import java.awt.Color;
import java.awt.Component;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;



public class Kep extends Component {

  public static void main(String[] foo) {
      new Kep();
  }


  private void marchThroughImage(BufferedImage image) throws IOException {
    int w = image.getWidth();
    int h = image.getHeight();
    BufferedImage img = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB);
    System.out.println("width, height: " + w + ", " + h);

    for (int i = 0; i < h; i++) {
      for (int j = 0; j < w; j++) {

        Color mycolor = new Color(image.getRGB(i, j));
        int red = mycolor.getRed();
        int green = mycolor.getGreen();
        int blue = mycolor.getBlue();
        int alpha = mycolor.getAlpha();

        int col = (alpha << 24) | (red << 16) | (green << 8) | blue;
        img.setRGB(i, j, col);

      }
    }

          File f = new File("MyFile.png");
        ImageIO.write(img, "PNG", f);
  }



  public Kep() {
    try {
      BufferedImage image =
        ImageIO.read(this.getClass().getResource("asd.png"));
      marchThroughImage(image);
    } catch (IOException e) {
      System.err.println(e.getMessage());
    }
  }

}