Merge pull request #148 from jimrybarski/147-more-numpylike-behavior

#147: this mostly resolves the issue and I'm going to close it out wi…

nd2reader/model/image.py

@@ -19,6 +19,12 @@ class Image(np.ndarray):
         self._channel = None
         self._z_level = None
 
+    def __array_wrap__(self, obj):
+        if len(obj.shape) == 0:
+            return obj[()]
+        else:
+            return np.ndarray.__array_wrap__(obj)
+
     def add_params(self, index, timestamp, frame_number, field_of_view, channel, z_level):
         """
         :param index: The integer that can be used to directly index this image