java image effects
Tue Nov 11, 2008 8:15 pm
java image effects
- Code:
import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import javax.swing.*;
import javax.swing.border.TitledBorder;
public class ImageEffectExample extends JFrame {
ShowPanel spanel;
JRadioButton button1, button2, button3, button4;
public ImageEffectExample() {
super("Show Image Effects");
Container container = getContentPane();
spanel = new ShowPanel();
container.add(spanel);
JPanel panel = new JPanel();
panel.setLayout(new GridLayout(2, 2));
panel.setBorder(new TitledBorder("select"));
ButtonGroup group=new ButtonGroup();
button1 = new JRadioButton("Show Image Red");
panel.add(button1);
group.add(button1);
button1.addActionListener(new ButtonListener());
button2 = new JRadioButton("Show Image Green");
panel.add(button2);
group.add(button2);
button2.addActionListener(new ButtonListener());
button3 = new JRadioButton("Show Image Blue");
panel.add(button3);
group.add(button3);
button3.addActionListener(new ButtonListener());
button4 = new JRadioButton("Reset");
panel.add(button4);
group.add(button4);
button4.addActionListener(new ButtonListener());
container.add(BorderLayout.NORTH, panel);
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
setSize(350,200);
setVisible(true);
}
public static void main(String args[]) {
new ImageEffectExample();
}
class ButtonListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
JRadioButton button = (JRadioButton) e.getSource();
if (button.equals(button1)) {
spanel.combine(ShowPanel.RED_MATRIX);
spanel.repaint();
} else if (button.equals(button2)) {
spanel.combine(ShowPanel.GREEN_MATRIX);
spanel.repaint();
} else if (button.equals(button3)) {
spanel.combine(ShowPanel.BLUE_MATRIX);
spanel.repaint();
} else if (button.equals(button4)) {
spanel.reset();
spanel.repaint();
}
}
}
}
class ShowPanel extends JLabel {
static final float RED_MATRIX[][] = { { 2.0f, 0.0f, 0.0f },
{ 0.0f, 0.0f, 0.0f }, { 0.0f, 0.0f, 0.0f } };
static final float GREEN_MATRIX[][] = { { 0.0f, 0.0f, 0.0f },
{ 0.0f, 2.0f, 0.0f }, { 0.0f, 0.0f, 0.0f } };
static final float BLUE_MATRIX[][] = { { 0.0f, 0.0f, 0.0f },
{ 0.0f, 0.0f, 0.0f }, { 0.0f, 0.0f, 2.0f } };
Image image;
BufferedImage bufferedImage1;
BufferedImage bufferedImage2;
Raster raster;
WritableRaster writableRaster;
BufferedImage bufferedImage;
Graphics2D g2d;
ShowPanel() {
loadImage();
setSize(image.getWidth(this), image.getWidth(this));
createImages();
bufferedImage = bufferedImage1;
}
public void loadImage() {
image = Toolkit.getDefaultToolkit().getImage("alert.gif");
MediaTracker mediaTracker = new MediaTracker(this);
mediaTracker.addImage(image, 1);
try {
mediaTracker.waitForAll();
} catch (Exception e) {}
}
public void createImages() {
bufferedImage1 = new BufferedImage(image.getWidth(this), image
.getHeight(this), BufferedImage.TYPE_INT_RGB);
g2d = bufferedImage1.createGraphics();
g2d.drawImage(image, 0, 0, this);
raster = bufferedImage1.getRaster();
bufferedImage2 = new BufferedImage(image.getWidth(this), image
.getHeight(this), BufferedImage.TYPE_INT_RGB);
writableRaster = (WritableRaster) bufferedImage2.getRaster();
}
public void combine(float[][] combineMatrix) {
BandCombineOp band = new BandCombineOp(combineMatrix, null);
band.filter(raster, writableRaster);
bufferedImage = bufferedImage2;
}
public void reset() {
g2d.setColor(Color.black);
g2d.clearRect(0, 0, bufferedImage.getWidth(this), bufferedImage.
getHeight(this));
g2d.drawImage(image, 0, 0, this);
bufferedImage = bufferedImage1;
}
public void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2D = (Graphics2D) g;
g2D.drawImage(bufferedImage, 0, 0, this);
}
}
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