9. ImageChops duplicate

See: https://pillow.readthedocs.io/en/stable/reference/ImageChops.html#PIL.ImageChops.duplicate

See: Image.copy()

9.1. Duplicate

Alias for Image.copy().
Use the ImageChops.duplicate(image) method to copy an image.
The code below first duplciates an image so a copy can be converted to greyscale.

from PIL import Image, ImageChops


def get_greyscale(img):
    imgd = ImageChops.duplicate(img)
    return imgd.convert('L')

with Image.open("test_images/crosses.png") as im1:
    im1g = get_greyscale(im1)
    im1g.save("chops/duplicate.png")