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diff --git a/boost/gil/concepts/pixel_based.hpp b/boost/gil/concepts/pixel_based.hpp
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+//
+// Copyright 2005-2007 Adobe Systems Incorporated
+//
+// Distributed under 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_CONCEPTS_PIXEL_BASED_HPP
+#define BOOST_GIL_CONCEPTS_PIXEL_BASED_HPP
+
+#include <boost/gil/concepts/basic.hpp>
+#include <boost/gil/concepts/channel.hpp>
+#include <boost/gil/concepts/color.hpp>
+#include <boost/gil/concepts/concept_check.hpp>
+#include <boost/gil/concepts/fwd.hpp>
+
+#include <cstddef>
+
+#if defined(BOOST_CLANG)
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wunused-local-typedefs"
+#endif
+
+#if defined(BOOST_GCC) && (BOOST_GCC >= 40600)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-local-typedefs"
+#endif
+
+namespace boost { namespace gil {
+
+/// \ingroup PixelBasedConcept
+/// \brief Concept for all pixel-based GIL constructs.
+///
+/// Pixel-based constructs include pixels, iterators, locators, views and
+/// images whose value type is a pixel.
+///
+/// \code
+/// concept PixelBasedConcept<typename T>
+/// {
+///     typename color_space_type<T>;
+///         where Metafunction<color_space_type<T> >;
+///         where ColorSpaceConcept<color_space_type<T>::type>;
+///     typename channel_mapping_type<T>;
+///         where Metafunction<channel_mapping_type<T> >;
+///         where ChannelMappingConcept<channel_mapping_type<T>::type>;
+///     typename is_planar<T>;
+///         where Metafunction<is_planar<T> >;
+///         where SameType<is_planar<T>::type, bool>;
+/// };
+/// \endcode
+template <typename P>
+struct PixelBasedConcept
+{
+    void constraints()
+    {
+        using color_space_t = typename color_space_type<P>::type;
+        gil_function_requires<ColorSpaceConcept<color_space_t>>();
+
+        using channel_mapping_t = typename channel_mapping_type<P>::type ;
+        gil_function_requires<ChannelMappingConcept<channel_mapping_t>>();
+
+        static const bool planar = is_planar<P>::value;
+        ignore_unused_variable_warning(planar);
+
+        // This is not part of the concept, but should still work
+        static const std::size_t nc = num_channels<P>::value;
+        ignore_unused_variable_warning(nc);
+    }
+};
+
+/// \brief Concept for homogeneous pixel-based GIL constructs
+/// \ingroup PixelBasedConcept
+/// \code
+/// concept HomogeneousPixelBasedConcept<PixelBasedConcept T>
+/// {
+///     typename channel_type<T>;
+///         where Metafunction<channel_type<T>>;
+///         where ChannelConcept<channel_type<T>::type>;
+/// };
+/// \endcode
+template <typename P>
+struct HomogeneousPixelBasedConcept
+{
+    void constraints()
+    {
+        gil_function_requires<PixelBasedConcept<P>>();
+
+        using channel_t = typename channel_type<P>::type;
+        gil_function_requires<ChannelConcept<channel_t>>();
+    }
+};
+
+}} // namespace boost::gil
+
+#if defined(BOOST_CLANG)
+#pragma clang diagnostic pop
+#endif
+
+#if defined(BOOST_GCC) && (BOOST_GCC >= 40600)
+#pragma GCC diagnostic pop
+#endif
+
+#endif