My Portrait

let img;
let thin, thick;

function preload() {
  img = loadImage('https://i.imgur.com/l7MihtV.jpg');
}

function setup() {
  createCanvas(536, 600);
  thin = 5;
  thick = 45;
  imageMode(CENTER);
  noStroke();
  background(255);
  img.loadPixels();
}

function draw() {
  //Maps mouseX and mouseY to 5 and 45 to scale both dimensions of the rectangle
  let sizeX = map(mouseX, 0, width, thin, thick);
  let sizeY = map(mouseY, 0, height, thin, thick)
  //Picks random points from the image and stores them in x and y
  let x = floor(random(img.width));
  let y = floor(random(img.height));
  //Gets the exact pixel
  let pixel = img.get(x, y);
  //Draws rectangle according to randomly chosen position
  //and cursor position
  fill(pixel, 128);
  rect(x, y, sizeX, sizeY);
}