Fancy Diagonals
---------------
image = new SimpleImage("x.png");
image.setZoom(20);

for (pixel : image) {
  if (pixel.getX() + pixel.getY() == image.getHeight() - 1) {
    pixel.setRGB(255, 0, 255);
  }

}

print(image);

Make a border
-------------
image = new SimpleImage("x.png");
image.setZoom(20);

for (pixel : image) {
  if(image.countNeighbors(pixel) < 9) {
    pixel.setRGB(0, 255, 0);
  }
}

print(image);

Fancier Diagonals
-----------------
image = new SimpleImage("x.png");
image.setZoom(20);

for (pixel : image) {
  if (pixel.getX() + pixel.getY() == image.getHeight() - 1) {
    pixel.setRGB(255, 0, 255);
  } else {
    pixel.setRGB(0, 255, 0);
  }

}

print(image);

Combining Conditionals
----------------------
image = new SimpleImage("x.png");
image.setZoom(20);

for (pixel : image) {
  if(pixel.getX() + pixel.getY() == image.getHeight() - 1 ||
     image.countNeighbors(pixel) < 9) {
    pixel.setRGB(0, 255, 0);
  }
}

print(image);


Green Screen
------------
image = new SimpleImage("yosemite.jpg");
image.setZoom(0.5);
print(image);
back = new SimpleImage("paris.jpg");
back.setSameSize(image);
back.setZoom(0.5);

for (pixel : image) {
  if (pixel.isSimilarTo(0, 100, 255, 125)) {
    backPixel = back.getPixel(pixel.getX(), pixel.getY());
    pixel.setRGB(backPixel.getRed(), backPixel.getGreen(), backPixel.getBlue());
  }
}

print(image);