#ifndef BackgroundConnectivity_h
#define BackgroundConnectivity_h

#include "Connectivity.h"

namespace itk
{

/**
 * @brief Helper to determine the background connectivity
 * @param FGConnectivity : the image connectivity
 */
template<typename TConnectivity>
struct BackgroundConnectivity
{
    typedef Connectivity<TConnectivity::Dimension, TConnectivity::Dimension-1 > Type;
};

template<>
struct BackgroundConnectivity< Connectivity<2,1> >
{
    typedef Connectivity<2, 0> Type;
};

template<>
struct BackgroundConnectivity< Connectivity<3,2> >
{
    typedef Connectivity<3, 0> Type;
};

}

#endif // BackgroundConnectivity_h