diff --git a/AUTHORS b/AUTHORS
new file mode 100644
index 0000000..8a4f903
--- /dev/null
+++ b/AUTHORS
@@ -0,0 +1,2 @@
+Jonas Obrist
+Kristian Oellegaard
diff --git a/notes.txt b/notes.txt
index 30366b5..90a6157 100644
--- a/notes.txt
+++ b/notes.txt
@@ -5,3 +5,5 @@ pypy guys recommended using a flat array instead of list of array for pixels
 need to change png reader/writer to just be optimized for whatever pixel format
 we use and not just wrap the existing library.
 
+bilinear filtering in python: http://stackoverflow.com/questions/8661537/how-to-perform-bilinear-interpolation-in-python
+
diff --git a/notpil/operations/geometry.py b/notpil/helpers.py
similarity index 100%
rename from notpil/operations/geometry.py
rename to notpil/helpers.py
diff --git a/notpil/image.py b/notpil/image.py
index 14fbbbb..dd3a834 100644
--- a/notpil/image.py
+++ b/notpil/image.py
@@ -1,8 +1,7 @@
 # -*- coding: utf-8 -*-
 from notpil.exceptions import FormatNotSupported
 from notpil.formats import get_format, get_format_objects
-from notpil.incubator import geometry as incubator_geometry
-from notpil.operations.geometry import Fliprow
+from notpil.helpers import Fliprow
 from notpil.utils import get_pixel
 import array
 import os
@@ -53,7 +52,7 @@ def save_to_path(self, filepath, format=None):
     # Geometry Operations 
     #==========================================================================
 
-    def resize(self, width, height):
+    def resize(self, width, height, algorithm=Nearest):
         raise NotImplementedError()
         target = Image.empty(width, height, self.mode)
         incubator_geometry.resize(target, self, incubator_geometry.nearest_filter)
diff --git a/notpil/operations/__init__.py b/notpil/operations/__init__.py
deleted file mode 100644
index e69de29..0000000