diff --git a/datasets/raise/utils.py b/datasets/raise/utils.py
index a116edb..d2586c7 100644
--- a/datasets/raise/utils.py
+++ b/datasets/raise/utils.py
@@ -26,10 +26,10 @@ def denoise(imageNpArray, denoiserName):
             imageDenoisedNpArray = skImageRestorationDenoise(imageNpArray, weight=0.2)
     return imageDenoisedNpArray
 
-class iterativeMean():
+class iterativeMean:
     mean = 0
     numberOfElementsInMean = 0
 
-    def addElement(self, element):
+    def add(self, element):
         self.mean = ((self.mean * self.numberOfElementsInMean) + element) / (self.numberOfElementsInMean + 1)
         self.numberOfElementsInMean += 1
\ No newline at end of file