let catImg;

function preload() {

  catImg = loadImage("https://placekitten.com/400/400");

}

​

function setup() {

  createCanvas(400, 400);

  background(255);

  image(catImg, 0, 0);

​

  // to crop a segment of the image using coordinates

  let newImg = catImg.get( 50,60, 100,100);

  image (newImg, 20, 80);

}