itk/itkBSplineResampleImageFunctionWithLUT.h

   1 #ifndef __itkBSplineResampleImageFunctionWithLUT_h
   2 #define __itkBSplineResampleImageFunctionWithLUT_h
   3 #include "itkBSplineInterpolateImageFunctionWithLUT.h"
   4
   5 namespace itk
   6 {
   7 /** \class BSplineResampleImageFunctionWithLUT
   8  * \brief Resample image intensity from a BSpline coefficient image using a LUT.
   9  *
  10  * This class resample the image intensity at a non-integer position
  11  * from the input BSpline coefficient image using a LUT.
  12  *
  13  * Spline order may be from 0 to 5.
  14  *
  15  * In ITK, BSpline coefficient can be generated using a
  16  * BSplineDecompositionImageFilter. Using this image function in
  17  * conjunction with ResampleImageFunction allows the reconstruction
  18  * of the original image at different resolution and size.
  19  *
  20  * \sa BSplineInterpolateImageFunctionWithLUT
  21  * \sa BSplineDecompositionImageFilter
  22  * \sa ResampleImageFilter
  23  *
  24  * \ingroup ImageFunctions
  25  */
  26 template <class TImageType, class TCoordRep = float>
  27 class ITK_EXPORT BSplineResampleImageFunctionWithLUT :
  28     public BSplineInterpolateImageFunctionWithLUT<
  29   TImageType,TCoordRep,ITK_TYPENAME TImageType::PixelType >
  30 {
  31 public:
  32   /** Standard class typedefs. */
  33   typedef BSplineResampleImageFunctionWithLUT                   Self;
  34   typedef BSplineInterpolateImageFunctionWithLUT<
  35     TImageType,TCoordRep, ITK_TYPENAME TImageType::PixelType >  Superclass;
  36   typedef SmartPointer<Self>                                    Pointer;
  37   typedef SmartPointer<const Self>                              ConstPointer;
  38
  39   /** Run-time type information (and related methods). */
  40   itkTypeMacro(BSplineReconstructionImageFunction,
  41                BSplineInterpolateImageFunctionWithLUT);
  42
  43   /** New macro for creation of through a Smart Pointer */
  44   itkNewMacro( Self );
  45
  46   /** Set the input image representing the BSplineCoefficients */
  47   virtual void SetInputImage(const TImageType * inputData)
  48   {
  49     // bypass my superclass
  50     this->InterpolateImageFunction<TImageType,TCoordRep>::SetInputImage(inputData);
  51     this->m_Coefficients = inputData;
  52     if ( this->m_Coefficients.IsNotNull() )
  53       {
  54       this->m_DataLength = this->m_Coefficients->GetBufferedRegion().GetSize();
  55
  56       // JV specific for BLUT ( contains the call to UpdatePrecomputedWeights() )
  57       this->UpdateWeightsProperties();
  58       }
  59   }
  60
  61 protected:
  62   BSplineResampleImageFunctionWithLUT() {};
  63   virtual ~BSplineResampleImageFunctionWithLUT() {};
  64   void PrintSelf(std::ostream& os, Indent indent) const
  65   {
  66     this->Superclass::PrintSelf( os, indent );
  67   }
  68
  69 private:
  70   BSplineResampleImageFunctionWithLUT(const Self&);//purposely not implemented
  71 };
  72
  73 } // namespace itk
  74
  75
  76 #endif
  77