Update app.py

app.py

@@ -12,8 +12,8 @@ model = load_model('sudoku_net.h5')
 
 def preprocess(image):
     gray = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY) 
-    blur = cv2.GaussianBlur(gray, (3,3),6) 
-    #blur = cv2.bilateralFilter(gray,9,75,75)
+    # blur = cv2.GaussianBlur(gray, (3,3),6) 
+    blur = cv2.bilateralFilter(gray,9,75,75)
     threshold_img = cv2.adaptiveThreshold(blur,255,1,1,11,2)
     return threshold_img