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HxExportExtraIdentMaskMoments Class Template Reference

Functor for computation of the moments up to order N of all values in an image identified by a mask. More...

#include <HxExportExtraIdentMaskMoments.h>

List of all members.

Public Types
typedef HxTagTransVar	TransVarianceCategory
	Functor is translation variant. More...
typedef HxTag1Phase	PhaseCategory
	1 phase. More...
Public Methods
	HxExportExtraIdentMaskMoments (HxTagList &tags)
	Constructor. More...
	~HxExportExtraIdentMaskMoments ()
	Destructor. More...
void	doIt (const ImValT &imV, const ExtraValT &extraV, int x, int y, int z)
	Processing one pixel. More...
Static Public Methods
HxString	className ()
	The name : "identMaskMoments". More...

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Detailed Description

template<class ResultT, class ImValT, class ExtraValT>
class HxExportExtraIdentMaskMoments< ResultT, ImValT, ExtraValT >

Functor for computation of the moments up to order N of all values in an image identified by a mask.

 *  Mpq = Sum[ x^p * y^q * f(x,y) ]
 *        x,y
 *
 *  The order in the resulting list is determined by:
 *  for (int q=0 ; q<=N ; q++)
 *      for (int p=0 ; p<=N ; p++)
 *          if (p+q <= N)
 *              [Mpq];
 *
 *  For N=1 the order is: m00, m10, m01
 *  For N=2 the order is: m00, m10, m20, m01, m11, m02
 *  For N=3 the order is: m00, m10, m20, m30, m01, m11, m21, m02, m12, m03.
 * 

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Member Typedef Documentation

template<class ResultT, class ImValT, class ExtraValT> typedef HxTagTransVar HxExportExtraIdentMaskMoments::TransVarianceCategory

Functor is translation variant.

template<class ResultT, class ImValT, class ExtraValT> typedef HxTag1Phase HxExportExtraIdentMaskMoments::PhaseCategory

1 phase.

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Constructor & Destructor Documentation

template<class ResultT, class ImValT, class ExtraValT> HxExportExtraIdentMaskMoments< ResultT, ImValT, ExtraValT >::HxExportExtraIdentMaskMoments (  HxTagList &    tags )

Constructor. : _tags(tags) { _maskVal = HxGetTag<int>(tags, "maskVal"); _order = HxGetTag<int>(tags, "order"); _valList = HxGetTag<HxValueList*>(tags, "valList"); _number = ((_order+1)*(_order+2))/2; _sums = new ResultT[_number]; ResultT *ptr = _sums; for (int i=0 ; i<_number; i++) *ptr++ = HxScalarInt(0); }

template<class ResultT, class ImValT, class ExtraValT> HxExportExtraIdentMaskMoments< ResultT, ImValT, ExtraValT >::~HxExportExtraIdentMaskMoments (    )

Destructor. { HxValueListBackInserter res = std::back_inserter(*_valList); for (int i=0 ; i<_number ; i++) *res++ = HxValue(_sums[i]); delete _sums; }

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Member Function Documentation

template<class ResultT, class ImValT, class ExtraValT> void HxExportExtraIdentMaskMoments< ResultT, ImValT, ExtraValT >::doIt (  const ImValT &    imV, const ExtraValT &    extraV, int    x, int    y, int    z )  [inline]

Processing one pixel. { if (extraV == _maskVal) { int i=0; for (int q=0 ; q<=_order ; q++) { for (int p=0 ; p<=_order ; p++) { if (p+q <= _order) { HxScalarDouble f = ::pow(x, p) * ::pow(y, q); _sums[i] += ResultT(f) * ResultT(imV); i++; } } } } }

template<class ResultT, class ImValT, class ExtraValT> HxString HxExportExtraIdentMaskMoments< ResultT, ImValT, ExtraValT >::className (    )  [inline, static]

The name : "identMaskMoments". { return HxString("identMaskMoments"); }

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The documentation for this class was generated from the following file:

• HxExportExtraIdentMaskMoments.h

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