diff --git a/situr/__init__.py b/situr/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/situr/image/__init__.py b/situr/image/__init__.py
new file mode 100644
index 0000000..5415611
--- /dev/null
+++ b/situr/image/__init__.py
@@ -0,0 +1,2 @@
+from .situ_image import extend_dim, remove_dim
+from .situ_image import SituImage
\ No newline at end of file
diff --git a/situr/registration/__init__.py b/situr/registration/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/situr/transformation/__init__.py b/situr/transformation/__init__.py
new file mode 100644
index 0000000..e69de29