concept PixelIteratorConcept<typename Iterator> : boost_concepts::RandomAccessTraversalConcept<Iterator>, PixelBasedConcept<Iterator> {
where PixelValueConcept<value_type>;
typename const_iterator_type<It>::type;
where PixelIteratorConcept<const_iterator_type<It>::type>;
static const bool iterator_is_mutable<It>::type::value;
static const bool is_iterator_adaptor<It>::type::value;
};