template<typename P>
struct boost::gil::HomogeneousPixelConcept< P >
Homogeneous pixel concept. 
concept HomogeneousPixelConcept<PixelConcept P>
    : HomogeneousColorBaseConcept<P>, HomogeneousPixelBasedConcept<P>
{
    P::template element_const_reference_type<P>::type operator[](P p, std::size_t i) const
    {
        return dynamic_at_c(p,i);
}
};