数字图像处理（图像灰度化以及图像连通区域标记）

【实例截图】

【核心代码】

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

namespace image
{
	/// <summary>
	/// Summary description for Form1.
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
		private Bitmap b;
		private image.ConnectedComponents cp;
		private System.Windows.Forms.MainMenu mainMenu1;
		private System.Windows.Forms.MenuItem menuItem1;
		private System.Windows.Forms.MenuItem menuItem2;
		private System.Windows.Forms.MenuItem menuItem3;
		private System.Windows.Forms.MenuItem menuItem4;
		private System.Windows.Forms.MenuItem menuItem6;
		private System.Windows.Forms.PictureBox Pic;
		private System.Windows.Forms.MenuItem menuItem7;
		private System.Windows.Forms.MenuItem menuItem8;
		private System.Windows.Forms.MenuItem menuItem9;
		private System.Windows.Forms.MenuItem menuItem10;
        private System.Windows.Forms.MenuItem Process;
        private IContainer components;

		public Form1()
		{
			//
			// Required for Windows Form Designer support
			//
			InitializeComponent();

			//
			// TODO: Add any constructor code after InitializeComponent call
			//
		}

		/// <summary>
		/// Clean up any resources being used.
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if (components != null) 
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows Form Designer generated code
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
            this.components = new System.ComponentModel.Container();
            this.mainMenu1 = new System.Windows.Forms.MainMenu(this.components);
            this.menuItem1 = new System.Windows.Forms.MenuItem();
            this.menuItem2 = new System.Windows.Forms.MenuItem();
            this.menuItem3 = new System.Windows.Forms.MenuItem();
            this.menuItem4 = new System.Windows.Forms.MenuItem();
            this.Process = new System.Windows.Forms.MenuItem();
            this.menuItem7 = new System.Windows.Forms.MenuItem();
            this.menuItem8 = new System.Windows.Forms.MenuItem();
            this.menuItem9 = new System.Windows.Forms.MenuItem();
            this.menuItem10 = new System.Windows.Forms.MenuItem();
            this.menuItem6 = new System.Windows.Forms.MenuItem();
            this.Pic = new System.Windows.Forms.PictureBox();
            ((System.ComponentModel.ISupportInitialize)(this.Pic)).BeginInit();
            this.SuspendLayout();
            // 
            // mainMenu1
            // 
            this.mainMenu1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
            this.menuItem1,
            this.Process});
            // 
            // menuItem1
            // 
            this.menuItem1.Index = 0;
            this.menuItem1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
            this.menuItem2,
            this.menuItem3,
            this.menuItem4});
            this.menuItem1.Text = "File";
            // 
            // menuItem2
            // 
            this.menuItem2.Index = 0;
            this.menuItem2.Text = "Open";
            this.menuItem2.Click  = new System.EventHandler(this.menuItem2_Click);
            // 
            // menuItem3
            // 
            this.menuItem3.Index = 1;
            this.menuItem3.Text = "-";
            // 
            // menuItem4
            // 
            this.menuItem4.Index = 2;
            this.menuItem4.Text = "Exit";
            // 
            // Process
            // 
            this.Process.Enabled = false;
            this.Process.Index = 1;
            this.Process.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
            this.menuItem7,
            this.menuItem8,
            this.menuItem9,
            this.menuItem10,
            this.menuItem6});
            this.Process.Text = "Processing";
            // 
            // menuItem7
            // 
            this.menuItem7.Index = 0;
            this.menuItem7.Text = "GrayScale";
            this.menuItem7.Click  = new System.EventHandler(this.menuItem7_Click);
            // 
            // menuItem8
            // 
            this.menuItem8.Index = 1;
            this.menuItem8.Text = "-";
            // 
            // menuItem9
            // 
            this.menuItem9.Index = 2;
            this.menuItem9.Text = "Binary";
            this.menuItem9.Click  = new System.EventHandler(this.menuItem9_Click);
            // 
            // menuItem10
            // 
            this.menuItem10.Index = 3;
            this.menuItem10.Text = "-";
            // 
            // menuItem6
            // 
            this.menuItem6.Index = 4;
            this.menuItem6.Text = "Connected Components";
            this.menuItem6.Click  = new System.EventHandler(this.menuItem6_Click);
            // 
            // Pic
            // 
            this.Pic.Location = new System.Drawing.Point(10, 9);
            this.Pic.Name = "Pic";
            this.Pic.Size = new System.Drawing.Size(172, 155);
            this.Pic.SizeMode = System.Windows.Forms.PictureBoxSizeMode.AutoSize;
            this.Pic.TabIndex = 0;
            this.Pic.TabStop = false;
            // 
            // Form1
            // 
            this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
            this.AutoSize = true;
            this.ClientSize = new System.Drawing.Size(292, 273);
            this.Controls.Add(this.Pic);
            this.Menu = this.mainMenu1;
            this.Name = "Form1";
            this.Text = "Connected Components";
            this.Load  = new System.EventHandler(this.Form1_Load);
            ((System.ComponentModel.ISupportInitialize)(this.Pic)).EndInit();
            this.ResumeLayout(false);
            this.PerformLayout();

		}
		#endregion

		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new Form1());
		}

		private void menuItem2_Click(object sender, System.EventArgs e)
		{			
			OpenFileDialog dlg=new OpenFileDialog();
			dlg.Title="Sample";						
			string file="";
			dlg.Filter="Bitmaps/Gif/jpeg (*.bmp;*.gif)|*.gif;*.bmp;*.jpg";
			if (dlg.ShowDialog()== DialogResult.OK)
			{
				file=dlg.FileName;
			}			
			else
			{
				MessageBox.Show("Please Enter a Valid File");
				menuItem2_Click(sender,e);
			}			
			b=new Bitmap(file);
			Pic.Width=b.Width;
			Pic.Height=b.Height;
			Pic.Image=b;
			cp=new ConnectedComponents(b);
			this.Process.Enabled=true;
		}

		private void menuItem6_Click(object sender, System.EventArgs e)
		{
			cp.ObjectIsolation(b);
			Pic.Image=b;
		}

		private void menuItem7_Click(object sender, System.EventArgs e)
		{
			cp.GrayScale(b);
			Pic.Image=b;
		}

		private void Form1_Load(object sender, System.EventArgs e)
		{			
		}

		private void menuItem9_Click(object sender, System.EventArgs e)
		{
			cp.Binary(b,true);
			Pic.Image=b;
		}
	}
}