A Java Advanced Imaging program

王朝java/jsp·作者佚名  2008-05-31
窄屏简体版  字體: |||超大  

// This program has two parts , it can invert a image, and compare with the original one in a frame.You need download and install Java Advanced Imaging before you use it!!!

// compile:

javac "###1&2.java"

//run:

java "###2" "image file name.jpg" <return>

// now, here is the code:

//part one:

import java.awt.GridLayout;

import java.awt.event.AdjustmentEvent;

import java.awt.event.AdjustmentListener;

import java.awt.image.RenderedImage;

import javax.media.jai.PlanarImage;

import javax.swing.JPanel;

import javax.swing.JScrollPane;

/**

* This class represents a Panel which contains two instances of

* DisplayJAIWithPixelInfo.

* The scrolling bars of both images are synchronized so scrolling one image

* will automatically scroll the other.

*/

public class DisplayTwoSynchronizedImages extends JPanel

implements AdjustmentListener

{

/** The DisplayJAIWithPixelInfo for the first image. */

protected DisplayJAIWithPixelInfo dj1;

/** The DisplayJAIWithPixelInfo for the second image. */

protected DisplayJAIWithPixelInfo dj2;

/** The JScrollPane which will contain the first of the images */

protected JScrollPane jsp1;

/** The JScrollPane which will contain the second of the images */

protected JScrollPane jsp2;

/**

* ConstrUCts an instance of this class, setting the components? layout,

* creating two instances of DisplayJAI for the two images and creating/

* registering event handlers for the scroll bars.

* @param im1 the first image (left side)

* @param im2 the second image (right side)

*/

public DisplayTwoSynchronizedImages(PlanarImage im1,PlanarImage im2)

{

super();

setLayout(new GridLayout(1,2));

dj1 = new DisplayJAIWithPixelInfo(im1); // Instances of DisplayJAI for the

dj2 = new DisplayJAIWithPixelInfo(im2); // two images

jsp1 = new JScrollPane(dj1); // JScrollPanes for the both

jsp2 = new JScrollPane(dj2); // instances of DisplayJAI

add(jsp1);

add(jsp2);

// Retrieve the scroll bars of the images and registers adjustment

// listeners to them.

// Horizontal scroll bar of the first image.

jsp1.getHorizontalScrollBar().addAdjustmentListener(this);

// Vertical scroll bar of the first image.

jsp1.getVerticalScrollBar().addAdjustmentListener(this);

// Horizontal scroll bar of the second image.

jsp2.getHorizontalScrollBar().addAdjustmentListener(this);

// Vertical scroll bar of the second image.

jsp2.getVerticalScrollBar().addAdjustmentListener(this);

}

/**

* This method changes the first image to be displayed.

* @param newImage the new first image.

*/

public void setImage1(PlanarImage newimage)

{

dj1.set(newimage);

repaint();

}

/**

* This method changes the second image to be displayed.

* @param newImage the new second image.

*/

public void setImage2(PlanarImage newimage)

{

dj2.set(newimage);

repaint();

}

/**

* This method returns the first image.

* @return the first image.

*/

public RenderedImage getImage1()

{

return dj1.getSource();

}

/**

* This method returns the second image.

* @return the second image.

*/

public RenderedImage getImage2()

{

return dj2.getSource();

}

/**

* This method returns the first DisplayJAI component.

* @return the first DisplayJAI component.

*/

public DisplayJAIWithPixelInfo getDisplayJAIComponent1()

{

return dj1;

}

/**

* This method returns the second DisplayJAI component.

* @return the second DisplayJAI component.

*/

public DisplayJAIWithPixelInfo getDisplayJAIComponent2()

{

return dj2;

}

/**

* This method will be called when any of the scroll bars of the instances of

* DisplayJAI are changed. The method will adjust the scroll bar of the other

* DisplayJAI as needed.

* @param e the AdjustmentEvent that ocurred (meaning that one of the scroll

* bars position has changed.

*/

public void adjustmentValueChanged(AdjustmentEvent e)

{

// If the horizontal bar of the first image was changed...

if (e.getSource() == jsp1.getHorizontalScrollBar())

{

// We change the position of the horizontal bar of the second image.

jsp2.getHorizontalScrollBar().setValue(e.getValue());

}

// If the vertical bar of the first image was changed...

if (e.getSource() == jsp1.getVerticalScrollBar())

{

// We change the position of the vertical bar of the second image.

jsp2.getVerticalScrollBar().setValue(e.getValue());

}

// If the horizontal bar of the second image was changed...

if (e.getSource() == jsp2.getHorizontalScrollBar())

{

// We change the position of the horizontal bar of the first image.

jsp1.getHorizontalScrollBar().setValue(e.getValue());

}

// If the vertical bar of the second image was changed...

if (e.getSource() == jsp2.getVerticalScrollBar())

{

// We change the position of the vertical bar of the first image.

jsp1.getVerticalScrollBar().setValue(e.getValue());

}

}

}

//Ok, now is the main function , part two:

import javax.media.jai.JAI;

import javax.media.jai.PlanarImage;

import javax.swing.JFrame;

/**

* This class demonstrates the use of the invert operator.

*/

public class Invert

{

/**

* The application entry point.

* @param args the command line arguments.

*/

public static void main(String[] args)

{

// We need one argument: the image filename.

if (args.length != 1)

{

System.err.println("Usage: java operators.Invert image");

System.exit(0);

}

// Read the image.

PlanarImage input = JAI.create("fileload", args[0]);

// Invert the image.

PlanarImage output = JAI.create("invert", input);

// Create a JFrame for displaying the results.

JFrame frame = new JFrame();

frame.setTitle("Invert image "+args[0]);

// Add to the JFrame?s ContentPane an instance of DisplayTwoSynchronized-

// Images, which will contain the original and processed image.

frame.getContentPane().add(new DisplayTwoSynchronizedImages(input,output));

// Set the closing operation so the application is finished.

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

frame.pack(); // adjust the frame size using preferred dimensions.

frame.setVisible(true); // show the frame.

}

}

 
 
 
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