diff --git a/src/core.py b/src/core.py
index a9d09a2..3a11511 100755
--- a/src/core.py
+++ b/src/core.py
@@ -55,7 +55,8 @@
 #from PIL.Image import open as image_open,new as image_new, alpha_composite as image_alpha_composite
 #from imagehash import average_hash,phash,dhash
 
-#from sklearn.cluster import DBSCAN
+from sklearn.cluster import DBSCAN
+from numpy import array as numpy_array, radians
 
 DELETE=0
 SOFTLINK=1