let scale = 0.1;

​

function setup() {

  createCanvas(640, 480);

  video = createCapture(VIDEO);

  video.size(width * scale, height * scale);

}

​

function draw() {

  background(220);

  video.loadPixels();

  noStroke();

​

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

    for (let x = 0; x < video.width; x++) {

      let index = (x + y * video.width) * 4;

      let r = video.pixels[index + 0];

      let g = video.pixels[index + 1];

      let b = video.pixels[index + 2];

      fill(r, g, b);

      let squareSize = width / video.width;

      square(x * squareSize, y * squareSize, squareSize);

    }

  }

}

​