form1.cs

OCR字符识别源代码

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using xpidea.neuro.net.patterns;
using xpidea.neuro.net.backprop;


namespace xpidea.neuro.net.examples.backprop.ocr
{
	
	/// <summary>
	/// Summary description for Form1.
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
		static public bool IsTerminated;
		public class OCRNetwork: BackPropagationRPROPNetwork
		{
			
			private Form1 owner;
			public OCRNetwork (Form1 owner, int[] nodesInEachLayer):base(nodesInEachLayer)
			{
				this.owner = owner;
			}
			private int OutputPatternIndex(Pattern pattern)
			{
				for (int i = 0; i<pattern.OutputsCount;i++)
					if (pattern.Output[i] == 1 )
						return i;
				return -1;
			}

			public void AddNoiseToInputPattern(int levelPercent)
			{
				int i = ((NodesInLayer(0) - 1) * levelPercent)/100;
				while (i > 0) 
				{
					nodes[(int)(BackPropagationNetwork.Random(0, NodesInLayer(0) - 1))].Value = BackPropagationNetwork.Random(0, 100);
					i--;
				}

			}

			public int BestNodeIndex 
			{ 
				get 
				{
					int result = -1;
					double aMaxNodeValue = 0;
					double aMinError = double.PositiveInfinity;
					for (int i = 0; i< this.OutputNodesCount;i++)
					{
						NeuroNode node = OutputNode(i);
						if ((node.Value > aMaxNodeValue)||((node.Value >= aMaxNodeValue)&&(node.Error < aMinError))) 
						{
							aMaxNodeValue = node.Value;
							aMinError = node.Error;
							result = i;
						}
    
					}
					return result;
				}
			}
			public override void Train(PatternsCollection patterns) 
			{
							
				int  iteration = 0;
				if (patterns != null) 
				{
					double error = 0;
					int good = 0;
					while (good < patterns.Count) // Train until all patterns are correct
					{
						if (Form1.IsTerminated) return;
						error = 0;
						owner.progressBar1.Value = good;
						owner.label16.Text = "Training progress: " + ((good * 100)/owner.progressBar1.Maximum).ToString() + "%";
						good = 0;
						for (int i = 0; i<patterns.Count; i++)
						{
							for (int k = 0; k<NodesInLayer(0); k++)	
								nodes[k].Value = patterns[i].Input[k];
							AddNoiseToInputPattern(owner.trackBar3.Value);
							this.Run();
							for (int k = 0;k< this.OutputNodesCount;k++) 
							{
								error += Math.Abs(this.OutputNode(k).Error);
								this.OutputNode(k).Error = patterns[i].Output[k];
							}
							this.Learn();
							if (BestNodeIndex == OutputPatternIndex(patterns[i]))
								good++;
							
							iteration ++;						
							Application.DoEvents();

						}

						foreach (NeuroLink link in links) ((EpochBackPropagationLink)link).Epoch(patterns.Count);

						if ((iteration%2) == 0)
							owner.label17.Text = "AVG Error: " + (error / OutputNodesCount).ToString() + "  Iteration: " + iteration.ToString();
					}
					owner.label17.Text = "AVG Error: " + (error / OutputNodesCount).ToString() + "  Iteration: " + iteration.ToString();
				}

			}
		
		}
	
		public static int aMatrixDim = 10;
		public static byte aFirstChar =  (byte)'A';
		public static byte aLastChar = (byte)'z';
		public static int aCharsCount = aLastChar - aFirstChar +1;
		public PatternsCollection trainingPatterns;
		public OCRNetwork backpropNetwork;

		#region Variables
		private System.Windows.Forms.PictureBox pictureBox1;
		private System.Windows.Forms.TabControl tabControl1;
		private System.Windows.Forms.TabPage tabPage1;
		private System.Windows.Forms.TabPage tabPage2;
		private System.Windows.Forms.TabPage tabPage3;
		private System.Windows.Forms.TabPage tabPage4;
		private System.Windows.Forms.Label label1;
		private System.Windows.Forms.Label label2;
		private System.Windows.Forms.Label label3;
		private System.Windows.Forms.Label label4;
		private System.Windows.Forms.Label label5;
		private System.Windows.Forms.Button button1;
		private System.Windows.Forms.Button button2;
		private System.Windows.Forms.Button button3;
		private System.Windows.Forms.Button button4;
		private System.Windows.Forms.Button button5;
		private System.Windows.Forms.TrackBar trackBar3;
		private System.Windows.Forms.Label label8;
		private System.Windows.Forms.Label label9;
		private System.Windows.Forms.Label label10;
		private System.Windows.Forms.TrackBar trackBar4;
		private System.Windows.Forms.Label label11;
		private System.Windows.Forms.Label label12;
		private System.Windows.Forms.Label label13;
		private System.Windows.Forms.Label label14;
		private System.Windows.Forms.Label label15;
		private System.Windows.Forms.ProgressBar progressBar1;
		private System.Windows.Forms.Label label16;
		private System.Windows.Forms.Label label17;
		private System.Windows.Forms.OpenFileDialog openFileDialog1;
		private System.Windows.Forms.SaveFileDialog saveFileDialog1;
		/// <summary>
		/// Required designer variable.
		/// </summary>
		private System.ComponentModel.Container components = null;
		#endregion
		#region OtherJunk
		public Form1()
		{
			//
			// Required for Windows Form Designer support
			//
			InitializeComponent();

			//
			// TODO: Add any constructor code after InitializeComponent call
			//
			label5.Text = "";
			for (int i=0; i<aCharsCount; i++)
				label5.Text += Convert.ToChar(aFirstChar + i) + " ";
		}

		/// <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.pictureBox1 = new System.Windows.Forms.PictureBox();
			this.tabControl1 = new System.Windows.Forms.TabControl();
			this.tabPage1 = new System.Windows.Forms.TabPage();
			this.button1 = new System.Windows.Forms.Button();
			this.label5 = new System.Windows.Forms.Label();
			this.label1 = new System.Windows.Forms.Label();
			this.tabPage2 = new System.Windows.Forms.TabPage();
			this.button2 = new System.Windows.Forms.Button();
			this.label2 = new System.Windows.Forms.Label();
			this.tabPage3 = new System.Windows.Forms.TabPage();
			this.label17 = new System.Windows.Forms.Label();
			this.progressBar1 = new System.Windows.Forms.ProgressBar();
			this.label9 = new System.Windows.Forms.Label();
			this.label8 = new System.Windows.Forms.Label();
			this.trackBar3 = new System.Windows.Forms.TrackBar();
			this.button5 = new System.Windows.Forms.Button();
			this.button4 = new System.Windows.Forms.Button();
			this.button3 = new System.Windows.Forms.Button();
			this.label3 = new System.Windows.Forms.Label();
			this.tabPage4 = new System.Windows.Forms.TabPage();
			this.label16 = new System.Windows.Forms.Label();
			this.label15 = new System.Windows.Forms.Label();
			this.label14 = new System.Windows.Forms.Label();
			this.label13 = new System.Windows.Forms.Label();
			this.label12 = new System.Windows.Forms.Label();
			this.label11 = new System.Windows.Forms.Label();
			this.label10 = new System.Windows.Forms.Label();
			this.trackBar4 = new System.Windows.Forms.TrackBar();
			this.label4 = new System.Windows.Forms.Label();
			this.openFileDialog1 = new System.Windows.Forms.OpenFileDialog();
			this.saveFileDialog1 = new System.Windows.Forms.SaveFileDialog();
			this.tabControl1.SuspendLayout();
			this.tabPage1.SuspendLayout();
			this.tabPage2.SuspendLayout();
			this.tabPage3.SuspendLayout();
			((System.ComponentModel.ISupportInitialize)(this.trackBar3)).BeginInit();
			this.tabPage4.SuspendLayout();
			((System.ComponentModel.ISupportInitialize)(this.trackBar4)).BeginInit();
			this.SuspendLayout();
			// 
			// pictureBox1
			// 
			this.pictureBox1.Dock = System.Windows.Forms.DockStyle.Right;
			this.pictureBox1.Location = new System.Drawing.Point(392, 0);
			this.pictureBox1.Name = "pictureBox1";
			this.pictureBox1.Size = new System.Drawing.Size(200, 266);
			this.pictureBox1.SizeMode = System.Windows.Forms.PictureBoxSizeMode.StretchImage;
			this.pictureBox1.TabIndex = 0;
			this.pictureBox1.TabStop = false;
			// 
			// tabControl1
			// 
			this.tabControl1.Controls.AddRange(new System.Windows.Forms.Control[] {
																					  this.tabPage1,
																					  this.tabPage2,
																					  this.tabPage3,
																					  this.tabPage4});
			this.tabControl1.Dock = System.Windows.Forms.DockStyle.Fill;
			this.tabControl1.Name = "tabControl1";
			this.tabControl1.SelectedIndex = 0;
			this.tabControl1.Size = new System.Drawing.Size(392, 266);
			this.tabControl1.TabIndex = 1;
			this.tabControl1.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.tabControl1_KeyPress);
			// 
			// tabPage1
			// 
			this.tabPage1.Controls.AddRange(new System.Windows.Forms.Control[] {
																				   this.button1,
																				   this.label5,
																				   this.label1});
			this.tabPage1.Location = new System.Drawing.Point(4, 22);
			this.tabPage1.Name = "tabPage1";
			this.tabPage1.Size = new System.Drawing.Size(384, 240);
			this.tabPage1.TabIndex = 0;
			this.tabPage1.Text = "Step 1";
			// 
			// button1
			// 
			this.button1.Location = new System.Drawing.Point(112, 192);
			this.button1.Name = "button1";
			this.button1.Size = new System.Drawing.Size(152, 24);
			this.button1.TabIndex = 2;
			this.button1.Text = "Generate training patterns";
			this.button1.Click += new System.EventHandler(this.button1_Click);
			// 
			// label5
			// 
			this.label5.Font = new System.Drawing.Font("Microsoft Sans Serif", 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.label5.Location = new System.Drawing.Point(16, 48);
			this.label5.Name = "label5";
			this.label5.Size = new System.Drawing.Size(352, 104);
			this.label5.TabIndex = 1;
			this.label5.Text = "label5";
			this.label5.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
			// 
			// label1
			// 
			this.label1.BackColor = System.Drawing.SystemColors.InactiveCaption;
			this.label1.Dock = System.Windows.Forms.DockStyle.Top;
			this.label1.Font = new System.Drawing.Font("Microsoft Sans Serif", 9.75F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.label1.ForeColor = System.Drawing.SystemColors.Window;
			this.label1.Name = "label1";
			this.label1.Size = new System.Drawing.Size(384, 32);
			this.label1.TabIndex = 0;
			this.label1.Text = "   Step1:   Generate neural network training patterns";
			this.label1.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
			// 
			// tabPage2
			// 
			this.tabPage2.Controls.AddRange(new System.Windows.Forms.Control[] {
																				   this.button2,
																				   this.label2});
			this.tabPage2.Location = new System.Drawing.Point(4, 22);
			this.tabPage2.Name = "tabPage2";
			this.tabPage2.Size = new System.Drawing.Size(384, 240);
			this.tabPage2.TabIndex = 1;
			this.tabPage2.Text = "Step 2";
			// 
			// button2
			// 
			this.button2.Location = new System.Drawing.Point(88, 128);
			this.button2.Name = "button2";
			this.button2.Size = new System.Drawing.Size(200, 24);
			this.button2.TabIndex = 6;
			this.button2.Text = "Create the network";
			this.button2.Click += new System.EventHandler(this.button2_Click);
			// 
			// label2
			// 
			this.label2.BackColor = System.Drawing.SystemColors.InactiveCaption;
			this.label2.Dock = System.Windows.Forms.DockStyle.Top;
			this.label2.Font = new System.Drawing.Font("Microsoft Sans Serif", 9.75F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.label2.ForeColor = System.Drawing.SystemColors.Window;
			this.label2.Name = "label2";
			this.label2.Size = new System.Drawing.Size(384, 32);
			this.label2.TabIndex = 1;
			this.label2.Text = "   Step2:  Create Backpropagation Neural Network";
			this.label2.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
			// 
			// tabPage3
			// 
			this.tabPage3.Controls.AddRange(new System.Windows.Forms.Control[] {
																				   this.label17,
																				   this.progressBar1,
																				   this.label9,
																				   this.label8,
																				   this.trackBar3,
																				   this.button5,
																				   this.button4,
																				   this.button3,
																				   this.label3});
			this.tabPage3.Location = new System.Drawing.Point(4, 22);
			this.tabPage3.Name = "tabPage3";
			this.tabPage3.Size = new System.Drawing.Size(384, 240);
			this.tabPage3.TabIndex = 2;
			this.tabPage3.Text = "Step 3";
			// 
			// label17
			// 
			this.label17.Dock = System.Windows.Forms.DockStyle.Bottom;
			this.label17.Location = new System.Drawing.Point(0, 200);
			this.label17.Name = "label17";
			this.label17.Size = new System.Drawing.Size(384, 16);
			this.label17.TabIndex = 9;
			this.label17.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
			// 
			// progressBar1
			// 
			this.progressBar1.Dock = System.Windows.Forms.DockStyle.Bottom;
			this.progressBar1.Location = new System.Drawing.Point(0, 216);
			this.progressBar1.Name = "progressBar1";
			this.progressBar1.Size = new System.Drawing.Size(384, 24);
			this.progressBar1.TabIndex = 8;
			// 
			// label9
			// 
			this.label9.Location = new System.Drawing.Point(184, 120);
			this.label9.Name = "label9";
			this.label9.Size = new System.Drawing.Size(176, 64);
			this.label9.TabIndex = 7;
			// 
			// label8
			// 
			this.label8.Location = new System.Drawing.Point(184, 40);
			this.label8.Name = "label8";