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# PIL
from PIL import Image, ImageFilter
image = Image.open("lena.png")
# Common Kernel for image sharpening
kernel = np.array([[-1,-1,-1],
[-1, 9,-1],
[-1,-1,-1]])
kernel = ImageFilter.Kernel((3,3), kernel.flatten())
# Applys the sharpening filter using kernel on the original image without noise
sharpened = image.filter(kernel)