public void modifyPicture()
{
Pixel pixel=null;
Pixel[ ] pixels=this.getPixels();
for(int x=0; x<this.getPixels().length/2; x++ )
{
pixel= pixels [x];
int r =pixel.getRed()/2
int g=pixel.getGreen()/2;
int b=pixel.getBlue()/2;
pixel.setColor(new Color(r,g,b) ) )
}
}