handwritingrecognition.java

通过Java编写的手写数字识别器源代码

/*
 * @(#)HandWritingRecognition.java 1.0 04/04/03
 *
 * You can modify the template of this file in the
 * directory ..\JCreator\Templates\Template_1\Project_Name.java
 *
 * You can also create your own project template by making a new
 * folder in the directory ..\JCreator\Template\. Use the other
 * templates as examples.
 *
 */
package myprojects.handwritingrecognition;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.lang.*;
import java.io.*;

class HandWritingRecognition extends JFrame implements ActionListener,ItemListener{
   JButton recognize;
   JButton train;
   JButton clear;
   JButton newSample;
   JLabel result1;
   JTextArea  result2;
   JButton choice1;
   JButton choice2;
   JTextArea status;
   JComboBox num;
   myCanvas can;
   int model;
   FileDialog fdsave;   
   FileDialog fdload;
   BufferedWriter out;
   FileWriter file_writer;   
   BufferedReader in;
   FileReader file_reader;
   JMenuItem save;
   JMenuItem load;
   JMenuItem quit;
   JMenuItem ab;
   JMenuItem edition;
   JTextArea area;
   int first,second;
   int choice;
   int resultLen=10;
   int snum=10;
   
   int [][]sample;
   int [][]input;
   int []row;
   int count;
   int stroke;
   int []x;
   int []y;
   int []dismantle;
   int []col;
   int [][]sample2;
   int d1,d2;
   boolean isSaved;
	
	public HandWritingRecognition() {
	  sample=new int[10][12];
	  sample2=new int[10][8];
	  input=new int[12][8];
	  row=new int[12];
	  count=0;
	  stroke=0;
	  x=new int[500];
	  y=new int[500];
     model=0;
     dismantle=new int[10];
	  col=new int[8];
	  d1=d2=0;
	  isSaved=true;
	  
     fdsave=new FileDialog(this,"保存文件",FileDialog.SAVE);   
     fdload=new FileDialog(this,"打开文件",FileDialog.LOAD);
	  setSize(470,520);
	  setLocation(300,100);
	  setTitle("数字手写识别器");
	  
     JMenuBar Bar=new JMenuBar();
     Bar.setOpaque(true);
     JMenu file=new JMenu("文件");
     JMenu about=new JMenu("关于");
     Bar.add(file);
     Bar.add(about);
     setJMenuBar(Bar);
     save=new JMenuItem("保存样本");
     load=new JMenuItem("读取样本");
     quit=new JMenuItem("退出");
     file.add(save);
     file.add(load);
     file.addSeparator();
     file.add(quit);
     ab=new JMenuItem("说明");
     edition=new JMenuItem("版本");
     about.add(ab);
     about.addSeparator();
     about.add(edition);
     save.addActionListener(this);
     load.addActionListener(this);
     quit.addActionListener(this);
     ab.addActionListener(this);
     edition.addActionListener(this);
	  
	  can=new myCanvas();
	  
	  Container con=getContentPane();
	  con.setLayout(null);
	  
	  JPanel p1=new JPanel();
	  p1.setLayout(null);
	  p1.add(can);
	  can.setBounds(15,15,270,270);
	  p1.setBorder(BorderFactory.createTitledBorder("手写数字输入板"));
	  con.add(p1);
	  p1.setBounds(20,60,300,300);
	  
	  recognize=new JButton("识 别");
	  clear=new JButton("清 除");
	  newSample=new JButton("新建样本");
	  train=new JButton("训 练");
	  choice1=new JButton();
	  choice2=new JButton();
	  con.add(recognize);
	  recognize.setBounds(340,70,80,30);
	  con.add(clear);
	  clear.setBounds(340,120,80,30);
	  con.add(newSample);
	  newSample.setBounds(20,15,90,30);
	  con.add(train);
	  train.setBounds(340,170,80,30);
	  String []s={"0","1","2","3","4","5","6","7","8","9"};
	  num=new JComboBox(s);
     JPanel p4=new JPanel();
     con.add(p4);
     p4.setLayout(null);
     p4.setBounds(340,210,80,50);
     p4.setBorder(BorderFactory.createTitledBorder("训练项"));
     p4.add(num);
     num.setBounds(10,15,55,25);
     
	  JPanel p2=new JPanel();
	  con.add(p2);
	  p2.setLayout(null);
	  p2.setBounds(340,260,80,100);
     p2.setBorder(BorderFactory.createTitledBorder("结果备选"));
	  p2.add(choice1);
	  p2.add(choice2);
	  choice1.setBounds(10,20,60,30);
	  choice2.setBounds(10,60,60,30);
	  
	  result1=new JLabel("识别结果:");
	  result2=new JTextArea();
	  result2.setEditable(false);
	  con.add(result1);
	  con.add(result2);
	  result1.setBounds(150,15,70,30);
	  result2.setBounds(230,15,170,30);
	  
	  JPanel p3=new JPanel();
     con.add(p3);
     p3.setLayout(null);
     p3.setBounds(20,370,400,70);
     p3.setBorder(BorderFactory.createTitledBorder("STATE："));
     area=new JTextArea();
     p3.add(area);
     area.setBounds(10,15,380,45);
     area.setEditable(false);
     
     recognize.setEnabled(false);
     choice1.setEnabled(false);
     choice2.setEnabled(false);
     train.setEnabled(false);
     num.setEnabled(false);
     clear.setEnabled(false);
     area.setText("请新建或载入手写体样本。");

     recognize.addActionListener(this);
     clear.addActionListener(this);
     train.addActionListener(this);
     newSample.addActionListener(this);
     choice1.addActionListener(this);
     choice2.addActionListener(this);
     num.addActionListener(this);
     
     
	  
		addWindowListener(new WindowAdapter() {
			public void windowClosing(WindowEvent e) {
			   
			   if(isSaved==false){
			      String s="是否要保存已修改的样本到样本文件?";
			      String t="提示";
               int check;
               JFrame f=new JFrame();
               check=JOptionPane.showConfirmDialog(f,s,t,0);
               if(check==0){
               fdsave.setVisible(true);
               try{
                  if(fdsave.getFile()!=null){
                     File file=new File(fdsave.getDirectory(),fdsave.getFile());
                     file_writer=new FileWriter(file);
                     out=new BufferedWriter(file_writer);
                     for(int i=0;i<10;i++){
                        for(int j=0;j<12;j++){
                           Integer aa=new Integer((int)sample[i][j]);
                           s=aa.toString();
                           out.write(s,0,s.length());
                           out.flush();
                           out.newLine();
                        }
                        for(int j=0;j<8;j++){
                           Integer aa=new Integer((int)sample2[i][j]);
                           s=aa.toString();
                           out.write(s,0,s.length());
                           out.flush();
                           out.newLine();
                        }
                     }
                     out.close();
                     file_writer.close();
                  }
               }catch(FileNotFoundException e1){}
               catch(IOException e2){}
               }
               isSaved=true;
            }
		      dispose();
				System.exit(0);
			}
		});
		
		setVisible(true);
		show();
	}
	
	public void standard(){
	  int minx,miny,maxx,maxy,xlen,ylen;
     minx=miny=1000;
     xlen=ylen=0;
     maxx=maxy=0;
	  for(int i=0;i<count;i++){
	     if(x[i]==-1){
	        continue;
	     }
	     if(x[i]<minx){
	        minx=x[i];
	     }
        if(y[i]<miny){
           miny=y[i];
        }
        if(x[i]>maxx){
           maxx=x[i];
        }
        if(y[i]>maxy){
           maxy=y[i];
        }
     }
     System.out.println(maxx+" "+maxy+" "+minx+" "+miny );
	  xlen=maxx-minx;
	  ylen=maxy-miny;
	  int tempi,tempj;
	  for(int i=0;i<count;i++){
	     if(x[i]==-1){
	        continue;
	     }
	     tempj=(x[i]-minx)*8/xlen;
	     tempi=(y[i]-miny)*12/ylen;
	     if(tempi>11)tempi=11;
	     if(tempj>7)tempj=7;
	     if(tempi<0)tempi=0;
	     if(tempj<0)tempj=0;
	     input[tempi][tempj]=1;
	  }
	  for(int i=0;i<12;i++){
	     int c=0;
	     for(int j=0;j<8;j++){
	        if(input[i][j]==1){
	           row[i]+=j;
	           c++;
	        }
	     }
	     row[i]*=c;
	  }
     for(int i=0;i<8;i++){
        int c=0;
        for(int j=0;j<12;j++){
           if(input[j][i]==1){
              col[i]+=j;
              c++;
           }
        }
        col[i]*=c;
     }
	  
	  for(int i=0;i<12;i++){
	     for(int j=0;j<8;j++){
	        System.out.print(input[i][j]+" ");
	     }
	     System.out.print("   "+row[i]+"\n");
	  }
	  for(int i=0;i<8;i++){
	     System.out.print(col[i]+" ");
	  }
	  System.out.println("");
   }
	         
	
	public void actionPerformed(ActionEvent e){
	  if(e.getSource()==quit){
        
            
            if(isSaved==false){
               String s="是否要保存以修改的样本到样本文件?";
               String t="提示";
               int check;
               JFrame f=new JFrame();
               check=JOptionPane.showConfirmDialog(f,s,t,0);
               if(check==0){
               fdsave.setVisible(true);
               try{
                  if(fdsave.getFile()!=null){
                     File file=new File(fdsave.getDirectory(),fdsave.getFile());
                     file_writer=new FileWriter(file);
                     out=new BufferedWriter(file_writer);
                     for(int i=0;i<10;i++){
                        for(int j=0;j<12;j++){
                           Integer aa=new Integer((int)sample[i][j]);
                           s=aa.toString();
                           out.write(s,0,s.length());
                           out.flush();
                           out.newLine();
                        }