var x, y;

​

function preload() {

  img = loadImage('tree.jpg');

}

​

function setup() {

  createCanvas(400, 400);

  background(0);

  noStroke();

}

​

function draw() {

  x = random(width);

  y = random(height);

  var c = img.get(x, y);

  print(c);

  fill(c[0], c[1], c[2], 50);

  ellipse(x, y, 30, 30);

}

​

​

​

​

​

​