/* * ocrdemo.java * THIS is a swing-based OCR application with MLP  neural network *//** * * @author  wwwang */import javax.swing.*;import javax.swing.event.*;import java.awt.event.*;import java.awt.Container;import java.awt.BorderLayout;import java.awt.GridLayout;import java.io.*;import java.awt.Component;import javax.swing.border.Border;import java.util.*;public class ocrdemo extends JFrame{    private static final String symbolfile = "ochre.txt";    double[][] targets;    float[] errall;    boolean isTraining = false;        private int rawdim,s1,s2,s3,nSymbols;    MLP  network;         // The neural network.    private double[][][] inputImages;    private DigitMatrix[] symbolSet;    private DigitMatrix curDigit;    private DigitMatrix  customDigit;    private LedPanel[] symbolSetLight;    private JPanel[] miniTestPanels;    private XYPlot graph,graphl;    private JButton startTrainBtn = new JButton("開始訓練");     private JButton stopTrainBtn = new JButton("訓練停止");    private JButton resetNetworkBtn = new JButton("重設網絡");    private JButton resetInputBtn = new JButton("重新輸入");    private JButton saveAllErrBtn = new JButton("誤差輸出");    private JButton clearBtn = new JButton("清除");    private JButton blurBtn = new JButton("淡化");    private JButton sharpBtn = new JButton("銳化");    private JButton recognizeBtn = new JButton("識別");    private JButton saveBtn=new JButton("保存");    private JLabel s1Label = new JLabel("第一隱含層的神經元:");    private JLabel s2Label = new JLabel("第二隱含層的神經元:");    private JLabel epochLabel = new JLabel("訓練數:");    private JLabel errorLabel = new JLabel("分類誤差和:");    private Border emptyBorder = BorderFactory.createEmptyBorder(4,4,4,4);    private Border bevelBorder = BorderFactory.createLoweredBevelBorder();    private Border etchedBorder = BorderFactory.createEtchedBorder();    private JTextField s1Text, s2Text, errorText, epochText;    private DigitMatrix networkOutput;    private Vector v=new Vector(1);    private String ends;           private javax.swing.Timer timer;    private static final int START_INDEX = 9;    private String[] digitstrs = 		{ "0", "1", "2", "3", "4", "5", "6", "7" , "8", "9" };    private JComboBox	digitChoices;    public ocrdemo(String title) {	super(title);	setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);	initContentPane();	testAllPatterns();        //Set up a timer that calls this object's action handler.        timer = new javax.swing.Timer(100, new ActionListener() {	    public void actionPerformed(ActionEvent e) {		timerAction(e);	    }	} );        timer.setInitialDelay(0);        timer.setCoalesce(true);    }    private void timerAction(ActionEvent e) {	String errorval;        int p=0;	if (isTraining == false) {		return ;	} else {	    epochText.setText(Integer.toString(network.getepoch()));   //         errall[p]=(float)network.trainNet();	    errorval = Float.toString((float)network.trainNet());   //         System.out.println(errall[i]);          	    errorText.setText(errorval);	    ends=addErrData(errorval);	    testAllPatterns();	}	return ;    }/**通過這個方法取得所有的均方誤差值，并將他們用String類型返回。在前面建立了vector型的可變數組。   2個print是為了測試是否讀入了誤差值，數組的長度是否增長。   要是可以調用valueOf方法直接返回double將更好！ */	    public String addErrData(String errorval){      // System.out.println(errorval);             v.addElement(errorval);       String s=v.toString();     //  int numb=v.size();     //  System.out.println(numb);     //  System.out.println(s);     //  double[] allvalue=valueOf(s);    //  System.out.println(allvalue);       return(s);     }    /** 如何讓它能夠繼承上面的方法？    public String addErr(){      super(errorval);    }*/        private void initContentPane(){	rawdim = 192; s1 = 8; s2 = 6; s3 = 10; nSymbols = s3;	targets = new double[s3][nSymbols];	for (int i=0; i<s3; i++) {	    for (int j=0; j<nSymbols; j++) {		if (i==j) {		    targets[i][j]=1;		} else {		    targets[i][j]=0;		}	    }	}		/* Initialize a new MLP object */	network = new MLP(rawdim,s1,s2,s3);	inputImages = new double[nSymbols][16][12];		/* Load the symbol forms from digitURL into symbolSet objects */	try {		readSymbolFile(symbolfile);	} catch (java.io.IOException e) {	    System.out.println("IO Exception... file error");	}		JPanel testPanel, trainPanel,showPlot;	testPanel = new  JPanel();	initTestPanel(testPanel);		trainPanel = new JPanel();	initTrainPanel(trainPanel);              //  showPlot=new JPanel();      //  initShowPanel(showPlot);		JPanel contentPane = (JPanel)getContentPane();	contentPane.setLayout(new GridLayout(2,1,5,5));	contentPane.setBorder( BorderFactory.createCompoundBorder(etchedBorder, 			emptyBorder) );	contentPane.add(trainPanel);	contentPane.add(testPanel);        //contentPane.add(showPlot);		    }    //plot 誤差輸出圖的機構和初始化。   /** public void initShowPanel(JPanel showPlot){        	graphl = new XYPlot();        graphl.setBackground(java.awt.Color.black);	graphl.setBorder(new javax.swing.border.LineBorder( 		new java.awt.Color(0,0,255), 1) );        JPanel showPanel = new JPanel();	showPanel.setLayout(new BorderLayout());        showPanel.setBorder( BorderFactory.createCompoundBorder(                              BorderFactory.createTitledBorder("誤差輸出圖"),                              emptyBorder) );	showPanel.add(graphl, BorderLayout.CENTER);	    }*/        public void initTestPanel(JPanel testPanel) {	digitChoices = new JComboBox(digitstrs);        digitChoices.setSelectedIndex(START_INDEX);	digitChoices.addActionListener( new ActionListener() {	    public void actionPerformed(ActionEvent evt) {		digitChoicesAction(evt);	    }	} );	symbolSet = new DigitMatrix[nSymbols];	symbolSetLight = new LedPanel[nSymbols];	miniTestPanels = new JPanel[nSymbols];	for (int i=0;i<nSymbols;i++) {	    symbolSet[i] = new DigitMatrix(16,12,6,6,.1f,.6f,true,false);	    symbolSet[i].addMouseListener(symbolSet[i]);	    symbolSet[i].addMouseMotionListener(symbolSet[i]);	    symbolSet[i].addKeyListener(symbolSet[i]);	    symbolSet[i].setMatrix(inputImages[i]);	    symbolSetLight[i] = new LedPanel();	    miniTestPanels[i] = new JPanel();	    miniTestPanels[i].setLayout(new BorderLayout());	    miniTestPanels[i].setBorder(etchedBorder);	    miniTestPanels[i].add( new JLabel(Integer.toString(i)), BorderLayout.NORTH );	    miniTestPanels[i].add(symbolSetLight[i], BorderLayout.CENTER); 	}	JPanel ledPane = new JPanel();	ledPane.setLayout( new GridLayout(0, nSymbols, 2, 2) );	for(int i=0; i<nSymbols; i++) {	    ledPane.add(miniTestPanels[i]);	}		curDigit = symbolSet[START_INDEX];	JPanel predefinedDigitPane = new JPanel();	predefinedDigitPane.add(curDigit);	predefinedDigitPane.add(digitChoices);		customDigit = new DigitMatrix(16,12,6,6,.1f,.6f,true,false);	customDigit.addMouseListener(customDigit);	customDigit.addMouseMotionListener(customDigit);		clearBtn.addActionListener( new ActionListener() {	    public void actionPerformed(ActionEvent evt) {		clearBtnAction(evt);	    }	} );	blurBtn.addActionListener( new ActionListener() {	    public void actionPerformed(ActionEvent evt) {		blurBtnAction(evt);	    }	} );	sharpBtn.addActionListener( new ActionListener() {	    public void actionPerformed(ActionEvent evt) {		sharpBtnAction(evt);	    }	} );	recognizeBtn.addActionListener( new ActionListener() {	    public void actionPerformed(ActionEvent evt) {		recognizeBtnAction(evt);	    }	} );	saveBtn.addActionListener(new ActionListener(){	    public void actionPerformed(ActionEvent evt){	        saveBtnAction(evt);	    }	} );	JPanel custumCtrlPane = new JPanel();	custumCtrlPane.setLayout(new GridLayout(5,0,1,1));	custumCtrlPane.setBorder(emptyBorder);	custumCtrlPane.add(clearBtn);	custumCtrlPane.add(blurBtn);	custumCtrlPane.add(sharpBtn);	custumCtrlPane.add(recognizeBtn);	custumCtrlPane.add(saveBtn);	JPanel customDigitPane = new JPanel();	customDigitPane.setLayout(new BorderLayout());	customDigitPane.setBorder(BorderFactory.createCompoundBorder(                              BorderFactory.createTitledBorder("畫圖"),                              emptyBorder));	customDigitPane.add(customDigit, BorderLayout.CENTER);	customDigitPane.add(custumCtrlPane, BorderLayout.EAST);		JPanel displayPanel = new JPanel();	displayPanel.setBorder(BorderFactory.createCompoundBorder(                              BorderFactory.createTitledBorder("圖像輸入"),                              emptyBorder));	displayPanel.setLayout( new GridLayout(0,2,3,3) );	displayPanel.add(predefinedDigitPane);	displayPanel.add(customDigitPane);		JPanel leftPane = new JPanel();	leftPane.setLayout(new BorderLayout());	leftPane.add(displayPanel, BorderLayout.CENTER);	leftPane.add(ledPane, BorderLayout.SOUTH);		graph = new XYPlot();        graph.setBackground(java.awt.Color.black);	graph.setBorder(new javax.swing.border.LineBorder( 		new java.awt.Color(0,0,255), 1) );		JPanel outputPane = new JPanel();	outputPane.setLayout(new BorderLayout());        outputPane.setBorder( BorderFactory.createCompoundBorder(                              BorderFactory.createTitledBorder("網絡輸出"),                              emptyBorder) );	outputPane.add(graph, BorderLayout.CENTER);	testPanel.setLayout( new GridLayout(1,1,4,4));	testPanel.setBorder(emptyBorder);	testPanel.add(leftPane);	testPanel.add(outputPane);    }    private void digitChoicesAction( ActionEvent e) {	int digitIndex = -1;		if ("comboBoxChanged".equals(e.getActionCommand())) {	    digitIndex = digitChoices.getSelectedIndex();	    curDigit.setMatrix(inputImages[digitIndex]);	    testOnePattern( symbolSet[digitIndex] );	}	return ;    }    private void clearBtnAction(ActionEvent e) {	customDigit.clear();    }        private void blurBtnAction(ActionEvent e) {	customDigit.filter(DigitMatrix.BLUR);    }        private void sharpBtnAction(ActionEvent e) {	customDigit.filter(DigitMatrix.SHARPEN);    }        private void recognizeBtnAction(ActionEvent e) {	testOnePattern(customDigit);	testTwoPattern(ends);    }    //save    private void saveBtnAction(ActionEvent e){         saveOnePattern(customDigit);