LockScreenCollector.py

import os
import shutil
from PIL import Image

assetpath = "C:\\Users\\kaste\\AppData\\Local\\Packages\\Microsoft.Windows.ContentDeliveryManager_cw5n1h2txyewy\\LocalState\\Assets\\"
_, _, assets = next(os.walk(assetpath), (None, None, []))

jpegpath = "D:\\LockScreen\\Images\\"
_, _, jpegs = next(os.walk(jpegpath), (None, None, []))

jpegs = list(map(lambda jpg: jpg[:-4], jpegs))

assets = list(filter(lambda asset: asset not in jpegs, assets))
assets = list(filter(lambda asset: os.stat(assetpath + asset).st_size > 200 * 1024, assets))
assets = list(filter(lambda asset: Image.open(assetpath + asset).size[0] >= 1600, assets))

for asset in assets:
    shutil.copyfile(assetpath + asset, jpegpath + asset + ".jpg")
    print("Copying " + assetpath + asset + " to " + jpegpath + asset + ".jpg")

os.system('pause')