itkRecursiveLineYvvGaussianImageFilter.h

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/*=========================================================================
 *
 *  Copyright Insight Software Consortium
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0.txt
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *=========================================================================*/

#ifndef itkRecursiveLineYvvGaussianImageFilter_h
#define itkRecursiveLineYvvGaussianImageFilter_h

#include "itkInPlaceImageFilter.h"
#include "itkNumericTraits.h"
#include "itkImageRegionSplitterDirection.h"

namespace itk
{
template< typename TInputImage, typename TOutputImage = TInputImage >
class ITK_EXPORT RecursiveLineYvvGaussianImageFilter:
  public         InPlaceImageFilter< TInputImage, TOutputImage >
{
public:
  ITK_DISALLOW_COPY_AND_ASSIGN(RecursiveLineYvvGaussianImageFilter);

  using Self = RecursiveLineYvvGaussianImageFilter;
  using Superclass = InPlaceImageFilter< TInputImage, TOutputImage >;
  using Pointer = SmartPointer< Self >;
  using ConstPointer = SmartPointer< const Self >;

  itkNewMacro(Self);

  itkTypeMacro(RecursiveLineYvvGaussianImageFilter, InPlaceImageFilter);

  using InputImagePointer = typename TInputImage::Pointer;
  using InputImageConstPointer = typename TInputImage::ConstPointer;

  using InputPixelType = typename TInputImage::PixelType;
        #ifdef WITH_DOUBLE
  using RealType = typename NumericTraits< InputPixelType >::RealType;
  using ScalarRealType = typename NumericTraits< InputPixelType >::ScalarRealType;
        #else
  using RealType = typename NumericTraits< InputPixelType >::FloatType;
  using ScalarRealType = typename NumericTraits< InputPixelType >::FloatType;
        #endif

  using OutputImageRegionType = typename TOutputImage::RegionType;

  using InputImageType = TInputImage;

  using OutputImageType = TOutputImage;

  itkGetConstMacro(Direction, unsigned int);

  itkSetMacro(Direction, unsigned int);

  void SetInputImage(const TInputImage *);

  const TInputImage * GetInputImage(void);

  itkSetMacro(NormalizeAcrossScale, bool);
  itkGetConstMacro(NormalizeAcrossScale, bool);

  itkGetConstMacro(Sigma, ScalarRealType);
  itkSetMacro(Sigma, ScalarRealType);
protected:
  RecursiveLineYvvGaussianImageFilter();
  ~RecursiveLineYvvGaussianImageFilter() override {}
  void PrintSelf(std::ostream & os, Indent indent) const override;

  void BeforeThreadedGenerateData() override;

  void ThreadedGenerateData(const OutputImageRegionType & outputRegionForThread, ThreadIdType threadId) override;

  const ImageRegionSplitterBase * GetImageRegionSplitter(void) const override;

  void EnlargeOutputRequestedRegion(DataObject *output) override;

  virtual void SetUp(ScalarRealType spacing);

  void FilterDataArray(RealType *outs, const RealType *data, RealType *scratch,
                       unsigned int ln);

protected:
  ScalarRealType m_B1;
  ScalarRealType m_B2;
  ScalarRealType m_B3;
  ScalarRealType m_B;

  // Initialization matrix for anti-causal pass
  vnl_matrix< ScalarRealType > m_MMatrix;
private:
  unsigned int m_Direction;

  ScalarRealType m_Sigma;

  bool                                  m_NormalizeAcrossScale;
  ImageRegionSplitterDirection::Pointer m_ImageRegionSplitter;
};
} // end namespace itk

#ifndef ITK_MANUAL_INSTANTIATION
#include "itkRecursiveLineYvvGaussianImageFilter.hxx"
#endif

#endif // itkRecursiveLineYvvGaussianImageFilter_h