const hw = 400;

​

function preload() {

  img = loadImage('https://i.ibb.co/LdnQNgY/Cat.png')

}

function setup() {

  createCanvas(hw*2, hw);

}

​

function draw() {

  background(200, 100, 255)

  const s = map(sin(millis() * 0.001), -1, 1, 1, 5);

  // right side

  push()

  translate(hw, 0)

  translate(hw/2, hw/2)

  scale(s, s)

  translate(-mouseX, -mouseY)

  image(img, 0, 0, hw, hw)

  pop()

  // left side

  fill(255, 100, 100)

  noStroke()

  rect(0, 0, hw, hw)

  image(img, 0, 0, hw, hw)

  push()

  stroke(0)

  noFill()

  translate(mouseX, mouseY)

  scale(1/s, 1/s)

  translate(-hw/2, -hw/2)

  rect(0, 0, hw, hw)

  pop()

​

}