import java.awt.image.*;
import java.awt.geom.*;
import java.awt.*;
import java.applet.*;
public class Pildivarvimuutus1 extends Applet{
  BufferedImage pilt1=new BufferedImage(100, 100, BufferedImage.TYPE_INT_RGB);
  BufferedImage pilt2=new BufferedImage(100, 100, BufferedImage.TYPE_INT_RGB);
  public Pildivarvimuutus1(){
   Graphics g=pilt1.createGraphics();
   g.setColor(Color.green);
   g.fillOval(10, 10, 80, 80);
   float andmed[][]=new float[][]{
     {1,  0,   0},  
     {0,  1,   0}, // uus roheline = 0*vana punane+1* vana roheline + 0*vana sinine
     {0,  0,   1}
   };
   BandCombineOp bco=new BandCombineOp(
      andmed, null
   );
   bco.filter(pilt1.getData(), pilt2.getRaster());
  }
  public void paint(Graphics g){
    g.drawImage(pilt1, 25, 50, this);
    g.drawImage(pilt2, 175, 50, this);
  }
  
  public static void main(String argumendid[]){
    Frame f=new Frame("Pildi värvide muutmine");
    f.add(new Pildivarvimuutus1());
    f.setSize(300, 200);
    f.setVisible(true);
  }
}