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/*=========================================================================
Program: ORFEO Toolbox
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) Centre National d'Etudes Spatiales. All rights reserved.
See OTBCopyright.txt for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#ifndef otbComplexMomentPathFunction_h
#define otbComplexMomentPathFunction_h
#include "otbGeometricMomentPathFunction.h"
#include "itkVectorContainer.h"
namespace otb
{
/**
* \class ComplexMomentPathFunction
* \brief Calculate the complex moment value over a path.
*
* The implemented equation is:
*
* \f[ c_{p, q}=\int\int_{D} (x+iy)^{p} \cdot (x-iy)^{q} \cdot
dx \cdot dy \f]
*
* With:
*
* - \f$ (x, y) \f$ pixel localization;
* - \f$ D \f$ the contour domain.
*
* This class is templated over :
* - the input image type
* - the path type
* - and the coordinate representation type (e.g. float or double).
*
* \ingroup ImageFunctions
*
* \ingroup OTBMoments
*/
template <class TInputPath,
class TOutput = std::complex<double>,
class TPrecision = double>
class ITK_EXPORT ComplexMomentPathFunction :
public GeometricMomentPathFunction<TInputPath,
TOutput,
TPrecision>
{
public:
/** Standard class typedefs. */
typedef ComplexMomentPathFunction Self;
typedef GeometricMomentPathFunction<TInputPath, TOutput, TPrecision> Superclass;
typedef itk::SmartPointer<Self> Pointer;
typedef itk::SmartPointer<const Self> ConstPointer;
/** Run-time type information (and related methods). */
itkTypeMacro(ComplexMomentPathFunction, GeometricMomentPathFunction);
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** InputPathType typedef support. */
typedef typename Superclass::PathType PathType;
typedef typename Superclass::PathConstPointer PathConstPointer;
typedef typename PathType::ContinuousIndexType VertexType;
typedef itk::VectorContainer<unsigned, VertexType> VertexListType;
typedef typename VertexListType::ConstPointer VertexListPointer;
/** Complex Type */
typedef typename Superclass::OutputType ComplexType;
typedef typename Superclass::OutputType OutputType;
typedef double RealType;
/** Type for calculation precision */
typedef typename Superclass::PrecisionType PrecisionType;
/** ComplexType for calculation precision */
typedef std::complex<PrecisionType> ComplexPrecisionType;
/** Evalulate the function */
OutputType Evaluate(const PathType& path) const ITK_OVERRIDE;
virtual OutputType Evaluate() const;
itkSetMacro(P, unsigned int);
itkGetConstReferenceMacro(P, unsigned int);
itkSetMacro(Q, unsigned int);
itkGetConstReferenceMacro(Q, unsigned int);
protected:
ComplexMomentPathFunction();
~ComplexMomentPathFunction() ITK_OVERRIDE {}
void PrintSelf(std::ostream& os, itk::Indent indent) const ITK_OVERRIDE;
private:
ComplexMomentPathFunction(const Self &); //purposely not implemented
void operator =(const Self&); //purposely not implemented
ComplexPrecisionType EvaluateComplexMomentAtIndex(VertexType index) const;
unsigned int m_P;
unsigned int m_Q;
};
} // namespace otb
#ifndef OTB_MANUAL_INSTANTIATION
#include "otbComplexMomentPathFunction.txx"
#endif
#endif
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