​

function preload(){

 img = loadImage('assets/test_image.jpg');

}

​

​

function setup() {

  createCanvas(800, 800);

  noLoop();

}

​

function draw() {

  background(0);

  // image(img, 0, 0, width, height);

  for(let y = 0; y < height; y += 20){

    let stripYPos = int(random(0, img.height-20));

    let strip = img.get(0, stripYPos, img.width, 20);

    image(strip, 0, y, width, height);

  }

}