ANTIALIAS
was removed in Pillow 10.0.0 (after being deprecated through many previous versions). Now you need to use PIL.Image.LANCZOS
or PIL.Image.Resampling.LANCZOS
.
(This is the exact same algorithm that ANTIALIAS
referred to, you just can no longer access it through the name ANTIALIAS
.)
Reference: Pillow 10.0.0 release notes (with table of removed constants)
Simple code example:
import PIL
import numpy as np
# Gradient image with a sharp color boundary across the diagonal
large_arr = np.fromfunction(lambda x, y, z: (x+y)//(z+1),
(256, 256, 3)).astype(np.uint8)
large_img = PIL.Image.fromarray(large_arr)
# Resize it: PIL.Image.LANCZOS also works here
small_img = large_img.resize((128, 128), PIL.Image.Resampling.LANCZOS)
print(small_img.size)
large_img.show()
small_img.show()