(转)数字图象处理

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;

namespace ShowImage
{
    /**//// <SUMMARY>
    /// Form1 的摘要说明。
    /// </SUMMARY>
    public partial class main : System.Windows.Forms.Form
    {
        public string CurPath;
        private System.Windows.Forms.Button Open;
        private System.Windows.Forms.PictureBox pictureBox1;
        private System.Windows.Forms.Button btnAntiColor;
        private System.Windows.Forms.Button btnCancel;
        private System.Windows.Forms.Button btnSave;
        private System.Windows.Forms.SaveFileDialog saveFileDialog1;
        private System.Windows.Forms.Button btnSharp;
        private System.Windows.Forms.Button btnNormalShow;
        private System.Windows.Forms.Button btnProfile;
        private System.Windows.Forms.Button btnerzhihua;
        private System.Windows.Forms.Button btnMidfiltrate;
        private System.Windows.Forms.Button btnSplit;
        private System.Windows.Forms.Button btnSoftHandle;
        private System.Windows.Forms.Button button1;
        private System.Windows.Forms.Button button2;
        private System.Windows.Forms.Button button3;
        private System.Windows.Forms.Button btnFuDiao;
        private System.Windows.Forms.Button btnFogHandle;
        private System.Windows.Forms.Label label1;
        private System.Windows.Forms.Label label2;
        /**//// <SUMMARY>
        /// 必需的设计器变量。
        /// </SUMMARY>
        private System.ComponentModel.Container components = null;

        /**//// <SUMMARY>
        /// 清理所有正在使用的资源。
        /// </SUMMARY>
        protected override void Dispose( bool disposing )
        {
            if( disposing )
            {
                if (components != null) 
                {
                    components.Dispose();
                }
            }
            base.Dispose( disposing );
        }
        public main()
        {
            InitializeComponent();
        }
        Windows 窗体设计器生成的代码#region Windows 窗体设计器生成的代码
        /**//// <SUMMARY>
        /// 设计器支持所需的方法 - 不要使用代码编辑器修改
        /// 此方法的内容。
        /// </SUMMARY>
        private void InitializeComponent()
        {
            this.Open = new System.Windows.Forms.Button();
            this.pictureBox1 = new System.Windows.Forms.PictureBox();
            this.btnAntiColor = new System.Windows.Forms.Button();
            this.btnCancel = new System.Windows.Forms.Button();
            this.btnSave = new System.Windows.Forms.Button();
            this.saveFileDialog1 = new System.Windows.Forms.SaveFileDialog();
            this.btnSharp = new System.Windows.Forms.Button();
            this.btnNormalShow = new System.Windows.Forms.Button();
            this.btnProfile = new System.Windows.Forms.Button();
            this.btnerzhihua = new System.Windows.Forms.Button();
            this.btnMidfiltrate = new System.Windows.Forms.Button();
            this.btnSplit = new System.Windows.Forms.Button();
            this.btnSoftHandle = new System.Windows.Forms.Button();
            this.button1 = new System.Windows.Forms.Button();
            this.button2 = new System.Windows.Forms.Button();
            this.button3 = new System.Windows.Forms.Button();
            this.btnFuDiao = new System.Windows.Forms.Button();
            this.btnFogHandle = new System.Windows.Forms.Button();
            this.label1 = new System.Windows.Forms.Label();
            this.label2 = new System.Windows.Forms.Label();
            this.SuspendLayout();
            // 
            // Open
            // 
            this.Open.ForeColor = System.Drawing.Color.Red;
            this.Open.Location = new System.Drawing.Point(32, 496);
            this.Open.Name = "Open";
            this.Open.Size = new System.Drawing.Size(112, 32);
            this.Open.TabIndex = 1;
            this.Open.Text = "打开";
            this.Open.Click += new System.EventHandler(this.Open_Click);
            // 
            // pictureBox1
            // 
            this.pictureBox1.Location = new System.Drawing.Point(16, 8);
            this.pictureBox1.Name = "pictureBox1";
            this.pictureBox1.Size = new System.Drawing.Size(784, 464);
            this.pictureBox1.TabIndex = 0;
            this.pictureBox1.TabStop = false;
            // 
            // btnAntiColor
            // 
            this.btnAntiColor.Location = new System.Drawing.Point(376, 592);
            this.btnAntiColor.Name = "btnAntiColor";
            this.btnAntiColor.Size = new System.Drawing.Size(80, 32);
            this.btnAntiColor.TabIndex = 2;
            this.btnAntiColor.Text = "反色处理";
            this.btnAntiColor.Click += new System.EventHandler(this.btnAntiColor_Click);
            // 
            // btnCancel
            // 
            this.btnCancel.ForeColor = System.Drawing.Color.Red;
            this.btnCancel.Location = new System.Drawing.Point(568, 496);
            this.btnCancel.Name = "btnCancel";
            this.btnCancel.Size = new System.Drawing.Size(128, 32);
            this.btnCancel.TabIndex = 3;
            this.btnCancel.Text = "退出";
            this.btnCancel.Click += new System.EventHandler(this.btnCancel_Click);
            // 
            // btnSave
            // 
            this.btnSave.ForeColor = System.Drawing.Color.Red;
            this.btnSave.Location = new System.Drawing.Point(208, 496);
            this.btnSave.Name = "btnSave";
            this.btnSave.Size = new System.Drawing.Size(112, 32);
            this.btnSave.TabIndex = 4;
            this.btnSave.Text = "另存为";
            this.btnSave.Click += new System.EventHandler(this.btnSave_Click);
            // 
            // btnSharp
            // 
            this.btnSharp.Location = new System.Drawing.Point(192, 592);
            this.btnSharp.Name = "btnSharp";
            this.btnSharp.Size = new System.Drawing.Size(75, 32);
            this.btnSharp.TabIndex = 5;
            this.btnSharp.Text = "锐化处理";
            this.btnSharp.Click += new System.EventHandler(this.btnSharp_Click);
            // 
            // btnNormalShow
            // 
            this.btnNormalShow.ForeColor = System.Drawing.Color.Red;
            this.btnNormalShow.Location = new System.Drawing.Point(384, 496);
            this.btnNormalShow.Name = "btnNormalShow";
            this.btnNormalShow.Size = new System.Drawing.Size(112, 32);
            this.btnNormalShow.TabIndex = 6;
            this.btnNormalShow.Text = "正常显示";
            this.btnNormalShow.Click += new System.EventHandler(this.btnNormalShow_Click);
            // 
            // btnProfile
            // 
            this.btnProfile.Location = new System.Drawing.Point(280, 592);
            this.btnProfile.Name = "btnProfile";
            this.btnProfile.Size = new System.Drawing.Size(80, 32);
            this.btnProfile.TabIndex = 7;
            this.btnProfile.Text = "轮廓提取";
            this.btnProfile.Click += new System.EventHandler(this.btnProfile_Click);
            // 
            // btnerzhihua
            // 
            this.btnerzhihua.Location = new System.Drawing.Point(472, 592);
            this.btnerzhihua.Name = "btnerzhihua";
            this.btnerzhihua.Size = new System.Drawing.Size(104, 32);
            this.btnerzhihua.TabIndex = 8;
            this.btnerzhihua.Text = "等灰度片二值化";
            this.btnerzhihua.Click += new System.EventHandler(this.btnerzhihua_Click);
            // 
            // btnMidfiltrate
            // 
            this.btnMidfiltrate.Location = new System.Drawing.Point(16, 544);
            this.btnMidfiltrate.Name = "btnMidfiltrate";
            this.btnMidfiltrate.Size = new System.Drawing.Size(75, 32);
            this.btnMidfiltrate.TabIndex = 10;
            this.btnMidfiltrate.Text = "中值滤波";
            this.btnMidfiltrate.Click += new System.EventHandler(this.btnMidfiltrate_Click);
            // 
            // btnSplit
            // 
            this.btnSplit.Location = new System.Drawing.Point(104, 544);
            this.btnSplit.Name = "btnSplit";
            this.btnSplit.Size = new System.Drawing.Size(75, 32);
            this.btnSplit.TabIndex = 11;
            this.btnSplit.Text = "图像分割";
            this.btnSplit.Click += new System.EventHandler(this.btnSplit_Click);
            // 
            // btnSoftHandle
            // 
            this.btnSoftHandle.Location = new System.Drawing.Point(192, 544);
            this.btnSoftHandle.Name = "btnSoftHandle";
            this.btnSoftHandle.Size = new System.Drawing.Size(75, 32);
            this.btnSoftHandle.TabIndex = 12;
            this.btnSoftHandle.Text = "柔化处理";
            this.btnSoftHandle.Click += new System.EventHandler(this.btnSoftHandle_Click);
            // 
            // button1
            // 
            this.button1.Location = new System.Drawing.Point(280, 544);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(80, 32);
            this.button1.TabIndex = 13;
            this.button1.Text = "B灰度直方图";
            this.button1.Click += new System.EventHandler(this.button1_Click);
            // 
            // button2
            // 
            this.button2.Location = new System.Drawing.Point(376, 544);
            this.button2.Name = "button2";
            this.button2.Size = new System.Drawing.Size(80, 32);
            this.button2.TabIndex = 14;
            this.button2.Text = "R灰度直方图";
            this.button2.Click += new System.EventHandler(this.button2_Click);
            // 
            // button3
            // 
            this.button3.Location = new System.Drawing.Point(472, 544);
            this.button3.Name = "button3";
            this.button3.Size = new System.Drawing.Size(104, 32);
            this.button3.TabIndex = 15;
            this.button3.Text = "G灰度直方图";
            this.button3.Click += new System.EventHandler(this.button3_Click);
            // 
            // btnFuDiao
            // 
            this.btnFuDiao.Location = new System.Drawing.Point(16, 592);
            this.btnFuDiao.Name = "btnFuDiao";
            this.btnFuDiao.Size = new System.Drawing.Size(75, 32);
            this.btnFuDiao.TabIndex = 17;
            this.btnFuDiao.Text = "浮雕处理";
            this.btnFuDiao.Click += new System.EventHandler(this.btnFuDiao_Click);
            // 
            // btnFogHandle
            // 
            this.btnFogHandle.Location = new System.Drawing.Point(104, 592);
            this.btnFogHandle.Name = "btnFogHandle";
            this.btnFogHandle.Size = new System.Drawing.Size(75, 32);
            this.btnFogHandle.TabIndex = 18;
            this.btnFogHandle.Text = "雾化处理";
            this.btnFogHandle.Click += new System.EventHandler(this.btnFogHandle_Click);
            // 
            // label1
            // 
            this.label1.Location = new System.Drawing.Point(528, 0);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(24, 16);
            this.label1.TabIndex = 19;
            this.label1.Text = "256";
            // 
            // label2
            // 
            this.label2.Location = new System.Drawing.Point(0, 0);
            this.label2.Name = "label2";
            this.label2.Size = new System.Drawing.Size(8, 16);
            this.label2.TabIndex = 20;
            this.label2.Text = "0";
            // 
            // main
            // 
            this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
            this.ClientSize = new System.Drawing.Size(816, 646);
            this.Controls.Add(this.label2);
            this.Controls.Add(this.label1);
            this.Controls.Add(this.btnFogHandle);
            this.Controls.Add(this.btnFuDiao);
            this.Controls.Add(this.button3);
            this.Controls.Add(this.button2);
            this.Controls.Add(this.button1);
            this.Controls.Add(this.btnSoftHandle);
            this.Controls.Add(this.btnSplit);
            this.Controls.Add(this.btnMidfiltrate);
            this.Controls.Add(this.btnerzhihua);
            this.Controls.Add(this.btnProfile);
            this.Controls.Add(this.btnNormalShow);
            this.Controls.Add(this.btnSharp);
            this.Controls.Add(this.btnSave);
            this.Controls.Add(this.btnCancel);
            this.Controls.Add(this.btnAntiColor);
            this.Controls.Add(this.Open);
            this.Controls.Add(this.pictureBox1);
            this.Name = "main";
            this.Text = "显示图像";
            this.Load += new System.EventHandler(this.main_Load);
            this.ResumeLayout(false);

        }
        #endregion

        public void turnEnable()
        {
            this.btnAntiColor.Enabled = true;
            this.btnCancel.Enabled = true;
            this.btnerzhihua.Enabled = true;
            this.btnFogHandle.Enabled = true;
            this.btnFuDiao.Enabled = true;
            this.btnMidfiltrate.Enabled = true;
            this.btnNormalShow.Enabled = true;
            this.btnProfile.Enabled = true;
            this.btnSave.Enabled = true;
            this.btnSharp.Enabled = true;
            this.btnSoftHandle.Enabled = true;
            this.btnSplit.Enabled = true;
            this.button1.Enabled = true;
            this.button2.Enabled = true;
            this.button3.Enabled = true;
            this.Open.Enabled = true;
        }
        public void turnUnenable()
        {
            this.btnAntiColor.Enabled = false;
            this.btnCancel.Enabled = false;
            this.btnerzhihua.Enabled = false;
            this.btnFogHandle.Enabled = false;
            this.btnFuDiao.Enabled = false;
            this.btnMidfiltrate.Enabled = false;
            this.btnNormalShow.Enabled = false;
            this.btnProfile.Enabled = false;
            this.btnSave.Enabled = false;
            this.btnSharp.Enabled = false;
            this.btnSoftHandle.Enabled = false;
            this.btnSplit.Enabled = false;
            this.button1.Enabled = false;
            this.button2.Enabled = false;
            this.button3.Enabled = false;
            this.Open.Enabled = false;
        }

        private void Open_Click(object sender, System.EventArgs e)//打开图片
        {
            this.label1.Visible = false;
            this.label2.Visible = false;
            OpenFileDialog myDlg = new OpenFileDialog();
            myDlg.Filter = "所有图像格式(*.bmp,*jpg,*.jpeg,*.gif,*,png)|*.bmp;*jpg;*.jepg;*.gif;*.png"; //设置文件过滤器
            if (myDlg.ShowDialog() == DialogResult.OK)
            {
                CurPath = myDlg.FileName;
                this.pictureBox1.Image = Bitmap.FromFile(CurPath);
            }
        }


        private void btnAntiColor_Click(object sender, System.EventArgs e) //反色处理
        {
            if (this.pictureBox1.Image != null)
            {
                this.turnUnenable();
                this.label1.Visible = false;
                this.label2.Visible = false;
                //以反色方式显示图像            
                int Height, Width;
                if (this.pictureBox1.Image.Width < this.pictureBox1.Width ||
                    this.pictureBox1.Image.Height < this.pictureBox1.Height)
                {
                    Width = this.pictureBox1.Image.Width - 1;     //获取当前图像象素高度
                    Height = this.pictureBox1.Image.Height - 1;     //获取当前图像象素宽度
                }
                else
                {
                    Width = this.pictureBox1.Width - 1;
                    Height = this.pictureBox1.Height - 1;
                }
                Bitmap bitmap = new Bitmap(this.pictureBox1.Image);   //以当前的图像大小令创一个空图像
                Bitmap MyBitmap = (Bitmap)this.pictureBox1.Image;
                Color pixel;  //申请一个颜色（用ARGB表示）
                for (int x = 1; x < Width; x++)
                {
                    for (int y = 1; y < Height; y++)
                    {
                        int r, g, b;
                        pixel = MyBitmap.GetPixel(x, y);
                        r = 255 - pixel.R;  //对当前r颜色取反
                        g = 255 - pixel.G;  //对当前g颜色取反
                        b = 255 - pixel.B;  //对当前b颜色取反
                        bitmap.SetPixel(x, y, Color.FromArgb(r, g, b));        //用取反后的argb值图像创建一个图像    
                    }
                    this.pictureBox1.Refresh();
                    this.pictureBox1.Image = bitmap;
                }
                this.turnEnable();
            }
        }


        private void btnCancel_Click(object sender, System.EventArgs e) //退出
        {
            Application.Exit();
        }


        private void btnSave_Click(object sender, System.EventArgs e) //保存图片
        {
            if (this.pictureBox1.Image != null)
            {
                this.label1.Visible = false;
                this.label2.Visible = false;
                Bitmap newmap = new Bitmap(this.pictureBox1.Image);
                this.saveFileDialog1.Filter = "All Files(*.*)|*.*";
                this.saveFileDialog1.ShowDialog();
                if (this.saveFileDialog1.ShowDialog() == DialogResult.OK)
                    this.pictureBox1.Image.Save(saveFileDialog1.FileName);

            }
        }


        /**//// <summary>
        /// 锐化算法：运用拉普拉斯算子,计算该图像f(i,j)这个点的像素值,再减去f(i+1,j),f(i-1,j),f(i,j+1)和f(i,j-1)的象素值,
        /// 最后加上4倍f(i,j),即为处理后的图像在这一点的像素值。
        /// </summary>
        private void btnSharp_Click(object sender, System.EventArgs e) //锐化处理
        {
            if (this.pictureBox1.Image != null)
            {
                this.turnUnenable();
                this.label1.Visible = false;
                this.label2.Visible = false;
                Color c1 = new Color();
                Color c2 = new Color();
                Color c3 = new Color();
                Color c4 = new Color();
                Color c5 = new Color();

                int rr, r1, r2, r3, r4, r5, fxr;
                int WIDTH, HEIGH;

                if (this.pictureBox1.Image.Width < this.pictureBox1.Width ||
                    this.pictureBox1.Image.Height < this.pictureBox1.Height)
                {
                    WIDTH = this.pictureBox1.Image.Width - 2;
                    HEIGH = this.pictureBox1.Image.Height - 2;
                }
                else
                {
                    WIDTH = this.pictureBox1.Width - 1;
                    HEIGH = this.pictureBox1.Height - 1;
                }

                Bitmap bitmap1 = new Bitmap(this.pictureBox1.Image);
                Bitmap bitmap2 = new Bitmap(this.pictureBox1.Image);

                for (int ii = 1; ii < WIDTH; ii++)
                {
                    for (int jj = 1; jj < HEIGH; jj++)
                    {
                        c1 = bitmap1.GetPixel(ii, jj - 1);
                        c2 = bitmap1.GetPixel(ii - 1, jj);
                        c3 = bitmap1.GetPixel(ii, jj);
                        c4 = bitmap1.GetPixel(ii + 1, jj);
                        c5 = bitmap1.GetPixel(ii, jj + 1);

                        r1 = c1.R;
                        r2 = c2.R;
                        r3 = c3.R;
                        r4 = c4.R;
                        r5 = c5.R;


                        fxr = 5 * r3 - (r4 + r2 + r5 + r1);
                        rr = Math.Abs(fxr);
                        if (rr < 0) rr = 0;
                        if (rr > 255) rr = 255;

                        Color cc = Color.FromArgb(rr, rr, rr);
                        bitmap2.SetPixel(ii, jj, cc);

                    }
                    this.pictureBox1.Refresh();
                    this.pictureBox1.Image = bitmap2;
                }
                this.turnEnable();
            }
        }


        private void btnNormalShow_Click(object sender, System.EventArgs e) //正常显示
        {
            this.label1.Visible = false;
            this.label2.Visible = false;
            if (this.pictureBox1.Image != null)
                this.pictureBox1.Image = Bitmap.FromFile(CurPath);
        }


        /**//// <summary>
        /// 8领域微分拉普拉斯算子算法如下：假设原图像为f(i,j),处理后的图像为g(i,j),则
        /// g(i,j) = abs( 8 * f(i,j) - f(i,j-1) - f(i-1,j) - f(i+1,j) - f(i,j+1) - f(i-1,j-1) 
        ///                   - f(i-1,j+1) - f(i+1,j-1) - f(i+1,j+1) )
        /// </summary>
        private void btnProfile_Click(object sender, System.EventArgs e) //提取轮廓，8领域微分拉普拉斯算子
        {
            if (this.pictureBox1.Image != null)
            {
                this.turnUnenable();
                this.label1.Visible = false;
                this.label2.Visible = false;
                Color c1 = new Color();
                Color c2 = new Color();
                Color c3 = new Color();
                Color c4 = new Color();
                Color c5 = new Color();
                Color c6 = new Color();
                Color c7 = new Color();
                Color c8 = new Color();
                Color c9 = new Color();

                int rr, r1, r2, r3, r4, r5, r6, r7, r8, r9, fxr;
                int WIDTH, HEIGH;

                if (this.pictureBox1.Image.Width < this.pictureBox1.Width ||
                    this.pictureBox1.Image.Height < this.pictureBox1.Height)
                {
                    WIDTH = this.pictureBox1.Image.Width - 2;
                    HEIGH = this.pictureBox1.Image.Height - 2;
                }
                else
                {
                    WIDTH = this.pictureBox1.Width - 1;
                    HEIGH = this.pictureBox1.Height - 1;
                }

                Bitmap bitmap1 = new Bitmap(this.pictureBox1.Image);
                Bitmap bitmap2 = new Bitmap(this.pictureBox1.Image);

                for (int ii = 1; ii < WIDTH; ii++)
                {
                    for (int jj = 1; jj < HEIGH; jj++)
                    {
                        c1 = bitmap1.GetPixel(ii, jj - 1);
                        c2 = bitmap1.GetPixel(ii - 1, jj);
                        c3 = bitmap1.GetPixel(ii, jj);
                        c4 = bitmap1.GetPixel(ii + 1, jj);
                        c5 = bitmap1.GetPixel(ii, jj + 1);
                        c6 = bitmap1.GetPixel(ii - 1, jj - 1);
                        c7 = bitmap1.GetPixel(ii - 1, jj + 1);
                        c8 = bitmap1.GetPixel(ii + 1, jj - 1);
                        c9 = bitmap1.GetPixel(ii + 1, jj + 1);

                        r1 = c1.R;
                        r2 = c2.R;
                        r3 = c3.R;
                        r4 = c4.R;
                        r5 = c5.R;
                        r6 = c6.R;
                        r7 = c7.R;
                        r8 = c8.R;
                        r9 = c9.R;

                        fxr = 8 * r3 - r1 - r2 - r4 - r5 - r6 - r7 - r8 - r9;
                        rr = Math.Abs(fxr);
                        if (rr < 0) rr = 0;
                        if (rr > 255) rr = 255;

                        Color cc = Color.FromArgb(rr, rr, rr);
                        bitmap2.SetPixel(ii, jj, cc);

                    }
                    this.pictureBox1.Refresh();
                    this.pictureBox1.Image = bitmap2;
                }
                this.turnEnable();
            }
        }


        /**//// <summary>
        /// 等灰度片二值化算法:将输入图像在某两个等宽的灰度级范围内的所有象素全部置为0（黑），其余
        /// 灰度级的所有象素全部置为255（白），则生成黑白二值图像。本例中的灰度级范围是50和100
        /// </summary>
        private void btnerzhihua_Click(object sender, System.EventArgs e)//等灰度片二值化
        {
            if (this.pictureBox1.Image != null)
            {
                this.turnUnenable();
                this.label1.Visible = false;
                this.label2.Visible = false;
                Color c = new Color();
                int WIDTH, HEIGH, rr, lev, wid, x, y, m;
                int[] lut = new int[256];
                int[, ,] pic = new int[1000, 1000, 3];
                lev = 50;
                wid = 500;
                y = 0;

                if (this.pictureBox1.Image.Width < this.pictureBox1.Width ||
                    this.pictureBox1.Image.Height < this.pictureBox1.Height)
                {
                    WIDTH = this.pictureBox1.Image.Width - 2;
                    HEIGH = this.pictureBox1.Image.Height - 2;
                }
                else
                {
                    WIDTH = this.pictureBox1.Width - 1;
                    HEIGH = this.pictureBox1.Height - 1;
                }

                Bitmap bitmap1 = new Bitmap(this.pictureBox1.Image);
                Bitmap bitmap2 = new Bitmap(this.pictureBox1.Image);

                while (y <= 256)        //循环赋值，使lut在0～50和150～200之间为255，在50～150和200～256之间为0
                {
                    for (x = 0; x <= lev - 1; x++)
                    {
                        lut[y] = 255;
                        y = y + 1;
                        if (y > 255) goto loop;
                    }
                    for (x = 0; x < wid - 1; x++)
                    {
                        lut[y] = 0;
                        y = y + 1;
                        if (y > 255) goto loop;
                    }
                }



                 /**//*分别将一个点的RGB值赋给3个二维数组，为以后判别象素在什么范围内和
                  生成图像做准备*/
            loop:
                for (int i = 0; i < WIDTH; i++)
                {
                    for (int j = 0; j < HEIGH; j++)
                    {
                        c = bitmap1.GetPixel(i, j);
                        pic[i, j, 0] = c.R;
                        pic[i, j, 1] = c.G;
                        pic[i, j, 2] = c.B;
                    }
                }
                for (int i = 0; i < WIDTH; i++)  //判断象素范围并生成新的图像
                {
                    for (int j = 0; j < HEIGH; j++)
                    {
                        m = pic[i, j, 2];  //这里取B值进行判断，依据其大小决定其范围并将数组中的值赋给象素点
                        rr = lut[m];

                        Color c1 = Color.FromArgb(rr, rr, rr);
                        bitmap2.SetPixel(i, j, c1);
                    }
                    this.pictureBox1.Refresh();
                    this.pictureBox1.Image = bitmap2;
                }
                this.turnEnable();
            }
        }



        /**//// <summary>
        /// 中值滤波算法：设当前图像为f(i,j),处理后的图像为g(i,j),以当前象素f(i,j)为中心切出一个N*N象素组成的图像块，
        /// 则g(i,j)的像素值取这个图像块灰度值排序序列中的中间值
        /// </summary>
        private void btnMidfiltrate_Click(object sender, System.EventArgs e)  //中值滤波
        {
            if (this.pictureBox1.Image != null)
            {
                this.turnUnenable();
                this.label1.Visible = false;
                this.label2.Visible = false;
                Color c = new Color();
                Color cc = new Color();
                int WIDTH, HEIGH, rr, r1, g1, b1, k1, k2, i1, j1, dm, m;
                int[] dt = new int[20];
                if (this.pictureBox1.Image.Width < this.pictureBox1.Width ||
                    this.pictureBox1.Image.Height < this.pictureBox1.Height)
                {
                    WIDTH = this.pictureBox1.Image.Width - 1;
                    HEIGH = this.pictureBox1.Image.Height - 1;
                }
                else
                {
                    WIDTH = this.pictureBox1.Width - 1;
                    HEIGH = this.pictureBox1.Height - 1;
                }

                Bitmap bitmap1 = new Bitmap(this.pictureBox1.Image);
                Bitmap bitmap2 = new Bitmap(this.pictureBox1.Image);

                for (int i = 1; i < WIDTH; i++)
                {
                    for (int j = 1; j < HEIGH; j++)
                    {
                        rr = 0; m = 0;
                        for (k1 = -1; k1 <= 1; k1++)  //循环找出当前点的周围象素点，这里取此点周围的8个点
                        {
                            for (k2 = -1; k2 <= 1; k2++)
                            {
                                c = bitmap1.GetPixel(i + k1, j + k2);
                                r1 = c.R;
                                g1 = c.G;
                                b1 = c.B;
                                dt[m] = r1;        //将8个点中的每个点的象素值存入数组

                                m = m + 1;
                            }
                        }
                        for (i1 = m - 1; i1 >= 1; i1 = i1 - 1)   //对数组dt进行冒泡排序
                        {
                            for (j1 = 1; j1 <= i1; j1 = j1 + 1)
                            {
                                if (dt[j1 - 1] > dt[j1])
                                {
                                    dm = dt[j1];
                                    dt[j1] = dt[j1 - 1];
                                    dt[j1 - 1] = dm;
                                }
                            }
                        }

                        rr = dt[(int)(m / 2)];   //取中间值，赋给输出点
                        Color c1 = Color.FromArgb(rr, rr, rr);

                        bitmap2.SetPixel(i, j, c1);
                    }

                    this.pictureBox1.Refresh();
                    this.pictureBox1.Image = bitmap2;
                }
                this.turnEnable();
            }
        }


        /**//// <summary>
        /// 柔化处理算法：设当前图像为f(i,j),处理后的图像为g(i-1,j-1),则g(i-1,j-1)的像素值是f(i,j)周围
        /// 8个点的象素值分别乘以对应的高斯模板，然后再相加。
        /// </summary>
        private void btnSoftHandle_Click(object sender, System.EventArgs e) //柔化处理
        {
            if (this.pictureBox1.Image != null)
            {
                this.turnUnenable();
                this.label1.Visible = false;
                this.label2.Visible = false;
                int HEIGH, WIDTH;
                if (this.pictureBox1.Image.Width < this.pictureBox1.Width ||
                    this.pictureBox1.Image.Height < this.pictureBox1.Height)
                {
                    WIDTH = this.pictureBox1.Image.Width;
                    HEIGH = this.pictureBox1.Image.Height;
                }
                else
                {
                    WIDTH = this.pictureBox1.Width;
                    HEIGH = this.pictureBox1.Height;
                }
                Bitmap bitmap = new Bitmap(this.pictureBox1.Image);
                Bitmap MyBitmap = (Bitmap)this.pictureBox1.Image;
                Color pixel;
                //高斯模板
                int[] Gauss ={ 1, 2, 1, 2, 4, 2, 1, 2, 1 };
                for (int x = 1; x < WIDTH - 1; x++)
                {
                    for (int y = 1; y < HEIGH - 1; y++)
                    {
                        int r = 0, g = 0, b = 0;
                        int Index = 0;
                        for (int col = -1; col <= 1; col++)
                            for (int row = -1; row <= 1; row++)
                            {
                                pixel = MyBitmap.GetPixel(x + row, y + col);
                                r += pixel.R * Gauss[Index];
                                g += pixel.G * Gauss[Index];
                                b += pixel.B * Gauss[Index];
                                Index++;
                            }
                        r /= 16;
                        g /= 16;
                        b /= 16;
                        //处理颜色值溢出
                        r = r > 255 ? 255 : r;
                        r = r < 0 ? 0 : r;
                        g = g > 255 ? 255 : g;
                        g = g < 0 ? 0 : g;
                        b = b > 255 ? 255 : b;
                        b = b < 0 ? 0 : b;
                        bitmap.SetPixel(x - 1, y - 1, Color.FromArgb(r, g, b));
                    }
                    this.pictureBox1.Refresh();
                    this.pictureBox1.Image = bitmap;
                }
                this.turnEnable();
            }
        }



        /**//// <summary>
        /// 图像分割算法：先求出合适的阈值，再根据这个阈值对图像进行二值化
        /// </summary>
        private void btnSplit_Click(object sender, System.EventArgs e) //图像分割
        {
            if (this.pictureBox1.Image != null)
            {
                this.turnUnenable();
                this.label1.Visible = false;
                this.label2.Visible = false;
                int HEIGH, WIDTH, Blue, temp0 = 0, temp1 = 0, temp2 = 0, temp3 = 0, T2, T1 = 127;
                Color c;
                int[] gray = new int[256];
                if (this.pictureBox1.Image.Width < this.pictureBox1.Width ||
                    this.pictureBox1.Image.Height < this.pictureBox1.Height)
                {
                    WIDTH = this.pictureBox1.Image.Width - 1;
                    HEIGH = this.pictureBox1.Image.Height - 1;
                }
                else
                {
                    WIDTH = this.pictureBox1.Width - 1;
                    HEIGH = this.pictureBox1.Height - 1;
                }
                Bitmap bitmap1 = new Bitmap(this.pictureBox1.Image);
                Bitmap bitmap2 = new Bitmap(this.pictureBox1.Image);

                for (int i = 0; i < WIDTH; i++)   //计算此图像的灰度值，这里以B灰度为例
                    for (int j = 0; j < HEIGH; j++)
                    {
                        c = bitmap1.GetPixel(i, j);
                        Blue = c.B;
                        gray[Blue]++;
                    }

                while (true)  //循环算出合适的阈值
                {
                    for (int i = 0; i < T1 + 1; i++)
                    {
                        temp0 += gray[i] * i;
                        temp1 += gray[i];
                    }
                    for (int i = T1 + 1; i < 256; i++)
                    {
                        temp2 += gray[i] * i;
                        temp3 += gray[i];
                    }
                    T2 = (temp0 / temp1 + temp2 / temp3) / 2;
                    if (T1 == T2)
                        break;
                    else
                        T1 = T2;
                }

                for (int i = 0; i < WIDTH; i++)  //生成处理后的图像
                {
                    for (int j = 0; j < HEIGH; j++)
                    {
                        int B = bitmap1.GetPixel(i, j).B;
                        if (B < T1)
                            B = 0;
                        else
                            B = 255;
                        bitmap2.SetPixel(i, j, Color.FromArgb(B, B, B));
                    }

                    this.pictureBox1.Refresh();
                    this.pictureBox1.Image = bitmap2;
                }
                this.turnEnable();
            }

        }



        /**//// <summary>
        /// 直方图算法：计算整个图像的灰度值（例如 G灰度值从0～255分别在当前图像中所占的比例），
        /// 然后用二维坐标表示出来。
        /// </summary>
        private void button1_Click(object sender, System.EventArgs e) //B灰度直方图
        {
            if (this.pictureBox1.Image != null)
            {
                this.turnUnenable();
                this.label1.Visible = true;
                this.label2.Visible = true;

                //                System.Random random = new Random();
                //                int a = random.Next(255);

                int HEIGH, WIDTH, Blue;
                Color c;
                float[] gray = new float[256];
                if (this.pictureBox1.Image.Width < this.pictureBox1.Width ||
                    this.pictureBox1.Image.Height < this.pictureBox1.Height)
                {
                    WIDTH = this.pictureBox1.Image.Width - 1;
                    HEIGH = this.pictureBox1.Image.Height - 1;
                }
                else
                {
                    WIDTH = this.pictureBox1.Width - 1;
                    HEIGH = this.pictureBox1.Height - 1;
                }
                Bitmap bitmap1 = new Bitmap(this.pictureBox1.Image);
                Bitmap bitmap2 = new Bitmap(512, 512);
                int sum = WIDTH * HEIGH;

                for (int i = 0; i < 256; i++)
                    gray[i] = 0.0f;

                for (int i = 0; i < WIDTH; i++)    //计算灰度值，此处以B灰度为例
                    for (int j = 0; j < HEIGH; j++)
                    {
                        c = bitmap1.GetPixel(i, j);
                        Blue = c.B;
                        gray[Blue]++;
                    }

                for (int i = 0; i < 512; i = i + 2)
                {
                    for (int j = 0; j < 512; j++)
                    {
                        if (i == 0)
                            bitmap2.SetPixel(i, j, Color.FromArgb(100, 100, 100));
                        if (j <= ((gray[i / 2] / sum) * 10000)) //求出象素比例，再扩大10000倍
                            bitmap2.SetPixel(i, j, Color.FromArgb(0, 0, 255));
                    }

                    this.pictureBox1.Refresh();
                    this.pictureBox1.Image = bitmap2;
                }
                this.turnEnable();
            }

        }



        /**//// <summary>
        /// 直方图算法：计算整个图像的灰度值（例如 G灰度值从0～255分别在当前图像中所占的比例），
        /// 然后用二维坐标表示出来。
        /// </summary>
        private void button2_Click(object sender, System.EventArgs e) //R灰度直方图
        {
            if (this.pictureBox1.Image != null)
            {
                this.turnUnenable();
                this.label1.Visible = true;
                this.label2.Visible = true;
                int HEIGH, WIDTH, Blue;
                Color c;
                float[] gray = new float[256];
                if (this.pictureBox1.Image.Width < this.pictureBox1.Width ||
                    this.pictureBox1.Image.Height < this.pictureBox1.Height)
                {
                    WIDTH = this.pictureBox1.Image.Width - 1;
                    HEIGH = this.pictureBox1.Image.Height - 1;
                }
                else
                {
                    WIDTH = this.pictureBox1.Width - 1;
                    HEIGH = this.pictureBox1.Height - 1;
                }

                int sum = WIDTH * HEIGH;
                Bitmap bitmap1 = new Bitmap(this.pictureBox1.Image);
                Bitmap bitmap2 = new Bitmap(512, 512);

                for (int i = 0; i < 256; i++)
                    gray[i] = 0.0f;


                for (int i = 0; i < WIDTH; i++)
                    for (int j = 0; j < HEIGH; j++)
                    {
                        c = bitmap1.GetPixel(i, j);
                        Blue = c.R;
                        gray[Blue]++;
                    }

                for (int i = 0; i < 512; i = i + 2)
                {
                    for (int j = 0; j < 512; j++)
                    {
                        if (i == 0)
                            bitmap2.SetPixel(i, j, Color.FromArgb(100, 100, 100));
                        if (j <= ((gray[i / 2] / sum) * 10000)) //求出象素比例，再扩大10000倍
                            bitmap2.SetPixel(i, j, Color.FromArgb(255, 0, 0));
                    }

                    this.pictureBox1.Refresh();
                    this.pictureBox1.Image = bitmap2;
                }
                this.turnEnable();
            }
        }



        /**//// <summary>
        /// 直方图算法：计算整个图像的灰度值（例如 G灰度值从0～255分别在当前图像中所占的比例），
        /// 然后用二维坐标表示出来。
        /// </summary>
        private void button3_Click(object sender, System.EventArgs e) //G灰度直方图
        {
            if (this.pictureBox1.Image != null)
            {
                this.turnUnenable();
                this.label1.Visible = true;
                this.label2.Visible = true;
                int HEIGH, WIDTH, Blue;
                Color c;
                float[] gray = new float[256];
                if (this.pictureBox1.Image.Width < this.pictureBox1.Width ||
                    this.pictureBox1.Image.Height < this.pictureBox1.Height)
                {
                    WIDTH = this.pictureBox1.Image.Width - 1;
                    HEIGH = this.pictureBox1.Image.Height - 1;
                }
                else
                {
                    WIDTH = this.pictureBox1.Width - 1;
                    HEIGH = this.pictureBox1.Height - 1;
                }
                Bitmap bitmap1 = new Bitmap(this.pictureBox1.Image);
                Bitmap bitmap2 = new Bitmap(512, 512);
                int sum = WIDTH * HEIGH;

                for (int i = 0; i < WIDTH; i++)
                    for (int j = 0; j < HEIGH; j++)
                    {
                        c = bitmap1.GetPixel(i, j);
                        Blue = c.G;
                        gray[Blue]++;
                    }

                for (int i = 0; i < 512; i = i + 2)
                {
                    for (int j = 0; j < 512; j++)
                    {
                        if (i == 0)
                            bitmap2.SetPixel(i, j, Color.FromArgb(100, 100, 100));
                        if (j <= ((gray[i / 2] / sum) * 10000))  //求出象素比例，再扩大10000倍 
                            bitmap2.SetPixel(i, j, Color.FromArgb(0, 255, 0));
                    }

                    this.pictureBox1.Refresh();
                    this.pictureBox1.Image = bitmap2;
                }
                this.turnEnable();
            }
        }



        /**//// <summary>
        ///浮雕处理算法： 设当前图像为f(i,j),处理后的图像为g(i,j),则g(i,j)的象素值为f(i,j)的像素
        ///值减去f(i+1,j+1)的像素值再加上128,最后取和的绝对值
        /// </summary>
        private void btnFuDiao_Click(object sender, System.EventArgs e)  //浮雕处理
        {
            if (this.pictureBox1.Image != null)
            {
                this.turnUnenable();
                this.label1.Visible = false;
                this.label2.Visible = false;
                int HEIGH, WIDTH;
                if (this.pictureBox1.Image.Width < this.pictureBox1.Width ||
                    this.pictureBox1.Image.Height < this.pictureBox1.Height)
                {
                    WIDTH = this.pictureBox1.Image.Width - 1;
                    HEIGH = this.pictureBox1.Image.Height - 1;
                }
                else
                {
                    WIDTH = this.pictureBox1.Width - 1;
                    HEIGH = this.pictureBox1.Height - 1;
                }
                Bitmap bitmap2 = new Bitmap(this.pictureBox1.Image);
                Bitmap bitmap1 = new Bitmap(this.pictureBox1.Image);
                Color pixel1, pixel2;
                for (int x = 0; x < WIDTH; x++)
                {
                    for (int y = 0; y < HEIGH; y++)
                    {
                        int r = 0, g = 0, b = 0;
                        pixel1 = bitmap1.GetPixel(x, y);
                        pixel2 = bitmap1.GetPixel(x + 1, y + 1);
                        r = Math.Abs(pixel1.R - pixel2.R + 128);
                        g = Math.Abs(pixel1.G - pixel2.G + 128);
                        b = Math.Abs(pixel1.B - pixel2.B + 128);
                        if (r > 255)
                            r = 255;
                        if (r < 0)
                            r = 0;
                        if (g > 255)
                            g = 255;
                        if (g < 0)
                            g = 0;
                        if (b > 255)
                            b = 255;
                        if (b < 0)
                            b = 0;
                        bitmap2.SetPixel(x, y, Color.FromArgb(r, g, b));
                    }

                    this.pictureBox1.Refresh();
                    this.pictureBox1.Image = bitmap2;
                }
                this.turnEnable();
            }
        }


        /**//// <summary>
        /// 雾化处理算法： 设当前图像为f(i,j),处理后的图像为g(i,j),则g(i,j)的象素值其实是f(i,j)点
        /// 按照某种规律对应的另外一个点的象素值。在此例中的另外一点，是f(i+random % 19,j+random % 19)
        /// 其中random是随机数。
        /// </summary>
        private void btnFogHandle_Click(object sender, System.EventArgs e) //雾化处理
        {
            if (this.pictureBox1.Image != null)
            {
                this.turnUnenable();
                this.label1.Visible = false;
                this.label2.Visible = false;
                int Height, Width;
                if (this.pictureBox1.Image.Width < this.pictureBox1.Width ||
                    this.pictureBox1.Image.Height < this.pictureBox1.Height)
                {
                    Width = this.pictureBox1.Image.Width - 1;
                    Height = this.pictureBox1.Image.Height - 1;
                }
                else
                {
                    Width = this.pictureBox1.Width - 1;
                    Height = this.pictureBox1.Height - 1;
                }
                Bitmap bitmap = new Bitmap(this.pictureBox1.Image);
                Bitmap MyBitmap = (Bitmap)this.pictureBox1.Image;
                Color pixel;
                for (int x = 1; x < Width; x++)
                {
                    for (int y = 1; y < Height; y++)
                    {
                        System.Random MyRandom = new Random();
                        int k = MyRandom.Next(123456);
                        //像素块大小
                        int dx = x + k % 19;
                        int dy = y + k % 19;
                        if (dx >= Width)
                            dx = Width;
                        if (dy >= Height)
                            dy = Height;
                        pixel = MyBitmap.GetPixel(dx, dy);
                        bitmap.SetPixel(x, y, pixel);
                    }

                    this.pictureBox1.Refresh();
                    this.pictureBox1.Image = bitmap;
                }
                this.turnEnable();
            }
        }

        private void main_Load(object sender, System.EventArgs e)
        {
            this.label1.Visible = false;
            this.label2.Visible = false;
        }
    }
}