let data;

​

function setup() {

  createCanvas(640, 480);

  cam = createCapture(VIDEO);

  cam.size(400,400);

}

​

function draw() {

  background(220);

  loadPixels();

  image(cam,0,0,width,height);

  if(data & data == pixels) {

    print("MATCH!");

  }

  //updatePixels();

}

​

function keyPressed() {

  cam.loadPixels();

  data = cam.pixels;

​

}