Emoji Selena Gomez - OpenProcessing

mySketch
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var img;
var emoji_0, emoji_64, emoji_128, emoji_192;
​
function preload() {
  img = loadImage("se.jpg");
  emoji_192 = loadImage("Tierreihe4.png");
  emoji_128 = loadImage("Tierreihe3.png");
  emoji_64 = loadImage("Tierreihe2.png");
  emoji_0 = loadImage("Tierreihe1.png");
}
​
function setup() { 
  createCanvas(600, 800); // Portrait size
  noLoop();
}
​
function draw() {
  //image(img, 0, 0);
  background(0);
  
  img.loadPixels();
  
  var grid = 20;
  var diameter = 18;
  
  for (var y=0; y<img.height; y+=grid)
  {
    for (var x=0; x<img.width; x+=grid)
    {
      var pix = red(img.get(x, y));
      
      if (pix <= 64) // dunkel 0-64
      {
        image(emoji_0, x, y, diameter, diameter);
      }
      else if (pix > 64 && pix <= 128) // dunkler 64-128
      {
        image(emoji_64, x, y, diameter, diameter);
      }
      else if (pix > 128 && pix <= 192) // heller
      {
        image(emoji_128, x, y, diameter, diameter);
      }
      else if (pix >192 && pix <= 255) // hell
      {
        image(emoji_192, x, y, diameter, diameter);
      }
    }
  }
}