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let cam;
function setup() {
createCanvas(400, 400);
pixelDensity(1);
cam = createCapture(VIDEO);
cam.hide();
noStroke();
}
function draw() {
background(220);
image(cam,0,0);
cam.loadPixels();
for(let x = 0; x < cam.width; x+=10){
for(let y = 0; y < cam.height; y+= 10){
let colorFromVideo = cam.get(x,y);
let b = brightness(colorFromVideo);
if(b > 50){
fill('white');
}else{
fill('black');
}
rect(x, y, 10, 10);
}
}
}