Changing Colors
---------------
img = new SimpleImage("x.png");
img.setZoom(20);
for (pixel : img) {
    pixel.setRed(255);
    pixel.setGreen(0);
    pixel.setBlue(0);
}
print(img);


Relative Colors
---------------
img = new SimpleImage("flowers.jpg");
img.setZoom(0.5);
for (pixel : img) {
    pixel.setGreen(pixel.getGreen() * 0.5);
}
print(img);


A Puzzle
--------
img = new SimpleImage("51020-banana.png");
img.setZoom(0.5);
for (pixel : img) {
    pixel.setRed(pixel.getRed() * 20);
    pixel.setGreen(pixel.getGreen() * 5);
    pixel.setBlue(pixel.getBlue() * 10);

}
print(img);


Another Mystery
---------------
image = new SimpleImage("puzzle-gold.png");
image.setZoom(0.5);
for (pixel: image) {
  pixel.setRed(pixel.getRed() * 10);
  pixel.setGreen(0);
  pixel.setBlue(0);

}

print(image);



Grayscale
---------
image = new SimpleImage("flowers.jpg");
image.setZoom(0.5);
for (pixel: image) {
    brightness = (pixel.getRed() + pixel.getGreen() + pixel.getBlue()) / 3;
    pixel.setRGB(brightness, brightness, brightness);

}

print(image);


Blur Filter
-----------
img = new SimpleImage("x.png");
result = new SimpleImage("flowers.jpg");
result.setAsBig(img);
result.setZoom(20);

for (pixel : img) {
   red = 0;
   green = 0;
   blue = 0;
   
   for (neighbor : img.getNeighbors(pixel)) {
       red = red + neighbor.getRed();
       blue = blue + neighbor.getBlue();
       green = green + neighbor.getGreen();
   }    
   count = img.countNeighbors(pixel);
   resultPixel = result.getPixel(pixel.getX(), pixel.getY());
   resultPixel.setRGB(red / count, green / count, blue / count);

}

print(result);