Stippling, Voronois and TSPs

const total = 10000;

var points = [];

var img;

​

function preload() {

  img = loadImage('profile.jpg')

}

​

function setup() {

  createCanvas(img.width, img.height);

  background(0);

  stroke(255);

  while(points.length < total){

    var x = random(img.width);

    var y = random(img.height);

    if(random(255) < brightness(img.get(round(x), round(y)))){

      points.push({x,y});

    }

  }

  noLoop();

}

​

function draw() {

  points.forEach(p => point(p.x, p.y));

}