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diff --git a/boost/gil/extension/toolbox/metafunctions/get_pixel_type.hpp b/boost/gil/extension/toolbox/metafunctions/get_pixel_type.hpp
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+++ b/boost/gil/extension/toolbox/metafunctions/get_pixel_type.hpp
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+/*
+    Copyright 2012 Christian Henning, Andreas Pokorny, Lubomir Bourdev
+    Use, modification and distribution are subject to the Boost Software License,
+    Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+    http://www.boost.org/LICENSE_1_0.txt).
+*/
+
+/*************************************************************************************************/
+
+#ifndef BOOST_GIL_EXTENSION_TOOLBOX_METAFUNCTIONS_GET_PIXEL_TYPE_HPP
+#define BOOST_GIL_EXTENSION_TOOLBOX_METAFUNCTIONS_GET_PIXEL_TYPE_HPP
+
+////////////////////////////////////////////////////////////////////////////////////////
+/// \file get_pixel_type.hpp
+/// \brief get_pixel_type metafunction.
+/// \author Christian Henning, Andreas Pokorny, Lubomir Bourdev \n
+///
+/// \date 2012 \n
+///
+////////////////////////////////////////////////////////////////////////////////////////
+
+#include <boost/gil/extension/toolbox/dynamic_images.hpp>
+#include <boost/gil/extension/toolbox/metafunctions/is_bit_aligned.hpp>
+
+namespace boost{ namespace gil {
+
+/// get_pixel_type metafunction
+/// \brief Depending on Image this function generates either 
+///        the pixel type or the reference type in case
+///        the image is bit_aligned.
+template< typename View >
+struct get_pixel_type : mpl::if_< typename is_bit_aligned< typename View::value_type >::type
+                                , typename View::reference
+                                , typename View::value_type
+                                > {};
+
+template< typename ImageViewTypes >
+struct get_pixel_type< any_image_view< ImageViewTypes > >
+{
+    typedef any_image_pixel_t type;
+};
+
+} // namespace gil
+} // namespace boost
+
+#endif // BOOST_GIL_EXTENSION_TOOLBOX_METAFUNCTIONS_GET_PIXEL_TYPE_HPP