// Example 06-03 from "Getting Started with Processing" 
// by Reas & Fry. O'Reilly / Make 2010

PImage img;

void setup() {
  size(480, 120);
  img = loadImage("lunar.jpg");
}

void draw() {
  background(0);
  image(img, 0, 0, mouseX * 2, mouseY * 2);
}