ITK  4.2.0
Insight Segmentation and Registration Toolkit
itkVoronoiSegmentationImageFilterBase.h
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5  * Licensed under the Apache License, Version 2.0 (the "License");
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14  * See the License for the specific language governing permissions and
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18 #ifndef __itkVoronoiSegmentationImageFilterBase_h
19 #define __itkVoronoiSegmentationImageFilterBase_h
20 
21 #include "itkImageToImageFilter.h"
23 #include "itkImage.h"
24 
25 namespace itk
26 {
58 template< class TInputImage, class TOutputImage, class TBinaryPriorImage = Image< unsigned char, 2 > >
60  public ImageToImageFilter< TInputImage, TOutputImage >
61 {
62 public:
68 
70  itkNewMacro(Self);
71 
74 
76  itkStaticConstMacro(ImageDimension, unsigned int,
77  TInputImage::ImageDimension);
78 
80  typedef TInputImage InputImageType;
81  typedef typename TInputImage::Pointer InputImagePointer;
82  typedef typename TInputImage::ConstPointer InputImageConstPointer;
83  typedef typename TInputImage::IndexType IndexType;
84  typedef typename TInputImage::SizeType SizeType;
85  typedef typename TInputImage::RegionType RegionType;
86  typedef typename TInputImage::PixelType PixelType;
87 
88  typedef TOutputImage OutputImageType;
89  typedef typename TOutputImage::PixelType OutputPixelType;
90 
97  typedef typename CellType::PointIdIterator PointIdIterator;
103  typedef std::vector< PointType > PointTypeVector;
104  typedef std::deque< PointType > PointTypeDeque;
105  typedef TBinaryPriorImage BinaryObjectImage;
107  typedef std::vector< IndexType > IndexList;
108 
112 
114  itkSetMacro(NumberOfSeeds, int);
115  itkGetConstMacro(NumberOfSeeds, int);
117 
119  itkSetMacro(MinRegion, int);
120  itkGetConstMacro(MinRegion, int);
122 
125  itkSetMacro(Steps, int);
126  itkGetConstMacro(Steps, int);
128 
130  itkGetConstMacro(LastStepSeeds, int);
131 
133  itkGetConstMacro(NumberOfSeedsToAdded, int);
134 
136  itkSetMacro(UseBackgroundInAPrior, bool);
137  itkGetConstMacro(UseBackgroundInAPrior, bool);
139 
141  itkSetMacro(OutputBoundary, bool);
142  itkGetConstMacro(OutputBoundary, bool);
144 
147  itkSetMacro(InteractiveSegmentation, bool);
148  itkGetConstMacro(InteractiveSegmentation, bool);
149  itkBooleanMacro(InteractiveSegmentation);
151 
153  itkSetMacro(MeanDeviation, double);
154  itkGetConstMacro(MeanDeviation, double);
156 
158  itkSetMacro(Size, SizeType);
159  itkGetConstMacro(Size, SizeType);
161 
164  virtual void TakeAPrior(const BinaryObjectImage *){}
165 
167  void RunSegment(void);
168 
170  void RunSegmentOneStep(void);
171 
173  virtual void MakeSegmentBoundary(void);
174 
175  virtual void MakeSegmentObject(void);
176 
178  VoronoiPointer GetVoronoiDiagram(void)
179  { return m_WorkingVD; }
180 
181 #if !defined( CABLE_CONFIGURATION ) // generates invalid iterator instantiation
182  // with msvc
186  void SetSeeds(int num, SeedsIterator begin)
187  {
188  m_NumberOfSeeds = num;
189  m_WorkingVD->SetSeeds(num, begin);
190  }
192 
193 #endif
194 
198  void SetSeeds(SeedsType & seeds)
199  {
200  m_NumberOfSeeds = seeds.size();
201  typename SeedsType::iterator it = seeds.begin();
202  m_WorkingVD->SetSeeds(m_NumberOfSeeds, it);
203  }
205 
207  PointType GetSeed(int SeedID)
208  { return m_WorkingVD->GetSeed(SeedID); }
209 
211  void DrawDiagram(VDImagePointer result, unsigned char incolor,
212  unsigned char outcolor, unsigned char boundcolor);
213 
214  void BeforeNextStep(void);
215 
218  virtual void GenerateInputRequestedRegion();
219 
222  virtual void EnlargeOutputRequestedRegion(DataObject *output);
223 
224 protected:
227  virtual void PrintSelf(std::ostream & os, Indent indent) const;
228 
229  void GenerateData(void); //general pipeline function.
230 
234  int m_Steps;
238 
239  std::vector< int > m_NumberOfPixels;
240  std::vector< unsigned char > m_Label;
241 
244  bool m_OutputBoundary; //if =1 then output the boundaries, if = 0 then
245  // output the object.
247 
249 
251 
252  std::vector< PointType > m_SeedsToAdded;
253 
254  // private methods:
255  // Classify all the voronoi cells as interior , exterior or boundary.
256  virtual void ClassifyDiagram(void);
257 
258  // Generate the seeds to be added by dividing the boundary cells.
259  virtual void GenerateAddingSeeds(void);
260 
261  // Compute the statistics of the pixels inside the cell.
262  void GetPixelIndexFromPolygon(PointTypeDeque VertList, IndexList *PixelPool);
263 
264  virtual bool TestHomogeneity(IndexList &)
265  { return 1; }
266 
267  void FillPolygon(PointTypeDeque vertlist, OutputPixelType color = 1);
268 
269  // Draw a straight line to the output image.
270  void drawLine(PointType p1, PointType p2);
271 
272  // Draw the intermedia Voronoi Diagram structure.
273  void drawVDline(VDImagePointer result, PointType p1, PointType p2, unsigned char color);
274 
275 private:
276  VoronoiSegmentationImageFilterBase(const Self &); //purposely not implemented
277  void operator=(const Self &); //purposely not implemented
278 };
279 } //end namespace
280 
281 #ifndef ITK_MANUAL_INSTANTIATION
282 #include "itkVoronoiSegmentationImageFilterBase.hxx"
283 #endif
284 
285 #endif
286