Complete this program with a sharpen function that sharpens the edge of an image while keeping its original colors: from images import Image def main(): filename = input("Enter the image file name: ") image = Image(filename) newimage = sharpen(image, 20, 15) newimage.draw() if __name__ == "__main__": main()

def sharpen(image, max_x, max_y):
    newimage = Image(image.getWidth(), image.getHeight())
    for y in range(image.getHeight()):
        for x in range(image.getWidth()):
            r, g, b = image.getPixel(x, y)
            if x > max_x and x < (image.getWidth() - max_x) and y > max_y and y < (image.getHeight() - max_y):
                newimage.setPixel(x, y, r, g, b)
            else:
                r = 255
                g = 255
                b = 255
                newimage.setPixel(x, y, r, g, b)
    return newimage