diff --git a/mainscripts/Sorter.py b/mainscripts/Sorter.py
index edd18b9..eac7980 100644
--- a/mainscripts/Sorter.py
+++ b/mainscripts/Sorter.py
@@ -21,17 +21,8 @@ def estimate_sharpness(image):
     
     if image.ndim == 3:
         image = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)
-
-    sharpness = 0
-    for y in range(height):
-        for x in range(width-1):        
-            sharpness += abs( int(image[y, x]) - int(image[y, x+1]) )            
-    
-    for x in range(width):    
-        for y in range(height-1):
-            sharpness += abs( int(image[y, x]) - int(image[y+1, x]) )
-    
-    return sharpness
+   
+    return cv2.Laplacian(image, cv2.CV_64F).var()
     
 
 class BlurEstimatorSubprocessor(Subprocessor):
@@ -54,9 +45,6 @@ class BlurEstimatorSubprocessor(Subprocessor):
                 
             if dflimg is not None:
                 image = cv2_imread( str(filepath) )
-                image = ( image * \
-                          LandmarksProcessor.get_image_hull_mask (image.shape, dflimg.get_landmarks()) \
-                         ).astype(np.uint8)
                 return [ str(filepath), estimate_sharpness( image ) ]
             else:
                 self.log_err ("%s is not a dfl image file" % (filepath.name) )