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diff --git a/imageEngine/gray_images/figure_2_gray.png b/imageEngine/gray_images/figure_2_gray.png
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diff --git a/imageEngine/image_python b/imageEngine/image_python
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+++ b/imageEngine/image_python
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+Subproject commit f8e933cbdc76fa3f329c2fdcb3dd5e9cacc23e23
diff --git a/imageEngine/image_test.jpg b/imageEngine/image_test.jpg
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diff --git a/imageEngine/sobel/image_test.png b/imageEngine/sobel/image_test.png
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diff --git a/imageEngine/umage.py b/imageEngine/umage.py
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+++ b/imageEngine/umage.py
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+from PIL import Image
+import itertools
+
+
+def load(filename):
+    """ Given a filename that matches an image file,
+    return a list of lists of tuples corresponding to the list of
+    lines of pixels (R, G, B) of the image. """
+
+    with Image.open(filename, 'r') as image:
+        image = image.convert('RGB')
+        content = list(image.getdata())
+        size_x, size_y = image.size
+        return [content[i:i + size_x] for i in range(0, len(content), size_x)]
+
+
+def save(image, filename='new', extension='jpg'):
+    """ Stores the given image into a file. The name
+    of the file is set to <filename>.<extension> which is
+    'new.jpg' by default. """
+
+    size_x, size_y = len(image), len(image[0])
+    new_image = Image.new('RGB', (size_y, size_x))
+    new_image.putdata(list(itertools.chain.from_iterable(image)))
+    new_image.save('%s.%s' % (filename, extension))