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
|
/*=========================================================================
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 otbLog10ThresholdedImageFilter_h
#define otbLog10ThresholdedImageFilter_h
#include "itkUnaryFunctorImageFilter.h"
#include "vnl/vnl_math.h"
namespace otb
{
/** \class Log10ThresholdedImageFilter
* \brief Computes the 10 * vcl_log10(x) pixel-wise with a threshold for the lowest values
*
* \ingroup OTBImageManipulation
*/
namespace Functor
{
template<class TInput, class TOutput>
class Log10Thresholded
{
public:
Log10Thresholded()
{
m_ThresholdValue = 0.001; // -> -30dB
}
~Log10Thresholded()
{
}
bool operator!=(const Log10Thresholded &) const
{
return false;
}
bool operator==(const Log10Thresholded & other) const
{
return !(*this != other);
}
inline TOutput operator()(const TInput & A) const
{
if ((static_cast<double> (A) >= m_ThresholdValue) && (A == A))
{
return static_cast<TOutput> (10.0 * vcl_log10(static_cast<double> (A)));
}
else // If (A != A) then A is a NaN
{
return static_cast<TOutput> (10.0 * vcl_log10(m_ThresholdValue));
}
}
/** Set ThresholdValue method */
void SetThresholdValue(const double value)
{
if (value > 0.0)
{
m_ThresholdValue = value;
}
}
private:
double m_ThresholdValue;
};
} // End namespace Functor
template <class TInputImage, class TOutputImage>
class ITK_EXPORT Log10ThresholdedImageFilter :
public itk::UnaryFunctorImageFilter<TInputImage, TOutputImage, Functor::Log10Thresholded<typename TInputImage::PixelType, typename TOutputImage::PixelType> >
{
public:
/** Standard class typedefs. */
typedef Log10ThresholdedImageFilter Self;
typedef Functor::Log10Thresholded< typename TInputImage::PixelType, typename TOutputImage::PixelType> FunctorType;
typedef itk::UnaryFunctorImageFilter< TInputImage, TOutputImage, FunctorType> Superclass;
typedef itk::SmartPointer<Self> Pointer;
typedef itk::SmartPointer<const Self> ConstPointer;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Runtime information support. */
itkTypeMacro(Log10ThresholdedImageFilter,
itk::UnaryFunctorImageFilter);
void SetThresholdedValue(double val)
{
this->GetFunctor().SetThresholdValue(val);
}
protected:
Log10ThresholdedImageFilter() {}
~Log10ThresholdedImageFilter() ITK_OVERRIDE {}
private:
Log10ThresholdedImageFilter(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
};
} // end namespace otb
#endif
|
