fix alphabetical order

chainercv/utils/__init__.py

@@ -4,8 +4,8 @@
 from chainercv.utils.download import download_model  # NOQA
 from chainercv.utils.download import extractall  # NOQA
 from chainercv.utils.image import read_image  # NOQA
+from chainercv.utils.image import tile_images  # NOQA
 from chainercv.utils.image import write_image  # NOQA
-from chainercv.utils.image.tile_images import tile_images  # NOQA
 from chainercv.utils.iterator import apply_prediction_to_iterator  # NOQA
 from chainercv.utils.iterator import unzip  # NOQA
 from chainercv.utils.testing import assert_is_bbox  # NOQA

chainercv/utils/image/__init__.py

@@ -1,3 +1,3 @@
 from chainercv.utils.image.read_image import read_image  # NOQA
-from chainercv.utils.image.write_image import write_image  # NOQA
 from chainercv.utils.image.tile_images import tile_images  # NOQA
+from chainercv.utils.image.write_image import write_image  # NOQA

docs/source/reference/utils.rst

@@ -39,14 +39,14 @@ read_image
 ~~~~~~~~~~
 .. autofunction:: read_image
 
-write_image
-~~~~~~~~~~~
-.. autofunction:: write_image
-
 tile_images
 ~~~~~~~~~~~
 .. autofunction:: tile_images
 
+write_image
+~~~~~~~~~~~
+.. autofunction:: write_image
+
 
 Iterator Utilities
 ------------------