1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
|
/*=========================================================================
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 otbHuPathFunction_h
#define otbHuPathFunction_h
#include "otbRealMomentPathFunction.h"
namespace otb
{
/**
* \class HuPathFunction
* \brief Calculate the Hu's invariant parameter.
*
* Calculate the Hu's invariant defined as:
*
* - \f$ \phi_{1} = c_{11} \f$
* - \f$ \phi_{2} = c_{20} c_{02} \f$
* - \f$ \phi_{3} = c_{30} c_{03} \f$
* - \f$ \phi_{4} = c_{21} c_{12} \f$
* - \f$ \phi_{5} = Re (c_{30} c_{12}^{3}) \f$
* - \f$ \phi_{6} = Re (c_{20} c_{12}^{2}) \f$
* - \f$ \phi_{7} = Im (c_{30} c_{12}^{3}) \f$
*
* With :
*
* \f[ c_{p, q}=\int \int (x+iy)^{p} \cdot (x-iy)^{q} \cdot f(x, y) \cdot
dx \cdot dy \f]
*
* And:
* - \f$(x, y)\f$ pixel localization;
* - \f$ f(x, y)\f$ the pixel value over the \f$(x, y)\f$ coordinate.
*
* This class is templated over the input image type and the
* path type (e.g. PolyLineParametricPath<2> ).
*
* \ingroup FunctionFunctions
*
* \ingroup OTBMoments
*/
template <class TInputPath,
class TOutput = double,
class TPrecision = double>
class ITK_EXPORT HuPathFunction :
public RealMomentPathFunction<TInputPath, TOutput, TPrecision>
{
public:
/** Standard class typedefs. */
typedef HuPathFunction Self;
typedef RealMomentPathFunction<TInputPath, TOutput, TPrecision> Superclass;
typedef itk::SmartPointer<Self> Pointer;
typedef itk::SmartPointer<const Self> ConstPointer;
/** Run-time type information (and related methods). */
itkTypeMacro(HuPathFunction, RealMomentPathFunction);
/** 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;
/** OutputType typedef support. */
typedef typename Superclass::RealType RealType;
/** Type for calculation precision */
typedef typename Superclass::PrecisionType PrecisionType;
/** Evaluate the function at non-integer positions */
RealType Evaluate(const PathType& path) const ITK_OVERRIDE;
virtual RealType Evaluate() const;
/** Get/Set the radius of the neighborhood over which the
statistics are evaluated */
itkSetMacro(MomentNumber, short);
itkGetConstReferenceMacro(MomentNumber, short);
protected:
HuPathFunction();
~HuPathFunction() ITK_OVERRIDE {}
void PrintSelf(std::ostream& os, itk::Indent indent) const ITK_OVERRIDE;
private:
HuPathFunction(const Self &); //purposely not implemented
void operator =(const Self&); //purposely not implemented
short m_MomentNumber;
};
} // namespace otb
#ifndef OTB_MANUAL_INSTANTIATION
#include "otbHuPathFunction.txx"
#endif
#endif
|
