Update utils.py

utils.py

@@ -17,9 +17,9 @@ def calculate_reduced_dimensions(width, height, unit, selection, object_item_val
     else: 
         reduction_width = object_item_value[selection][item_type]['width']
         reduction_height = object_item_value[selection][item_type]['height']
-
-    divider_h = object_item_value['divider'][item_type]['height']
-    divider_w = object_item_value['divider'][item_type]['width']
+    selection_div = "divider_sh" if selection == 'shutter' else 'divider_gl'
+    divider_h = object_item_value[selection_div][item_type]['height']
+    divider_w = object_item_value[selection_div][item_type]['width']
 
     # Calculate the reduced dimensions based on the width and height
     reduced_width = (width - reduction_width) / divider_w