Source Code : Use PixelGrabber class to acquire pixel data from an Image object

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Use PixelGrabber class to acquire pixel data from an Image object

       

import java.awt.Image;
import java.awt.Toolkit;
import java.awt.image.PixelGrabber;

public class Main {
  static boolean isGreyscaleImage(PixelGrabber pg) {
    return pg.getPixels() instanceof byte[];
  }

  public static void main(String args[]) throws Exception {
    Image image = Toolkit.getDefaultToolkit().getImage("inFile.png");

    PixelGrabber grabber = new PixelGrabber(image, 0, 0, -1, -1, false);

    if (grabber.grabPixels()) {
      int width = grabber.getWidth();
      int height = grabber.getHeight();
      if (isGreyscaleImage(grabber)) {
        byte[] data = (byte[]) grabber.getPixels();
      } else {
        int[] data = (int[]) grabber.getPixels();
      }
    }
  }
}

   
    
    
    
    
    
    
  

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