docstr: Tests the estimate_image_entropy method.
docstr_tok: ["Tests","the","estimate_image_entropy","method","."]
code: def test_entropy_estimate(self):
      """Tests the estimate_image_entropy method."""
      previous_entropy = 0
      for fraction in [0, 0.01, 0.02, 0.1, 1.0]:
          mask = pic.generate_random_mask(
              image_height=self.img.shape[0],
              image_width=self.img.shape[1],
              fraction=fraction,
          )
          blurred_img = pic.create_blurred_image(
              full_img=self.img, pixel_mask=mask
          )
          entropy = pic.estimate_image_entropy(blurred_img)
          self.assertGreater(entropy, previous_entropy)
          previous_entropy = entropy
  
file_path: saliency/saliency/metrics/pic_test.py
imports: import numpy
  import os
  import unittest
  from .None import pic
  from pathlib import Path
  from PIL import Image
label_desc: Use image node_id 6 for calling the PicTest obj's underlying member method code with example usage: obj.test_entropy_estimate() without return types