addEffects

PImage img;

void setup() {
  img = loadImage("http://media-cache-ak0.pinimg.com/736x/2c/f6/a5/2cf6a58f75b368949cf98db03b925f1b.jpg");
  size(img.width, img.height);
  image(img, 0, 0, width, height);
}

void draw() {
}

void mouseReleased() {
  int num = (int) random(10, 50);
  for (int i=-num/2; i<1+num/2; i++) {
    float x = mouseX-i;
    float y = mouseY;
    color col = img.get(int(x), int(y));
    stroke(col, 150);
    line(x, y, x, y+int(random(100, 200)));
  }
}

void keyPressed() {
  save(random(34344)+".jpg");
}