diff --git a/ants/ops/denoise_image.py b/ants/ops/denoise_image.py
index 0bb0827b..9a2da6b6 100644
--- a/ants/ops/denoise_image.py
+++ b/ants/ops/denoise_image.py
@@ -5,7 +5,7 @@
 from ants.internal import get_lib_fn, process_arguments
 
 @image_method
-def denoise_image(image, mask=None, shrink_factor=1, p=1, r=3, noise_model="Rician", v=0):
+def denoise_image(image, mask=None, shrink_factor=1, p=1, r=2, noise_model="Rician", v=0):
     """
     Denoise an image using a spatially adaptive filter originally described in
     J. V. Manjon, P. Coupe, Luis Marti-Bonmati, D. L. Collins, and M. Robles.