'Returns a nested python sequence.'

def unwrap(self):

    red = [(self.red[i] / 65535.0) for i in range(self.size)]
    green = [(self.green[i] / 65535.0) for i in range(self.size)]
    blue = [(self.blue[i] / 65535.0) for i in range(self.size)]
    return (red, green, blue)
