code: def _subtract_local_average(image, target_radius_size):
      cv2 = tfds.core.lazy_imports.cv2
      image_blurred = cv2.GaussianBlur(
          image, (0, 0), target_radius_size / 30
      )
      image = cv2.addWeighted(image, 4, image_blurred, -4, 128)
      return image
  
imports: import csv
  import io
  import os
  from absl import logging
  from etils import epath
  import numpy
  from tensorflow_datasets.core.utils.lazy_imports_utils import tensorflow
  import tensorflow_datasets.public_api
label_desc: Use image node_id 4 for calling a global function with example usage: _subtract_local_average(image, target_radius_size) and returns: image