ITK  5.4.0
Insight Toolkit
itkBSplineResampleImageFilterBase.h
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22  * Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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28 #ifndef itkBSplineResampleImageFilterBase_h
29 #define itkBSplineResampleImageFilterBase_h
30 
31 #include <vector>
32 
34 #include "itkImageRegionIterator.h" // Used for the output iterator needs to
35  // match filter program
36 #include "itkProgressReporter.h"
37 #include "itkImageToImageFilter.h"
38 
39 namespace itk
40 {
82 template <typename TInputImage, typename TOutputImage>
83 class ITK_TEMPLATE_EXPORT BSplineResampleImageFilterBase : public ImageToImageFilter<TInputImage, TOutputImage>
84 {
85 public:
86  ITK_DISALLOW_COPY_AND_MOVE(BSplineResampleImageFilterBase);
87 
93 
95  itkOverrideGetNameOfClassMacro(BSplineResampleImageFilterBase);
96 
98  // Must be instantiated through another class. itkNewMacro( Self );
99 
101  using typename Superclass::InputImageType;
102 
104  static constexpr unsigned int ImageDimension = TInputImage::ImageDimension;
105 
108 
110  using SizeType = typename TInputImage::SizeType;
111 
114 
116  using typename Superclass::OutputImagePixelType;
117 
120 
123 
126 
129  void
130  SetSplineOrder(int splineOrder);
131 
133  itkGetConstMacro(SplineOrder, int);
134 
135 protected:
137  void
138  ReduceNDImage(OutputImageIterator & outItr);
139 
141  void
142  ExpandNDImage(OutputImageIterator & outItr);
143 
146  virtual void
147  InitializePyramidSplineFilter(int SplineOrder);
148 
154  virtual void
155  Reduce1DImage(const std::vector<double> & in,
156  OutputImageIterator & out,
157  unsigned int inTraverseSize,
158  ProgressReporter & progress);
159 
165  virtual void
166  Expand1DImage(const std::vector<double> & in,
167  OutputImageIterator & out,
168  unsigned int inTraverseSize,
169  ProgressReporter & progress);
170 
172  ~BSplineResampleImageFilterBase() override = default;
173  void
174  PrintSelf(std::ostream & os, Indent indent) const override;
175 
176  int m_SplineOrder{}; // User specified spline order
177  int m_GSize{}; // downsampling filter size
178  int m_HSize{}; // upsampling filter size
179 
180  std::vector<double> m_G{}; // downsampling filter coefficients
181  std::vector<double> m_H{}; // upsampling filter coefficients
182 
183 private:
185  void
186  InitializeScratch(SizeType DataLength);
187 
189  void
190  CopyInputLineToScratch(ConstInputImageIterator & Iter);
191 
192  void
193  CopyOutputLineToScratch(ConstOutputImageIterator & Iter);
194 
195  void
196  CopyLineToScratch(ConstInputImageIterator & Iter);
197 
198  std::vector<double> m_Scratch{}; // temp storage for processing
199  // of Coefficients
200 };
201 } // namespace itk
202 
203 #ifndef ITK_MANUAL_INSTANTIATION
204 # include "itkBSplineResampleImageFilterBase.hxx"
205 #endif
206 
207 #endif
itk::BSplineResampleImageFilterBase
Uses the "l2" spline pyramid implementation of B-Spline Filters to up/down sample an image by a facto...
Definition: itkBSplineResampleImageFilterBase.h:83
itk::ImageLinearIteratorWithIndex
A multi-dimensional image iterator that visits image pixels within a region in a "scan-line" order.
Definition: itkImageLinearIteratorWithIndex.h:67
itkProgressReporter.h
itk::GTest::TypedefsAndConstructors::Dimension2::SizeType
ImageBaseType::SizeType SizeType
Definition: itkGTestTypedefsAndConstructors.h:49
itk::SmartPointer< Self >
itkImageRegionIterator.h
itk::Indent
Control indentation during Print() invocation.
Definition: itkIndent.h:49
itk::BSplineResampleImageFilterBase::RegionType
typename TInputImage::RegionType RegionType
Definition: itkBSplineResampleImageFilterBase.h:113
itk::GTest::TypedefsAndConstructors::Dimension2::IndexType
ImageBaseType::IndexType IndexType
Definition: itkGTestTypedefsAndConstructors.h:50
itk::ImageToImageFilter
Base class for filters that take an image as input and produce an image as output.
Definition: itkImageToImageFilter.h:108
itk::ImageSource
Base class for all process objects that output image data.
Definition: itkImageSource.h:67
itk::GTest::TypedefsAndConstructors::Dimension2::RegionType
ImageBaseType::RegionType RegionType
Definition: itkGTestTypedefsAndConstructors.h:54
itkImageLinearIteratorWithIndex.h
itk::BSplineResampleImageFilterBase::IndexType
typename TInputImage::IndexType IndexType
Definition: itkBSplineResampleImageFilterBase.h:107
itkImageToImageFilter.h
itk
The "itk" namespace contains all Insight Segmentation and Registration Toolkit (ITK) classes....
Definition: itkAnnulusOperator.h:24
itk::ProcessObject
The base class for all process objects (source, filters, mappers) in the Insight data processing pipe...
Definition: itkProcessObject.h:139
itk::ProgressReporter
Implements progress tracking for a filter.
Definition: itkProgressReporter.h:60
itk::BSplineResampleImageFilterBase::SizeType
typename TInputImage::SizeType SizeType
Definition: itkBSplineResampleImageFilterBase.h:110
itk::ImageLinearConstIteratorWithIndex
A multi-dimensional image iterator that visits image pixels within a region in a "scan-line" order.
Definition: itkImageLinearConstIteratorWithIndex.h:101