Question

I'm trying to make a grayscale image. The values that I want to set Red, Green, and Blue are 27. But when I set it them all to 27 manually. It just turns out to become an entirely grey image, but how come this code works?

image = new SimpleImage("liberty-red.jpg");
for (pixel: image) {
pixel.setGreen(pixel.getRed());
pixel.setBlue(pixel.getRed());
}
print(image);