5. ImageFilter Sharpen

See: https://pillow.readthedocs.io/en/stable/reference/ImageFilter.html#filters

5.1. Sharpen

Use the Image.filter(ImageFilter.SHARPEN) method to sharpen an image.

from PIL import Image, ImageFilter

with Image.open("test_images/alph_blocks.png") as im:
    new_im = im.filter(ImageFilter.SHARPEN)
    new_im.save("filters/sharpen.png")