scikit-learn
diff --git a/‎sklearn/feature_extraction/image.py
Copy file name to clipboardExpand all lines: sklearn/feature_extraction/image.py
+2-1Lines changed: 2 additions & 1 deletion b/‎sklearn/feature_extraction/image.py
Copy file name to clipboardExpand all lines: sklearn/feature_extraction/image.py
+2-1Lines changed: 2 additions & 1 deletion
@@ -371,7 +371,8 @@ def extract_patches_2d(image, patch_size, *, max_patches=None, random_state=None
     max_patches : int or float, default=None
         The maximum number of patches to extract. If `max_patches` is a float
         between 0 and 1, it is taken to be a proportion of the total number
-        of patches.
+        of patches. If `max_patches` is None it corresponds to the total number
+        of patches that can be extracted.
 
     random_state : int, RandomState instance, default=None
         Determines the random number generator used for random sampling when