let cat;

​

function preload(){

  cat = loadImage('cat.jpg')

}

​

function setup() {

  createCanvas(cat.width, cat.height);

  pixelDensity(1);

  myImage = createImage(width,height)

}

​

function draw() {

  cat.loadPixels();

  myImage.loadPixels();

  line()

  for (let i = (480*4); i < myImage.pixels.length; i ++) {

    myImage.pixels[i] = cat.pixels[i];

    //myImage.pixels[i] = cat.pixels[i];

    // myImage.pixels[i + 1] = 0;

    // myImage.pixels[i + 2] = 0;

    // myImage.pixels[i + 3] = 255;

  }

  myImage.updatePixels();

  image(myImage,0,0)

}

​