ITK  5.0.0
Insight Segmentation and Registration Toolkit
itkKLMSegmentationBorder.h
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18 #ifndef itkKLMSegmentationBorder_h
19 #define itkKLMSegmentationBorder_h
20 
21 #include "itkSegmentationBorder.h"
23 #include "itkMacro.h"
24 #include "ITKKLMRegionGrowingExport.h"
25 
26 #include "itkMath.h"
27 #include "vnl/vnl_vector.h"
28 #include "itkMath.h"
29 
30 namespace itk
31 {
43 template< typename TBorder >
45 {
46 public:
55  {
56  if ( Math::ExactlyEquals(m_Pointer->GetLambda(), rhs.m_Pointer->GetLambda()) )
57  {
58  if ( m_Pointer->GetLambda() < 0 )
59  {
60  return ( m_Pointer > rhs.m_Pointer );
61  }
62  else
63  {
64  // The purpose of this comparison is to not let any one region
65  // get more borders than another region. In the degenerate
66  // case of an image where the Lambdas are always equal to some
67  // constant C, allowing a single region to be repeatedly
68  // merged so that it gains many borders will result in
69  // pathologically slow behavior.
70  double v1 = std::max(
71  static_cast< double >( m_Pointer->GetRegion1()->GetRegionBorderSize() ),
72  static_cast< double >( m_Pointer->GetRegion2()->GetRegionBorderSize() ) );
74 
75  double v2 = std::max(
76  static_cast< double >( rhs.m_Pointer->GetRegion1()->GetRegionBorderSize() ),
77  static_cast< double >( rhs.m_Pointer->GetRegion2()->GetRegionBorderSize() ) );
78 
79  return ( v1 > v2 );
80  }
81  }
82  return ( m_Pointer->GetLambda() > rhs.m_Pointer->GetLambda() );
83  }
84 
86  {
87  if ( m_Pointer->GetLambda() == rhs->m_Pointer->GetLambda() )
88  {
89  if ( m_Pointer->GetLambda() < 0 )
90  {
91  return ( m_Pointer > rhs->m_Pointer );
92  }
93  else
94  {
95  // The purpose of this comparison is to not let any one region
96  // get more borders than another region. In the degenerate
97  // case of an image where the Lambdas are always equal to some
98  // constant C, allowing a single region to be repeatedly
99  // merged so that it gains many borders will result in
100  // pathologically slow behavior.
101  double v1 = std::max(
102  static_cast< double >( m_Pointer->GetRegion1()->GetRegionBorderSize() ),
103  static_cast< double >( m_Pointer->GetRegion2()->GetRegionBorderSize() ) );
104 
105  double v2 = std::max(
106  static_cast< double >( rhs->m_Pointer->GetRegion1()->GetRegionBorderSize() ),
107  static_cast< double >( rhs->m_Pointer->GetRegion2()->GetRegionBorderSize() ) );
108 
109  return ( v1 > v2 );
110  }
111  }
112  return ( m_Pointer->GetLambda() > rhs->m_Pointer->GetLambda() );
113  }
114 
115  TBorder *m_Pointer;
116 };
117 
137 // Forward reference because of circular dependencies
138 class ITK_FORWARD_EXPORT KLMSegmentationRegion;
139 
140 class ITKKLMRegionGrowing_EXPORT KLMSegmentationBorder:public SegmentationBorder
141 {
142 public:
143  ITK_DISALLOW_COPY_AND_ASSIGN(KLMSegmentationBorder);
144 
150 
152  itkNewMacro(Self);
153 
156 
158  void SetRegion1(KLMSegmentationRegion *Region1);
159 
161  KLMSegmentationRegion * GetRegion1();
162 
164  void SetRegion2(KLMSegmentationRegion *Region2);
165 
167  KLMSegmentationRegion * GetRegion2();
168 
171  itkSetMacro(Lambda, double);
172  itkGetConstReferenceMacro(Lambda, double);
174 
176  void EvaluateLambda();
177 
179  void PrintBorderInfo();
180 
181 protected:
184 
186  ~KLMSegmentationBorder() override;
187 
189  void PrintSelf(std::ostream & os, Indent indent) const override;
190 
191 private:
192  double m_Lambda;
195 };
196 } // end namespace itk
197 
198 #endif
Base class for KLMSegmentationRegion object.
Light weight base class for most itk classes.
KLMSegmentationRegion * m_Region1
bool operator>(const KLMDynamicBorderArray< TBorder > &rhs) const
bool ExactlyEquals(const TInput1 &x1, const TInput2 &x2)
Return the result of an exact comparison between two scalar values of potetially different types...
Definition: itkMath.h:707
bool operator>(const KLMDynamicBorderArray< TBorder > *rhs) const
KLMSegmentationRegion * m_Region2
Base class for KLMSegmentationBorder object.
Control indentation during Print() invocation.
Definition: itkIndent.h:49
Base class for SegmentationBorder object.
Object maintaining a reference to a list of borders associated with a region.
class ITK_FORWARD_EXPORT KLMSegmentationBorder