| 主程序如下： package dege.imagetool; import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.Image;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage;
import java.awt.image.ColorModel;
import java.awt.image.MemoryImageSource;
import java.awt.image.PixelGrabber;
import java.io.File;
import java.io.IOException;
import java.util.LinkedList; import javax.imageio.ImageIO;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JSplitPane;
import javax.swing.JToolBar;
public class MyShowImage extends JFrame {
//保存当前操作的像素矩阵
private int currentPixArray[]=null;
//图像的路径
private String fileString=null;
//用于显示图像的标签
private JLabel imageLabel=null;
//加载的图像
private BufferedImage newImage;
//图像的高和宽
private int h,w;
//保存历史操作图像矩阵
private LinkedList imageStack=new LinkedList();
private LinkedList tempImageStack=new LinkedList();
JPanel pane;
public MyShowImage(String title){
super(title);
this.setSize(1000,700);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
//创建菜单
JMenuBar jb=new JMenuBar();
JMenu fileMenu=new JMenu("文件");
jb.add(fileMenu);
JMenuItem openImageMenuItem=new JMenuItem("打开图像");
fileMenu.add(openImageMenuItem);
openImageMenuItem.addActionListener(new OpenListener());
JMenuItem exitMenu=new JMenuItem("退出");
fileMenu.add(exitMenu);
exitMenu.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
System.exit(0);
}
});
JMenu operateMenu=new JMenu("图像处理");
jb.add(operateMenu);
JMenuItem RGBtoGrayMenuItem=new JMenuItem("灰度图像转换");
operateMenu.add(RGBtoGrayMenuItem);
RGBtoGrayMenuItem.addActionListener(new RGBtoGrayActionListener());
JMenuItem balanceMenuItem=new JMenuItem("均衡化");
operateMenu.add(balanceMenuItem);
balanceMenuItem.addActionListener(new BalanceActionListener());
JMenu frontAndBackMenu=new JMenu("历史操作");
jb.add(frontAndBackMenu);
JMenuItem backMenuItem=new JMenuItem("后退");
frontAndBackMenu.add(backMenuItem);
backMenuItem.addActionListener(new BackActionListener());
JMenuItem frontMenuItem=new JMenuItem("前进");
frontAndBackMenu.add(frontMenuItem);
frontMenuItem.addActionListener(new FrontActionListener());
this.setJMenuBar(jb);
JPanel jToolBarPan=new JPanel(new FlowLayout());
FlowLayout defaultFlowLayout=(FlowLayout)jToolBarPan.getLayout();
defaultFlowLayout.setAlignment(FlowLayout.LEFT);
JToolBar backAndForwardToolBar=new JToolBar();
jToolBarPan.add(backAndForwardToolBar);
JButton openButton=new JButton("打开",new ImageIcon(getClass().getResource("open.jpg")));
openButton.addActionListener(new OpenListener());
backAndForwardToolBar.add(openButton);
JButton backButton=new JButton("后退",new ImageIcon(getClass().getResource("b.jpg")));
backButton.addActionListener(new BackActionListener());
backAndForwardToolBar.add(backButton);
JButton forwardButton=new JButton("前进",new ImageIcon(getClass().getResource("f.jpg")));
forwardButton.addActionListener(new FrontActionListener());
backAndForwardToolBar.add(forwardButton);
JButton outButton=new JButton("离开",new ImageIcon(getClass().getResource("out.jpg")));
outButton.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
System.exit(0);
}
});
backAndForwardToolBar.add(outButton);
imageLabel=new JLabel("");
JPanel imagePane=new JPanel();
imagePane.add(imageLabel);
JScrollPane imageShowPane = new JScrollPane(imagePane);
HistPanel histPanel=new HistPanel(this);
JPanel p2=new JPanel();
JSplitPane jSplitPane3=new JSplitPane(JSplitPane.VERTICAL_SPLIT,
histPanel,p2);
jSplitPane3.setDividerLocation(250);
jSplitPane3.setOneTouchExpandable(true);
JSplitPane jSplitPane2=new JSplitPane(JSplitPane.HORIZONTAL_SPLIT,
jSplitPane3,imageShowPane);
jSplitPane2.setDividerLocation(280);
jSplitPane2.setOneTouchExpandable(true);
pane=new OperatePane(this);
JSplitPane jSplitPane1=new JSplitPane(JSplitPane.HORIZONTAL_SPLIT,
jSplitPane2,pane);
jSplitPane1.setDividerLocation(850);
jSplitPane1.setOneTouchExpandable(true);
this.add(jSplitPane1,BorderLayout.CENTER);
this.add(jToolBarPan,BorderLayout.NORTH);
this.setVisible(true);
}
private class OpenListener implements ActionListener{
public void actionPerformed(ActionEvent e){
JFileChooser jc=new JFileChooser();
int returnValue=jc.showOpenDialog(null);
if (returnValue == JFileChooser.APPROVE_OPTION) {
File selectedFile = jc.getSelectedFile();
if (selectedFile != null) {
fileString=selectedFile.getAbsolutePath();
try{
newImage =ImageIO.read(new File(fileString));
w=newImage.getWidth();
h=newImage.getHeight();
currentPixArray=getPixArray(newImage,w,h);
imageStack.clear();
tempImageStack.clear();
imageStack.addLast(currentPixArray);
imageLabel.setIcon(new ImageIcon(newImage));
}catch(IOException ex){
System.out.println(ex);
}
}
}
MyShowImage.this.repaint();
//MyShowImage.this.pack();
}
}
//菜单监听器///
private class RGBtoGrayActionListener implements ActionListener{
public void actionPerformed(ActionEvent e){
int[] resultArray=RGBtoGray(currentPixArray);
updateImage(resultArray);
}
}
private class BalanceActionListener implements ActionListener{ public void actionPerformed(ActionEvent e){
int[] resultArray=balance(currentPixArray);
updateImage(resultArray);
}
}
private class BackActionListener implements ActionListener{ public void actionPerformed(ActionEvent e){
if(imageStack.size()<=1){
JOptionPane.showMessageDialog(null,"此幅图片的处理已经没有后退历史操作了","提示",
JOptionPane.INFORMATION_MESSAGE);
}else{
tempImageStack.addLast(imageStack.removeLast());
currentPixArray=imageStack.getLast();
showImage();
}
}
}
private class FrontActionListener implements ActionListener{ public void actionPerformed(ActionEvent e){
if(tempImageStack.size()<1){
JOptionPane.showMessageDialog(null,"此幅图片的处理已经没有前进历史操作了","提示",
JOptionPane.INFORMATION_MESSAGE);
}else{
currentPixArray=tempImageStack.removeFirst();
imageStack.addLast(currentPixArray);
showImage();
}
}
}
//获取图像像素矩阵///
private int[]getPixArray(Image im,int w,int h){
int[] pix=new int[w*h];
PixelGrabber pg=null;
try{
pg = new PixelGrabber(im, 0, 0, w, h, pix, 0, w);
if(pg.grabPixels()!=true)
try{
throw new java.awt.AWTException("pg error"+pg.status());
}catch(Exception eq){
eq.printStackTrace();
}
} catch(Exception ex){
ex.printStackTrace(); }
return pix;
}
public void updateImage(int[] resultArray) {
imageStack.addLast(resultArray);
currentPixArray=resultArray;
showImage();
tempImageStack.clear();
}
//显示图片///
private void showImage(){
Image pic=createImage(new MemoryImageSource(w,h,this.currentPixArray,0,w));
ImageIcon ic=new ImageIcon(pic);
imageLabel.setIcon(ic);
//imageLabel.repaint();
this.repaint();
}
//灰度转换///
private int[] RGBtoGray(int[] ImageSource){
int[]grayArray=new int[h*w];
ColorModel colorModel=ColorModel.getRGBdefault();
int i ,j,k,r,g,b;
for(i = 0; i < h;i++){
for(j = 0;j < w;j++){
k = i*w+j;
r = colorModel.getRed(ImageSource[k]);
g = colorModel.getGreen(ImageSource[k]);
b = colorModel.getBlue(ImageSource[k]);
int gray=(int)(r*0.3+g*0.59+b*0.11);
r=g=b=gray;
grayArray[i*w+j]=(255 << 24) | (r << 16) | (g << 8 )| b;
}
}
return grayArray;
}
/图像均衡化//
private int[] balance(int[] ImageSource){
int[] histogram=new int[256];
int[] dinPixArray=new int[w*h];
for(int i=0;i for(int j=0;j int grey=ImageSource[i*w+j]&0xff;
histogram[grey]++;
}
}
double a=(double)255/(w*h);
double[] c=new double[256];
c[0]=(a*histogram[0]);
for(int i=1;i<256;i++){
c[i]=c[i-1]+(int)(a*histogram[i]);
}
for(int i=0;i for(int j=0;j int grey=ImageSource[i*w+j]&0x0000ff;
int hist=(int)c[grey];
dinPixArray[i*w+j]=255<<24|hist<<16|hist<<8|hist;
}
}
return dinPixArray;
}
public int[] getCurrentPixArray() {
return currentPixArray;
} public void setCurrentPixArray(int[] currentPixArray) {
this.currentPixArray = currentPixArray;
} public int getH() {
return h;
} public int getW() {
return w;
} public static void main(String[] args) {
new MyShowImage("ShowImage");
} } |
