Compare images Python PIL

问题

How can I compare two images? I found Python's PIL library, but I do not really understand how it works.

回答1:

To check does jpg files are exactly the same use pillow library:

from PIL import Image
from PIL import ImageChops

image_one = Image.open(path_one)
image_two = Image.open(path_two)

diff = ImageChops.difference(image_one, image_two)

if diff.getbbox():
    print("images are different")
else:
    print("images are the same")

回答2:

based on Victor Ilyenko's answer, I needed to convert the images to RGB as PIL fails silently when the .png you're trying to compare contains a alpha channel.

image_one = Image.open(path_one).convert('RGB')
image_two = Image.open(path_two).convert('RGB')

来源：https://stackoverflow.com/questions/35176639/compare-images-python-pil