form1.cs

Unicode Optical Character Recognition

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Text;
using System.IO;
using System.Threading;



namespace Unicode_OCR
{	
	public class Form1 : System.Windows.Forms.Form
	{
		private System.Windows.Forms.PictureBox pictureBox1;
		private System.Windows.Forms.PictureBox pictureBox2;
		private System.Windows.Forms.TextBox textBox1;
		private System.Windows.Forms.TextBox textBox2;
		private System.Windows.Forms.Button button2;
		private System.Windows.Forms.TextBox textBox3;
		private System.Windows.Forms.TextBox textBox4;
		private System.Windows.Forms.Button button3;
		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.GroupBox groupBox1;
		private System.Windows.Forms.Label label5;	
		private System.Windows.Forms.ComboBox comboBox1;
		private System.Windows.Forms.GroupBox groupBox2;
		private System.Windows.Forms.TextBox textBox6;
		private System.Windows.Forms.TextBox textBox7;
		private System.Windows.Forms.Label label6;
		private System.Windows.Forms.Label label7;
		private System.Windows.Forms.ComboBox comboBox2;
		private System.Windows.Forms.Label label10;
		private System.Windows.Forms.GroupBox groupBox3;
		private System.Windows.Forms.Label label8;
		private System.Windows.Forms.GroupBox groupBox4;
		private System.Windows.Forms.GroupBox groupBox5;
		private System.Windows.Forms.Label label9;
		private System.Windows.Forms.Label label11;
		private System.Windows.Forms.Label label12;
		private System.Windows.Forms.TextBox textBox8;
		private System.Windows.Forms.Button button1;
		private System.Windows.Forms.GroupBox groupBox6;
		private System.Windows.Forms.Button button4;
		private System.Windows.Forms.ProgressBar progressBar1;
		private System.Windows.Forms.Label label13;
		private System.Windows.Forms.Label label14;
		private System.Windows.Forms.Label label15;
		private System.Windows.Forms.Label label16;
		private System.Windows.Forms.Label label17;
		private System.Windows.Forms.Label label20;
		private System.Windows.Forms.Label label21;
		private System.Windows.Forms.Label label22;
		private System.Windows.Forms.Label label23;
		private System.Windows.Forms.Button button5;
		private System.Windows.Forms.Button button6;
		private System.Windows.Forms.ComboBox comboBox3;
		private System.Windows.Forms.Label label26;
		private System.Windows.Forms.Label label27;
		private System.Windows.Forms.Button button7;
		private System.Windows.Forms.Button button13;
		private System.Windows.Forms.Button button14;
		private System.Windows.Forms.Button button15;
		private System.Windows.Forms.Label label25;
		private System.Windows.Forms.Label label18;	
		private System.Windows.Forms.Label label19;
		private System.Windows.Forms.Label label24;
		private System.Windows.Forms.Label label28;
		private System.Windows.Forms.Label label29;
		private System.Windows.Forms.Label label30;	
		private System.Windows.Forms.RichTextBox richTextBox1;	
		private System.ComponentModel.IContainer components=null;
		private System.Windows.Forms.OpenFileDialog openFileDialog1;
		private System.Windows.Forms.SaveFileDialog saveFileDialog1;

		public
															//LAST WORKING VALUES
		const int number_of_layers=3;						//3
		const int number_of_input_nodes=150;				//150
		const int number_of_output_nodes=16;	     		//16
		const int maximum_layers=250;					    //250
		const int maximum_number_of_sets=100;				//100
		int number_of_input_sets;					        
		int epochs =300;	   							    //300 & 600(For Latin Arial)
		const float error_threshold=0.0002F;				//0.0002F
		

		float learning_rate=150F;							//150F
		float slope=0.014F;									//0.014F	
		int weight_bias=30;									//30

		int[] layers=new int [number_of_layers];
		float[] current_input=new float [number_of_input_nodes];
		float[,] input_set=new float [number_of_input_nodes,maximum_number_of_sets];
		int[] desired_output=new int [number_of_output_nodes];
		int[,] desired_output_set=new int [number_of_output_nodes,maximum_number_of_sets];
		float[,] node_output=new float [number_of_layers,maximum_layers];
		float[,,] weight=new float [number_of_layers,maximum_layers,maximum_layers];
		float[,] error=new float [number_of_layers,maximum_layers];		
		int[] output_bit=new int [number_of_output_nodes];	
		int[] desired_output_bit = new int [number_of_output_nodes];

		const int rec_width = 5;
		const int rec_height = 5;
		const int x_org=498;
		const int y_org=120;

		const int matrix_width=20;
		const int matrix_height=30;
		int image_start_pixel_x=0;
		int image_start_pixel_y=0;
		int[] line_top=new int [20];
		int[] line_bottom=new int [20];
		int current_line=0;
		int number_of_lines=0;
		bool line_present=true;
		bool character_valid=true;
		bool character_present=true;
		bool trainer_thread_created=false;

		string image_file_name;
		string image_file_path;
		string character_trainer_set_file_name;
		string character_trainer_set_file_path;
		string network_file_name;		
		string trainer_string;		
		string output_string;
		System.IO.StreamReader  image_file_stream;
		System.IO.StreamReader  character_trainer_set_file_stream;
		System.IO.StreamWriter  network_save_file_stream;
		System.IO.StreamReader  network_load_file_stream;
		
		
		Random rnd = new Random();
		Thread trainer_thread;	
		UnicodeEncoding unicode = new UnicodeEncoding();
			
		
		Color[,] ann_input_pixel = new Color[20,30];
		Color[,] character_image_pixel = new Color[600,800];
		int[,] ann_input_value=new int [20,30];
		
		int[] sample_pixel_x=new int [20];
		int[] sample_pixel_y=new int [30];
					
		int input_image_height;
		int input_image_width;
		int top,bottom,left,right;	
		int prev_right=20;
		int character_height;
		int character_width;		
		
		Bitmap input_image;
		private System.Windows.Forms.NumericUpDown numericUpDown1;
		private System.Windows.Forms.Label label31;							
		Bitmap character_image;			
				
		public Form1()
		{			
			InitializeComponent();			
			// TODO: Add any constructor code after InitializeComponent call			
		}
	
		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()
		{
			System.Configuration.AppSettingsReader configurationAppSettings = new System.Configuration.AppSettingsReader();
			this.pictureBox1 = new System.Windows.Forms.PictureBox();
			this.textBox1 = new System.Windows.Forms.TextBox();
			this.textBox2 = new System.Windows.Forms.TextBox();
			this.button2 = new System.Windows.Forms.Button();
			this.pictureBox2 = new System.Windows.Forms.PictureBox();
			this.textBox3 = new System.Windows.Forms.TextBox();
			this.textBox4 = new System.Windows.Forms.TextBox();
			this.openFileDialog1 = new System.Windows.Forms.OpenFileDialog();
			this.button3 = 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.label4 = new System.Windows.Forms.Label();
			this.groupBox1 = new System.Windows.Forms.GroupBox();
			this.label5 = new System.Windows.Forms.Label();
			this.comboBox1 = new System.Windows.Forms.ComboBox();
			this.groupBox2 = new System.Windows.Forms.GroupBox();
			this.label7 = new System.Windows.Forms.Label();
			this.label6 = new System.Windows.Forms.Label();
			this.textBox6 = new System.Windows.Forms.TextBox();
			this.textBox7 = new System.Windows.Forms.TextBox();
			this.comboBox2 = new System.Windows.Forms.ComboBox();
			this.label10 = new System.Windows.Forms.Label();
			this.groupBox3 = new System.Windows.Forms.GroupBox();
			this.label8 = new System.Windows.Forms.Label();
			this.groupBox4 = new System.Windows.Forms.GroupBox();
			this.label31 = new System.Windows.Forms.Label();
			this.numericUpDown1 = new System.Windows.Forms.NumericUpDown();
			this.button7 = new System.Windows.Forms.Button();
			this.label27 = new System.Windows.Forms.Label();
			this.label26 = new System.Windows.Forms.Label();
			this.label22 = new System.Windows.Forms.Label();
			this.label23 = new System.Windows.Forms.Label();
			this.label21 = new System.Windows.Forms.Label();
			this.label20 = new System.Windows.Forms.Label();
			this.label17 = new System.Windows.Forms.Label();
			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.progressBar1 = new System.Windows.Forms.ProgressBar();
			this.button4 = new System.Windows.Forms.Button();
			this.button1 = new System.Windows.Forms.Button();
			this.groupBox5 = new System.Windows.Forms.GroupBox();
			this.label30 = new System.Windows.Forms.Label();
			this.richTextBox1 = new System.Windows.Forms.RichTextBox();
			this.button13 = new System.Windows.Forms.Button();
			this.textBox8 = new System.Windows.Forms.TextBox();
			this.label12 = new System.Windows.Forms.Label();
			this.label11 = new System.Windows.Forms.Label();
			this.label9 = new System.Windows.Forms.Label();
			this.label25 = new System.Windows.Forms.Label();
			this.comboBox3 = new System.Windows.Forms.ComboBox();
			this.groupBox6 = new System.Windows.Forms.GroupBox();
			this.label29 = new System.Windows.Forms.Label();
			this.label28 = new System.Windows.Forms.Label();
			this.label24 = new System.Windows.Forms.Label();
			this.label19 = new System.Windows.Forms.Label();
			this.label18 = new System.Windows.Forms.Label();
			this.button14 = new System.Windows.Forms.Button();
			this.button15 = new System.Windows.Forms.Button();
			this.button5 = new System.Windows.Forms.Button();
			this.button6 = new System.Windows.Forms.Button();
			this.saveFileDialog1 = new System.Windows.Forms.SaveFileDialog();
			this.groupBox1.SuspendLayout();
			this.groupBox2.SuspendLayout();
			this.groupBox3.SuspendLayout();
			this.groupBox4.SuspendLayout();
			((System.ComponentModel.ISupportInitialize)(this.numericUpDown1)).BeginInit();
			this.groupBox5.SuspendLayout();
			this.groupBox6.SuspendLayout();
			this.SuspendLayout();
			// 
			// pictureBox1
			// 
			this.pictureBox1.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
			this.pictureBox1.Location = new System.Drawing.Point(16, 120);
			this.pictureBox1.Name = "pictureBox1";
			this.pictureBox1.Size = new System.Drawing.Size(336, 150);
			this.pictureBox1.TabIndex = 0;
			this.pictureBox1.TabStop = false;
			// 
			// textBox1
			// 
			this.textBox1.Location = new System.Drawing.Point(8, 40);
			this.textBox1.Name = "textBox1";
			this.textBox1.Size = new System.Drawing.Size(32, 20);
			this.textBox1.TabIndex = 3;
			this.textBox1.Text = "";
			// 
			// textBox2
			// 
			this.textBox2.Location = new System.Drawing.Point(8, 16);
			this.textBox2.Name = "textBox2";
			this.textBox2.Size = new System.Drawing.Size(32, 20);
			this.textBox2.TabIndex = 4;
			this.textBox2.Text = "";
			// 
			// button2
			// 
			this.button2.Location = new System.Drawing.Point(16, 272);
			this.button2.Name = "button2";
			this.button2.Size = new System.Drawing.Size(80, 24);
			this.button2.TabIndex = 5;
			this.button2.Text = "Load Image";
			this.button2.Click += new System.EventHandler(this.button2_Click);
			// 
			// pictureBox2
			// 
			this.pictureBox2.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
			this.pictureBox2.Location = new System.Drawing.Point(360, 120);
			this.pictureBox2.Name = "pictureBox2";
			this.pictureBox2.Size = new System.Drawing.Size(100, 150);
			this.pictureBox2.SizeMode = System.Windows.Forms.PictureBoxSizeMode.StretchImage;
			this.pictureBox2.TabIndex = 6;
			this.pictureBox2.TabStop = false;
			// 
			// textBox3
			// 
			this.textBox3.Location = new System.Drawing.Point(96, 40);
			this.textBox3.Name = "textBox3";
			this.textBox3.Size = new System.Drawing.Size(32, 20);
			this.textBox3.TabIndex = 7;
			this.textBox3.Text = "";
			// 
			// textBox4
			// 
			this.textBox4.Location = new System.Drawing.Point(96, 16);
			this.textBox4.Name = "textBox4";
			this.textBox4.Size = new System.Drawing.Size(32, 20);
			this.textBox4.TabIndex = 8;
			this.textBox4.Text = "";
			// 
			// openFileDialog1
			// 
			this.openFileDialog1.AddExtension = false;
			this.openFileDialog1.DefaultExt = ((string)(configurationAppSettings.GetValue("openFileDialog1.DefaultExt", typeof(string))));
			// 
			// button3
			// 
			this.button3.Location = new System.Drawing.Point(104, 272);
			this.button3.Name = "button3";
			this.button3.Size = new System.Drawing.Size(88, 24);
			this.button3.TabIndex = 9;
			this.button3.Text = "Next Character";
			this.button3.Click += new System.EventHandler(this.button3_Click);
			// 
			// label1
			// 
			this.label1.Location = new System.Drawing.Point(40, 40);
			this.label1.Name = "label1";
			this.label1.Size = new System.Drawing.Size(24, 16);
			this.label1.TabIndex = 10;
			this.label1.Text = "Top";
			// 
			// label2
			// 
			this.label2.Location = new System.Drawing.Point(40, 16);
			this.label2.Name = "label2";
			this.label2.Size = new System.Drawing.Size(24, 16);
			this.label2.TabIndex = 11;
			this.label2.Text = "Left";
			// 
			// label3
			//