|| || || || || || || ||

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M9poJOSAw.h

Go to the documentation of this file.

#ifndef Impala_Core_Array_Trait_M9poJOSAw_h
#define Impala_Core_Array_Trait_M9poJOSAw_h

#include "Core/Array/Pattern/Categories.h"
#include "Core/Array/Element/E1Sqrt.h"

namespace Impala
{
namespace Core
{
namespace Array
{
namespace Trait
{


template<class DstArrayT, class SrcArrayT>
class M9poJOSAw
{
public:
    typedef Pattern::TagTransInVar TransVarianceCategory;

    typedef Pattern::TagCallValue CallCategory;

    typedef typename DstArrayT::ArithType DstArithT;
    typedef typename SrcArrayT::ArithType SrcArithT;

    M9poJOSAw()
    {
    }

    DstArithT
    DoIt(const SrcArithT& R, const SrcArithT& G, const SrcArithT& B,
         const SrcArithT& Rx, const SrcArithT& Gx, const SrcArithT& Bx,
         const SrcArithT& Ry, const SrcArithT& Gy, const SrcArithT& By)
    {
        SrcArithT rrx = (G*Rx-Gx*R)/(G*G);
        SrcArithT rry = (G*Ry-Gy*R)/(G*G);
        SrcArithT ggx = (B*Gx-Bx*G)/(B*B);
        SrcArithT ggy = (B*Gy-By*G)/(B*B);
        SrcArithT bbx = (R*Bx-Rx*B)/(R*R);
        SrcArithT bby = (R*By-Ry*B)/(R*R);

        return Element::E1Sqrt(rrx*rrx+rry*rry+ggx*ggx+ggy*ggy+bbx*bbx+bby*bby);
    }

};

} // namespace Trait
} // namespace Array
} // namespace Core
} // namespace Impala

#endif

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