)
            {
                return new OpenCvSharp.Point(1, 254); ;
            }
            //计算灰度分布密度
            //float totalPoints = this.AppWorkspace.ActiveDocumentWorkspace.OldMat.Cols * this.AppWorkspace.ActiveDocumentWorkspace.OldMat.Rows;
            float totalPoints = mat.Cols * mat.Rows;
            OpenCvSharp.Point startIndex = new OpenCvSharp.Point(0, histGray.Rows);
            bool foundStartTag = false;
            bool foundEndTag = false;
            //根据累计直方图分布计算左右阈值
            float equalizeHists = 0;
            for (int i = 0; i < histGray.Rows; ++i)
            {
                equalizeHists += ((float)(histGray.At<float>(i) / (totalPoints * 1.0))) * 1000;

                if (!foundStartTag && equalizeHists > percentValue)
                {
                    foundStartTag = true;
                    startIndex.X = i;
                }
                else if (equalizeHists >= 1000 - percentValue)
                {
                    foundEndTag = true;
                    startIndex.Y = i;
                }

                if (foundStartTag && foundEndTag)
                    break;
            }
            startIndex.Y = Math.Min(255 - 1, startIndex.Y);
            startIndex.X = Math.Max(startIndex.X, 1);
            startIndex.Y = Math.Max(startIndex.X + 1, startIndex.Y);
            return startIndex;
        }

        /// <summary>
        /// 更新直方图特征曲线
        /// </summary>
        /// <param name="updateThreePoints">是否需要更新三个控制点的位置</param>
        private void updateHistogramRect(bool updateThreePoints)
        {
            //为了更好显示直方图细节，使用4倍尺寸绘制直方图
            int histSize = 256 * 4;

            //创建用于绘制的深蓝色背景图像	
            Mat image = new Mat(histSize, histSize, MatType.CV_8UC4, new Scalar(0, 0, 0, 0));
            //输入拟合点  	
            List<OpenCvSharp.Point> points = new List<OpenCvSharp.Point>();

            //根据亮度和对比度计算左右阈值
            int grayMin = (int)(0 - (256.0 / (double.Parse(label6.Text) == 0 ? 0.01 : double.Parse(label6.Text)) + double.Parse(label5.Text) * 510.0) / 2.0);
            int grayMax = (int)((256.0 / (double.Parse(label6.Text) == 0 ? 0.01 : double.Parse(label6.Text)) - double.Parse(label5.Text) * 510.0) / 2.0);
            if (grayMin >= grayMax)
            {
                return;
            }
            if (updateThreePoints)
            {
                ucTrackBar1.Value1 = grayMin;
                ucTrackBar1.Value3 = grayMax;
            }

            //gamma运算，gamma值根据AxioVision对比 取最小值0.01进行计算
            double gamma = Math.Max(0.01, /*double.Parse(label7.Text)*/(double)numericUpDown2.Value);

            //计算Value2
            ucTrackBar1.Value2 = (float)Math.Max(grayMin, Math.Min(grayMax, Math.Pow(0.5, 1.0 / gamma) * (grayMax - grayMin) + grayMin));
            ucTrackBar1.Refresh();

            int lastY2 = histSize + 0;// histSize - 1;
            for (int h = 0; h <= 256; h++)
            {
                if (h < grayMin)
                {
                    points.Add(new OpenCvSharp.Point(h * 4, lastY2));
                    continue;
                }
                else if (h > grayMax)
                {
                    lastY2 = -1;// 0;
                    points.Add(new OpenCvSharp.Point(h * 4, lastY2));
                    continue;
                }
                int lastY1 = (int)Math.Round((1.0 - Math.Pow((h - grayMin) * 1.0 / (grayMax - grayMin), gamma)) * (histSize + 1/*histSize - 1*/)) - 1;
                lastY1 = Math.Min(lastY2, Math.Max(0, lastY1));
                if (lastY2 == lastY1)
                {
                    if (h == 0 || h == 256)
                    {
                        points.Add(new OpenCvSharp.Point(h * 4, lastY1));
                    }
                }
                else
                {
                    points.Add(new OpenCvSharp.Point(h * 4, lastY1));
                    lastY2 = lastY1;
                }
            }
            lastY2 = histSize + 0;
            //将第一个点的位置设置最底部，保证曲线平滑性
            List<List<OpenCvSharp.Point>> pointsIn = new List<List<OpenCvSharp.Point>>() { points };
            //绘制折线	
            Cv2.Polylines(image, pointsIn, false, new Scalar(0, 0, 0, 255), 4, LineTypes.Link8, 0);
            Mat A = new Mat(3 + 1, 1, MatType.CV_64FC1, new Scalar(0));
            polynomial_curve_fit(points.ToArray(), 3, A);
            List<OpenCvSharp.Point> points_fitted = new List<OpenCvSharp.Point>();
            List<double> dataFitted = new List<double>();
            dataFitted.Add(A.At<double>(0, 0));
            dataFitted.Add(A.At<double>(1, 0));
            dataFitted.Add(A.At<double>(2, 0));
            dataFitted.Add(A.At<double>(3, 0));
            for (int x = 0; x < histSize + 1; x++)
            {
                if (x < grayMin * 4)
                {
                    points_fitted.Add(new OpenCvSharp.Point(x, lastY2));
                    continue;
                }
                else if (x > grayMax * 4)
                {
                    lastY2 = -1;
                    points_fitted.Add(new OpenCvSharp.Point(x, lastY2));
                    continue;
                }
                double y = A.At<double>(0, 0) + A.At<double>(1, 0) * x + A.At<double>(2, 0) * Math.Pow(x, 2) + A.At<double>(3, 0) * Math.Pow(x, 3);
                points_fitted.Add(new OpenCvSharp.Point(x, y));
            }

            ////绘制折线
            this.pictureBox1.Image = OpenCvSharp.Extensions.BitmapConverter.ToBitmap(image);
        }

        /// <summary>
        /// 根据亮度、对比度、gamma对图片进行处理
        /// https://blog.csdn.net/kuweicai/article/details/78953017
        /// https://blog.csdn.net/ren365880/article/details/103875302
        /// https://zhuanlan.zhihu.com/p/92945623
        /// </summary>
        private unsafe void scrollMethod()
        {
            if (this.AppWorkspace.ActiveDocumentWorkspace == null)
            {
                return;
            }

            Mat[] mats = Cv2.Split(this.AppWorkspace.ActiveDocumentWorkspace.OldMat);
            //根据亮度和对比度计算左右阈值
            int grayMin = (int)(0 - (256.0 / (double.Parse(label6.Text) == 0 ? 0.01 : double.Parse(label6.Text)) + double.Parse(label5.Text) * 510.0) / 2.0);
            int grayMax = (int)((256.0 / (double.Parse(label6.Text) == 0 ? 0.01 : double.Parse(label6.Text)) - double.Parse(label5.Text) * 510.0) / 2.0);
            if (grayMin >= grayMax)
            {
                return;
            }
            Mat dst = new Mat();
            //如果是灰度化图片，则只需计算一个通道。对灰度值进行映射，BGR根据左右阈值做缩放操作
            if (isGray)
            {
                Cv2.Min(mats[0], new Mat(mats[0].Rows, mats[0].Cols, MatType.CV_8UC1, new Scalar(grayMax)), dst);
                Cv2.Max(dst, new Mat(mats[0].Rows, mats[0].Cols, MatType.CV_8UC1, new Scalar(grayMin)), dst);
                Cv2.Normalize(dst, dst, 0, 255, NormTypes.MinMax);
            }
            else
            {
                for (int j = 0; j < 3; j++)
                {
                    Cv2.Min(mats[j], new Mat(mats[j].Rows, mats[j].Cols, MatType.CV_8UC1, new Scalar(grayMax)), mats[j]);
                    Cv2.Max(mats[j], new Mat(mats[j].Rows, mats[j].Cols, MatType.CV_8UC1, new Scalar(grayMin)), mats[j]);
                }
                Cv2.Merge(mats, dst);
                Cv2.Normalize(dst, dst, 0, 255, NormTypes.MinMax);
            }

            /*Mat dst = this.AppWorkspace.ActiveDocumentWorkspace.OldMat;
            if (dst.Channels() > 3) dst = dst.CvtColor(ColorConversionCodes.BGRA2BGR);
            dst.ConvertTo(dst, dst.Type(), double.Parse(label6.Text), double.Parse(label5.Text));*/

            /*//灰度归一化
            dst.ConvertTo(dst, MatType.CV_64F, 1.0 / 255, 0);
            //gamma运算，gamma值根据AxioVision对比 取最小值0.01进行计算
            Cv2.Pow(dst, Math.Max(0.01, (double)numericUpDown2.Value), dst);
            dst.ConvertTo(dst, MatType.CV_8U, 255, 0);*/
            
            for (int i = 0; i < 256; ++i)
                lookUpTable.Set<byte>(0, i, (byte)(Math.Pow(i / 255.0, (double)numericUpDown2.Value) * 255.0));
            Cv2.LUT(dst, lookUpTable, dst);

            Document document = Document.FromImageMatForHistogram(dst, this.AppWorkspace.ActiveDocumentWorkspace.CompositionSurface);
            this.AppWorkspace.ActiveDocumentWorkspace.setDoc(document, false);
            this.AppWorkspace.ActiveDocumentWorkspace.Refresh();
        }
        
        private void HistogramDialog_FormClosing(object sender, FormClosingEventArgs e)
        {
            this.AppWorkspace.toolBar.RefreshBtnSelect(false, "Histogram");
            this.AppWorkspace.toolsPanel.RefreshBtnSelect(false, "Histogram");
        }

        /// <summary>
        /// 移除事件
        /// </summary>
        private void RemoveAllEvent()
        {
            /*this.button2.Click -= new System.EventHandler(this.button2_Click);
            this.button3.Click -= new System.EventHandler(this.button3_Click);
            this.button4.Click -= new System.EventHandler(this.button4_Click);
            this.button5.Click -= new System.EventHandler(this.button5_Click);
            this.numericUpDown1.ValueChanged -= new System.EventHandler(this.numericUpDown1_ValueChanged);
            this.label5.TextChanged -= new System.EventHandler(this.label5_Changed);
            this.label6.TextChanged -= new System.EventHandler(this.label6_Changed);
            this.label7.TextChanged -= new System.EventHandler(this.label7_Changed);
            this.skipButton.Click -= new System.EventHandler(this.skipButton_Click);
            this.logButton.Click -= new System.EventHandler(this.logButton_Click);
            this.ucTrackBar1.Value1Changed -= new System.EventHandler(this.ucTrackBar1_Value1Changed);
            this.ucTrackBar1.Value2Changed -= new System.EventHandler(this.ucTrackBar1_Value2Changed);
            this.ucTrackBar1.Value3Changed -= new System.EventHandler(this.ucTrackBar1_Value3Changed);
            this.numericUpDown2.ValueChanged -= new System.EventHandler(this.numericUpDown2_ValueChanged);*/

            this.button2.Click -= new System.EventHandler(this.EventIncident);
            this.button3.Click -= new System.EventHandler(this.EventIncident);
            this.button4.Click -= new System.EventHandler(this.EventIncident);
            this.button5.Click -= new System.EventHandler(this.EventIncident);
            this.numericUpDown1.ValueChanged -= new System.EventHandler(this.EventIncident);
            this.label5.TextChanged -= new System.EventHandler(this.EventIncident);
            this.label6.TextChanged -= new System.EventHandler(this.EventIncident);
            this.label7.TextChanged -= new System.EventHandler(this.EventIncident);
            this.skipButton.Click -= new System.EventHandler(this.EventIncident);
            this.logButton.Click -= new System.EventHandler(this.EventIncident);
            this.numericUpDown2.ValueChanged -= new System.EventHandler(this.EventIncident);

            this.ucTrackBar1.Value1Changed -= new System.EventHandler(this.ucTrackBar1_Value1Changed);
            this.ucTrackBar1.Value2Changed -= new System.EventHandler(this.ucTrackBar1_Value2Changed);
            this.ucTrackBar1.Value3Changed -= new System.EventHandler(this.ucTrackBar1_Value3Changed);

            this.ucTrackBar1.ValueMouseUp -= new System.EventHandler(this.EventIncident);

            this.trackBar1.TrackBarScroll -= new System.EventHandler(this.trackBar1_Scroll);
            this.trackBar2.TrackBarScroll -= new System.EventHandler(this.trackBar2_Scroll);
            this.trackBar3.TrackBarScroll -= new System.EventHandler(this.trackBar3_Scroll);

            this.trackBar1.TrackBarMouseUp -= new System.EventHandler(this.EventIncident);
            this.trackBar2.TrackBarMouseUp -= new System.EventHandler(this.EventIncident);
            this.trackBar3.TrackBarMouseUp -= new System.EventHandler(this.EventIncident);
        }

        /// <summary>
        /// 添加事件
        /// </summary>
        private void AddAllEvent()
        {
            /*this.button2.Click += new System.EventHandler(this.button2_Click);
            this.button3.Click += new System.EventHandler(this.button3_Click);
            this.button4.Click += new System.EventHandler(this.button4_Click);
            this.button5.Click += new System.EventHandler(this.button5_Click);
            this.numericUpDown1.ValueChanged += new System.EventHandler(this.numericUpDown1_ValueChanged);
            this.label5.TextChanged += new System.EventHandler(this.label5_Changed);
            this.label6.TextChanged += new System.EventHandler(this.label6_Changed);
            this.label7.TextChanged += new System.EventHandler(this.label7_Changed);
            this.skipButton.Click += new System.EventHandler(this.skipButton_Click);
            this.logButton.Click += new System.EventHandler(this.logButton_Click);
            this.ucTrackBar1.Value1Changed += new System.EventHandler(this.ucTrackBar1_Value1Changed);
            this.ucTrackBar1.Value2Changed += new System.EventHandler(this.ucTrackBar1_Value2Changed);
            this.ucTrackBar1.Value3Changed += new System.EventHandler(this.ucTrackBar1_Value3Changed);
            this.numericUpDown2.ValueChanged += new System.EventHandler(this.numericUpDown2_ValueChanged);*/

            this.button2.Click += new System.EventHandler(this.EventIncident);
            this.button3.Click += new System.EventHandler(this.EventIncident);
            this.button4.Click += new System.EventHandler(this.EventIncident);
            this.button5.Click += new System.EventHandler(this.EventIncident);
            this.numericUpDown1.ValueChanged += new System.EventHandler(this.EventIncident);
            this.label5.TextChanged += new System.EventHandler(this.EventIncident);
            this.label6.TextChanged += new System.EventHandler(this.EventIncident);
            this.label7.TextChanged += new System.EventHandler(this.EventIncident);
            this.skipButton.Click += new System.EventHandler(this.EventIncident);
            this.logButton.Click += new System.EventHandler(this.EventIncident);
            this.numericUpDown2.ValueChanged += new System.EventHandler(this.EventIncident);

            this.ucTrackBar1.Value1Changed += new System.EventHandler(this.ucTrackBar1_Value1Changed);
            this.ucTrackBar1.Value2Changed += new System.EventHandler(this.ucTrackBar1_Value2Changed);
            this.ucTrackBar1.Value3Changed += new System.EventHandler(this.ucTrackBar1_Value3Changed);

            this.ucTrackBar1.ValueMouseUp += new System.EventHandler(this.EventIncident);

            this.trackBar1.TrackBarScroll += new System.EventHandler(this.trackBar1_Scroll);
            this.trackBar2.TrackBarScroll += new System.EventHandler(this.trackBar2_Scroll);
            this.trackBar3.TrackBarScroll += new System.EventHandler(this.trackBar3_Scroll);

            this.trackBar1.TrackBarMouseUp += new System.EventHandler(this.EventIncident);
            this.trackBar2.TrackBarMouseUp += new System.EventHandler(this.EventIncident);
            this.trackBar3.TrackBarMouseUp += new System.EventHandler(this.EventIncident);
        }

        /// <summary>
        /// 所有事件的统一入口
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        public void EventIncident(object sender, EventArgs e)
        {
            if (this.AppWorkspace.ActiveDocumentWorkspace == null)
            {
                MessageBox.Show(PdnResources.GetString("Menu.Pleaseopenthepicture.Text"));
                return;
            }
            //移除事件
            this.RemoveAllEvent();

            string controlName = ((Control)sender).Name;
            switch(controlName)
            {
                case "button2":
                    this.BestButtonMethod();
                    this.EventIncidentBranch(null);
                    this.SaveParameter();
                    this.AppWorkspace.MaxMinBest(true, false, false, false);
                    break;
                case "button3":
                    this.MaxMinButtonMethod();
                    this.EventIncidentBranch(null);
                    this.SaveParameter();
                    this.AppWorkspace.MaxMinBest(false, true, false, false);
                    break;
                case "button4":
                    this.Gamma45ButtonMethod();
                    this.EventIncidentBranch(null);
                    this.SaveParameter();
                    this.AppWorkspace.MaxMinBest(false, false, false, true);
                    break;
                case "button5":
                    this.OriginButtonMethod();
                    Document document = Document.FromImageMat(this.AppWorkspace.ActiveDocumentWorkspace.CompositionSurface.BackUpMat);
                    this.AppWorkspace.ActiveDocumentWorkspace.setDoc(document, false);
                    this.AppWorkspace.ActiveDocumentWorkspace.Refresh();
                    this.EventIncidentBranch(null, false);
                    this.SaveParameter();
                    this.AppWorkspace.MaxMinBest(false, false, true, false);
                    break;
                case "skipButton":
                    this.skipButton.BtnSelect = !skipButton.BtnSelect;
                    this.AppWorkspace.ActiveDocumentWorkspace.HistogramSkipEnabled = skipButton.BtnSelect;
                    this.updateHistImg(null);
                    break;
                case "logButton":
                    this.logButton.BtnSelect = !logButton.BtnSelect;
                    this.AppWorkspace.ActiveDocumentWorkspace.HistogramLogEnabled = logButton.BtnSelect;
                    this.updateHistImg(null);
                    break;
                case "ucTrackBar1":
                case "ucTrackBar2":
                case "ucTrackBar3":
                case "numericUpDown1":
                case "trackBar1":
                case "label5":
                case "label6":
                case "trackBar2":
                case "label7":
                case "trackBar3":
                case "numericUpDown2":
                case "triangleButtonSubtract":
                case "triangleButtonPlus":
                    EventIncidentBranch(controlName);
                    break;
                default:
                    break;
            }

            //添加事件
            this.AddAllEvent();
        }

        public void SaveParameter()
        {
            if (this.AppWorkspace.ActiveDocumentWorkspace != null)
            {
                this.AppWorkspace.ActiveDocumentWorkspace.HistogramAlpha = double.Parse(label6.Text);
                this.AppWorkspace.ActiveDocumentWorkspace.HistogramBeta = double.Parse(label5.Text);
                this.AppWorkspace.ActiveDocumentWorkspace.HistogramPercent = (int)numericUpDown1.Value;
                this.AppWorkspace.ActiveDocumentWorkspace.HistogramGamma = double.Parse(numericUpDown2.Value.ToString());
            }
        }

        /// <summary>
        /// 最佳
        /// </summary>
        public void BestButtonMethod()
        {
            OpenCvSharp.Point startIndex = this.getStartIndex(this.AppWorkspace.ActiveDocumentWorkspace.BoxMat/*this.AppWorkspace.ActiveDocumentWorkspace.OldMat*/, 
                oldHists, (float)numericUpDown1.Value);

            //计算对比度
            label6.Text = (256.0 / (startIndex.Y - startIndex.X)).ToString("f2");
            trackBar2.Value = Math.Min(trackBar2.Maximum, (int)(double.Parse(label6.Text) * 100));
            //计算亮度
            label5.Text = ((0 - startIndex.X - startIndex.Y) / 510.0).ToString("f2");
            trackBar1.Value = (int)(double.Parse(label5.Text) * 100);
        }

        /// <summary>
        /// 最大最小
        /// </summary>
        public void MaxMinButtonMethod()
        {
            OpenCvSharp.Point startIndex = this.getStartIndex(this.AppWorkspace.ActiveDocumentWorkspace.BoxMat/*this.AppWorkspace.ActiveDocumentWorkspace.OldMat*/,
                oldHists, 0);

            //计算对比度
            label6.Text = (256.0 / (startIndex.Y - startIndex.X)).ToString("f2");
            trackBar2.Value = Math.Min(trackBar2.Maximum, (int)(double.Parse(label6.Text) * 100));
            //计算亮度
            label5.Text = ((0 - startIndex.X - startIndex.Y) / 510.0).ToString("f2");
            trackBar1.Value = (int)(double.Parse(label5.Text) * 100);
        }

        /// <summary>
        /// 原始状态
        /// </summary>
        public void OriginButtonMethod()
        {
            this.trackBar1.Value = -50;
            this.trackBar2.Value = 100;
            this.trackBar3.Value = 100;
            label5.Text = (trackBar1.Value / 100.0).ToString("f2");
            label6.Text = (trackBar2.Value / 100.0).ToString("f2");
            numericUpDown2.Value = decimal.Parse((trackBar3.Value / 100.0).ToString("f2"));
        }

        /// <summary>
        /// 伽马0.45
        /// </summary>
        public void Gamma45ButtonMethod()
        {
            this.trackBar3.Value = 45;
            this.numericUpDown2.Value = decimal.Parse((trackBar3.Value / 100.0).ToString("f2"));
        }

        /// <summary>
        /// 重新处理图片
        /// https://blog.csdn.net/qq_20095389/article/details/83658878
        /// https://blog.csdn.net/lantishua/article/details/46377325
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        public void EventIncidentBranch(string sender, bool calc = true)
        {
            switch (sender)
            {
                case "trackBar1":
                    this.label5.Text = (trackBar1.Value / 100.0).ToString("f2");
                    break;
                case "trackBar2":
                    this.label6.Text = (trackBar2.Value / 100.0).ToString("f2");
                    break;
                case "trackBar3":
                    this.numericUpDown2.Value = decimal.Parse((trackBar3.Value / 100.0).ToString("f2"));
                    break;
                case "label6":
                    if(this.AppWorkspace.ActiveDocumentWorkspace != null)
                        this.AppWorkspace.ActiveDocumentWorkspace.HistogramAlpha = double.Parse(label6.Text);
                    break;
                case "label5":
                    if (this.AppWorkspace.ActiveDocumentWorkspace != null)
                        this.AppWorkspace.ActiveDocumentWorkspace.HistogramBeta = double.Parse(label5.Text);
                    break;
                case "numericUpDown1":
                    if (this.AppWorkspace.ActiveDocumentWorkspace != null)
                        this.AppWorkspace.ActiveDocumentWorkspace.HistogramPercent = (int)numericUpDown1.Value;
                    break;
                case "numericUpDown2":
                    if (this.AppWorkspace.ActiveDocumentWorkspace != null)
                        this.AppWorkspace.ActiveDocumentWorkspace.HistogramGamma = double.Parse(numericUpDown2.Value.ToString());
                    trackBar3.Value = (int)(numericUpDown2.Value * 100);
                    break;
                default:
                    this.label5.Text = (trackBar1.Value / 100.0).ToString("f2");
                    this.label6.Text = (trackBar2.Value / 100.0).ToString("f2");
                    this.numericUpDown2.Value = decimal.Parse((trackBar3.Value / 100.0).ToString("f2"));
                    break;
            }
            
            //重新计算
            if(calc)
                this.scrollMethod();

            //更新直方图
            this.updateHistogramRect(true);
        }

        /// <summary>
        /// 拖动左侧三角形
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void ucTrackBar1_Value1Changed(object sender, EventArgs e)
        {
            this.RemoveAllEvent();
            OpenCvSharp.Point startIndex = new OpenCvSharp.Point(ucTrackBar1.Value1, ucTrackBar1.Value3);
            //计算对比度
            label6.Text = (256.0 / (startIndex.Y - startIndex.X)).ToString("f2");
            trackBar2.Value = Math.Min(trackBar2.Maximum, (int)(double.Parse(label6.Text) * 100));
            //计算亮度
            label5.Text = ((0 - startIndex.X - startIndex.Y) / 510.0).ToString("f2");
            trackBar1.Value = (int)(double.Parse(label5.Text) * 100);
            this.AddAllEvent();
        }

        /// <summary>
        /// 拖动中间三角形
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void ucTrackBar1_Value2Changed(object sender, EventArgs e)
        {
            this.RemoveAllEvent();
            //计算gamma值
            double gamma = 1.0 / Math.Log((ucTrackBar1.Value2 - ucTrackBar1.Value1) / (ucTrackBar1.Value3 - ucTrackBar1.Value1), 0.5);
            gamma = Math.Max(0.01, gamma);
            this.trackBar3.Value = Math.Min(299, (int)(gamma * 100));
            numericUpDown2.Value = decimal.Parse(Math.Min(2.99, gamma).ToString("f2"));
            this.AddAllEvent();
        }

        /// <summary>
        /// 拖动右侧三角形
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void ucTrackBar1_Value3Changed(object sender, EventArgs e)
        {
            this.RemoveAllEvent();
            OpenCvSharp.Point startIndex = new OpenCvSharp.Point(ucTrackBar1.Value1, ucTrackBar1.Value3);

            //计算对比度
            label6.Text = (256.0 / (startIndex.Y - startIndex.X)).ToString("f2");
            trackBar2.Value = Math.Min(trackBar2.Maximum, (int)(double.Parse(label6.Text) * 100));
            //计算亮度
            label5.Text = ((0 - startIndex.X - startIndex.Y) / 510.0).ToString("f2");
            trackBar1.Value = (int)(double.Parse(label5.Text) * 100);
            this.AddAllEvent();
        }

        /// <summary>
        /// 亮度改变
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void trackBar1_Scroll(object sender, EventArgs e)
        {
            this.RemoveAllEvent();
            this.label5.Text = (trackBar1.Value / 100.0).ToString("f2");
            this.AddAllEvent();
        }

        /// <summary>
        /// 对比度改变
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void trackBar2_Scroll(object sender, EventArgs e)
        {
            this.RemoveAllEvent();
            label6.Text = (trackBar2.Value / 100.0).ToString("f2");
            this.AddAllEvent();
        }

        /// <summary>
        /// gamma改变
        /// gamma值小于1时，会拉伸图像中灰度级较低的区域，同时会压缩灰度级较高的部分
        /// gamma值大于1时，会拉伸图像中灰度级较高的区域，同时会压缩灰度级较低的部分
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void trackBar3_Scroll(object sender, EventArgs e)
        {
            this.RemoveAllEvent();
            numericUpDown2.Value = decimal.Parse((trackBar3.Value / 100.0).ToString("f2"));
            this.AddAllEvent();
        }
    }
}