let w = 640;

let h = 480;

​

function setup() {

  createCanvas(640, 480);

  capture = createCapture(VIDEO);

  capture.size(640, 480);

  capture.hide();

}

​

function draw() {

  let factor = w / h ;

  background(50);

  image(capture, 0,0,width,h * (width/w));

  filter (THRESHOLD)

}

function mousePressed() {

    let fs = fullscreen();

    fullscreen(!fs);

}

​

function windowResized() {

  resizeCanvas(windowWidth, windowHeight);

}