Update img_util.py

Author: anna-grim

src/segmentation_skeleton_metrics/utils/img_util.py

@@ -178,12 +178,12 @@ def __init__(self, img_path, swap_axes=True):
         swap_axes : bool, optional
             Indication of whether to swap axes 0 and 2. Default is True.
         """
-        # Call parent class
-        super().__init__(img_path)
-
         # Instance attributes
         self.swap_axes = swap_axes
 
+        # Call parent class
+        super().__init__(img_path)
+
     def _load_image(self):
         """
         Loads image using the Tifffile library.