fix: add missing cv2 import for SIMPLE_RADIAL undistortion

[andrewwhitecdw]

Problem

fix: add missing cv2 import for SIMPLE_RADIAL undistortion

Fix

Replace:

from PIL import Image
from typing import NamedTuple

with:

from PIL import Image
import cv2
from typing import NamedTuple

Files changed

• scene/dataset_readers.py