public void setPixel(int x, int y, short red, short green, short blue) {
		// Your solution here.
		assert (x < height && y < width);
		assert (0 <= red && red <= 255);
		assert (0 <= blue && blue <= 255);
		assert (0 <= green && green <= 255);

		pixel[y][x].red = red;
		pixel[y][x].blue = blue;
		pixel[y][x].green = green;

	}