ITK  4.9.0
Insight Segmentation and Registration Toolkit
itkComposeImageFilter.h
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1 /*=========================================================================
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3  * Copyright Insight Software Consortium
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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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17  *=========================================================================*/
18 #ifndef itkComposeImageFilter_h
19 #define itkComposeImageFilter_h
20 
21 #include "itkImageToImageFilter.h"
22 #include "itkVectorImage.h"
24 #include <vector>
25 
26 namespace itk
27 {
57 template< typename TInputImage, typename TOutputImage=VectorImage<typename TInputImage::PixelType, TInputImage::ImageDimension> >
59  public ImageToImageFilter< TInputImage, TOutputImage >
60 {
61 public:
62 
67  itkNewMacro(Self);
69 
70  itkStaticConstMacro(Dimension, unsigned int, TInputImage::ImageDimension);
71 
72  typedef TInputImage InputImageType;
73  typedef TOutputImage OutputImageType;
74  typedef typename InputImageType::PixelType InputPixelType;
75  typedef typename OutputImageType::PixelType OutputPixelType;
76  typedef typename InputImageType::RegionType RegionType;
77 
78  void SetInput1(const InputImageType *image1);
79  void SetInput2(const InputImageType *image2);
80  void SetInput3(const InputImageType *image3);
81 
82 #ifdef ITK_USE_CONCEPT_CHECKING
83  // Begin concept checking
84  itkConceptMacro( InputCovertibleToOutputCheck,
86  // End concept checking
87 #endif
88 
89 protected:
91 
92  virtual void GenerateOutputInformation(void) ITK_OVERRIDE;
93 
94  virtual void BeforeThreadedGenerateData() ITK_OVERRIDE;
95 
96  virtual void ThreadedGenerateData(const RegionType & outputRegionForThread, ThreadIdType) ITK_OVERRIDE;
97 
98 private:
99  ComposeImageFilter(const Self &) ITK_DELETE_FUNCTION;
100  void operator=(const Self &) ITK_DELETE_FUNCTION;
101 
102 
103  // we have to specialize the code for complex, because it provides no operator[]
104  // method
106  typedef std::vector< InputIteratorType > InputIteratorContainerType;
107 
108  template<typename T>
109  void ComputeOutputPixel(std::complex<T> & pix, InputIteratorContainerType & inputItContainer )
110  {
111  pix = std::complex<T>(inputItContainer[0].Get(), inputItContainer[1].Get());
112  ++( inputItContainer[0] );
113  ++( inputItContainer[1] );
114  }
115  template<typename TPixel>
116  void ComputeOutputPixel(TPixel & pix, InputIteratorContainerType & inputItContainer)
117  {
118  for ( unsigned int i = 0; i < this->GetNumberOfInputs(); i++ )
119  {
120  pix[i] = static_cast<typename NumericTraits<OutputPixelType>::ValueType >(inputItContainer[i].Get());
121  ++( inputItContainer[i] );
122  }
123  }
124 };
125 }
126 
127 #ifndef ITK_MANUAL_INSTANTIATION
128 #include "itkComposeImageFilter.hxx"
129 #endif
130 
131 #endif
void ComputeOutputPixel(TPixel &pix, InputIteratorContainerType &inputItContainer)
InputImageType::RegionType RegionType
void ComputeOutputPixel(std::complex< T > &pix, InputIteratorContainerType &inputItContainer)
void SetInput3(const InputImageType *image3)
virtual void ThreadedGenerateData(const RegionType &outputRegionForThread, ThreadIdType) override
ImageToImageFilter< TInputImage, TOutputImage > Superclass
SmartPointer< Self > Pointer
OutputImageType::PixelType OutputPixelType
Base class for all process objects that output image data.
virtual void BeforeThreadedGenerateData() override
DataObjectPointerArraySizeType GetNumberOfInputs() const
Get the size of the input container.
ComposeImageFilter combine several scalar images into a multicomponent image.
typedef(Concept::Convertible< InputPixelType, typename NumericTraits< OutputPixelType >::ValueType >) InputCovertibleToOutputCheck
A multi-dimensional iterator templated over image type that walks a region of pixels.
unsigned int ThreadIdType
Definition: itkIntTypes.h:159
void SetInput1(const InputImageType *image1)
void SetInput2(const InputImageType *image2)
std::vector< InputIteratorType > InputIteratorContainerType
Base class for filters that take an image as input and produce an image as output.
InputImageType::PixelType InputPixelType
Define additional traits for native types such as int or float.
SmartPointer< const Self > ConstPointer
#define itkConceptMacro(name, concept)
virtual void GenerateOutputInformation(void) override
static const unsigned int Dimension