Images & Emoji

var img;

var emoji_bright, emoji_dark;

​

function preload() {

  img = loadImage("nasa_buzz.jpg");

  emoji_bright = loadImage("Twemoji_1f611.png");

  emoji_dark = loadImage("Twemoji_1f621.png");

}

​

function setup() { 

  createCanvas(512, 512);

  noLoop();

}

​

function draw() {

  //image(img, 0, 0);

  img.loadPixels();

  for (var y=0; y<img.height; y+=10)

  {

    for (var x=0; x<img.width; x+=10)

    {

      var pix = red(img.get(x, y));

      if (pix <= 128)

      {

        image(emoji_dark, x, y, 10, 10);

      }

      else

      {

        image(emoji_bright, x, y, 10, 10);

      }

    }

  }

}