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.
*
*=========================================================================*/

#pragma once
#ifndef _ITK_RECURSIVE_LINE_YVV_GAUSSIAN_IMAGE_FILTER_H_
#define _ITK_RECURSIVE_LINE_YVV_GAUSSIAN_IMAGE_FILTER_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:
  typedef RecursiveLineYvvGaussianImageFilter             Self;
  typedef InPlaceImageFilter< TInputImage, TOutputImage > Superclass;
  typedef SmartPointer< Self >                            Pointer;
  typedef SmartPointer< const Self >                      ConstPointer;

  itkNewMacro(Self);

  itkTypeMacro(RecursiveLineYvvGaussianImageFilter, InPlaceImageFilter);

  typedef typename TInputImage::Pointer      InputImagePointer;
  typedef typename TInputImage::ConstPointer InputImageConstPointer;

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

  typedef typename TOutputImage::RegionType OutputImageRegionType;

  typedef TInputImage InputImageType;

  typedef TOutputImage OutputImageType;

  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();
  virtual ~RecursiveLineYvvGaussianImageFilter() {}
  void PrintSelf(std::ostream & os, Indent indent) const;

  void BeforeThreadedGenerateData();

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

  virtual const ImageRegionSplitterBase * GetImageRegionSplitter(void) const;

  void EnlargeOutputRequestedRegion(DataObject *output);

  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:
  RecursiveLineYvvGaussianImageFilter(const Self &); //purposely not implemented
  void operator=(const Self &);                      //purposely not implemented

  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