5. ImageEnhance Sharpness

See: https://pillow.readthedocs.io/en/stable/reference/ImageEnhance.html#PIL.ImageEnhance.Sharpness

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5.1. Sharpness

Use the ``ImageEnhance.Sharpness(image).enhance(factor)``method to adjust the sharpness of an image.

ImageEnhance.Sharpness(image).enhance(factor)

return an enhanced image.

factor is a floating point value controlling the enhancement. There are no restrictions on this value.

Factor 1.0 always returns a copy of the original image.

lower factors mean less sharpness, and higher values more.

The code below creates several images of various sharpness enhancement factors.

from PIL import Image, ImageEnhance


with Image.open("test_images/alph_blocks.png") as im:
    new_im = ImageEnhance.Sharpness(im).enhance(0)
    new_im.save("enhanced/sharpness0.png")
    new_im = ImageEnhance.Sharpness(im).enhance(0.5)
    new_im.save("enhanced/sharpness0_5.png")
    new_im = ImageEnhance.Sharpness(im).enhance(1)
    new_im.save("enhanced/sharpness1.png")
    new_im = ImageEnhance.Sharpness(im).enhance(2)
    new_im.save("enhanced/sharpness2.png")
    new_im = ImageEnhance.Sharpness(im).enhance(10)
    new_im.save("enhanced/sharpness10.png")