CODEWITHSUNDEEP
javaimageimage-processing
Aurelian Cotuna
Aurelian Cotuna

Reputation: 3081

Skelethonization and Thinning in java

I have a problem and I can't figure it out. I have to use two different image processing techniques: Skelethonization and Thinning , and I have to do this in java. Now the problem is that I can't find out any starting point or tutorial on this. Can anybody tell me where should I start, or can somebody explain me how can I achieve that? I'm writing the application in Java, and I want to use a BufferedImage, if it is possible (of course).

Thanks

Upvotes: 0

Views: 1691

Answers (1)

Nate
Nate

Reputation: 557

You can draw to the BufferedImage like this:

public BufferedImage createSkelethonizationImage() {
   BufferedImage image = new BufferedImage(width, height);
   Graphics2D g2 = image.createGraphics();

   // Perform your drawing here
   g2.drawLine(...);

   g2.dispose();
   return image;
}

To draw the image, create a new class that extends JComponent and overrides the paint method. Here is some code to get started:

public class MyImage extends JComponent {
   // Note: the image should be modified on the Event Dispatch Thread
   private BufferedImage image = createSkelethonizationImage();

   @Override
   public void paint(Graphics g) {
      g.drawImage(image, 0, 0, this);
   }
}

Edit - Complete solution:

public class Test {

    public static void main(String[] args) {
       // Width and height of your image
       final int width = 200;
       final int height = 200;

       SwingUtilities.invokeLater(new Runnable() {

          @Override
          public void run() {
             JFrame frame = new JFrame();
             MyImage image = new MyImage(width, height);
             frame.add(image);
             frame.setSize(new Dimension(width, height));
             frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
             frame.setVisible(true);            
          }
       });
    }
}

class MyImage extends JComponent {

    // Note: image should be modified on the Event Dispatch Thread only
    private final BufferedImage image;

    public MyImage(int width, int height) {
       image = createSkelethonizationImage(width, height);
       setPreferredSize(new Dimension(width, height));
    }

    public BufferedImage createSkelethonizationImage(int width, int height) {
       BufferedImage iamge = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
       Graphics2D g2 = iamge.createGraphics();

       // Perform your drawing here
       g2.setColor(Color.BLACK);
       g2.drawLine(0, 0, 200, 200);

       g2.dispose();
       return iamge;
    }

    @Override
    public void paint(Graphics g) {
       g.drawImage(image, 0, 0, this);
    }
}

Upvotes: 5

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