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HxNgbNormCorrelation.h

/*
 *  Copyright (c) 2000, University of Amsterdam, The Netherlands.
 *  All rights reserved.
 *
 *
 *  Author(s):
 *  Dennis Koelma (koelma@wins.uva.nl)
 *  Edo Poll (poll@wins.uva.nl)
 */

#ifndef HxNgbNormCorrelation_h
#define HxNgbNormCorrelation_h


template <class ArithT, class ResultT>
class HxNgbNormCorrelation
{
public:

    typedef HxNgbLoopTag        IteratorCategory;

    typedef HxNgb2PhaseTag      PhaseCategory;

    typedef HxNgbTransInVarTag  TransVarianceCategory;

                        HxNgbNormCorrelation(HxTagList& tags);
                        ~HxNgbNormCorrelation();

    HxSizes             size();

    void                init();
    void                next(int x, int y, ArithT pixV, ArithT maskV);
    void                init2();
    void                next2(int x, int y, ArithT pixV, ArithT maskV);

    ResultT             result();

    static HxString     className();

private:
    int                 _num;
    ResultT             _fBar;
    ResultT             _wBar;
    ResultT             _sumFW;
    ResultT             _sumFSqr;
    ResultT             _sumWSqr;

    HxSizes             _ngbSize;
};

#ifdef INC_TEMPLATE_SRC
#include "HxNgbNormCorrelation.c"
#endif

#endif

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