This sketch is created with an older version of Processing,
and doesn't work on browsers anymore.
xxxxxxxxxx
PImage b;
void setup()
{
size (620, 456);
smooth ();
b = loadImage("monalisa.png");
background(b);
}
void draw () {
scale (3);
fill (255);
ellipse (83.5,66, 11,6);
ellipse (116,65, 11,6);
fill (11,90,5);
ellipse (map(mouseX,0,width,81.25, 86.25), map(mouseY,0,width,65.5,67.5), 3,2);
ellipse (map(mouseX,0,width,113.75,118.75), map(mouseY,0,width,64.5,66.5), 3,2);
}