itkParabolicOpenCloseSafeBorderImageFilter.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 itkParabolicOpenCloseSafeBorderImageFilter_h
#define itkParabolicOpenCloseSafeBorderImageFilter_h

#include "itkParabolicOpenCloseImageFilter.h"
#include "itkCropImageFilter.h"
#include "itkConstantPadImageFilter.h"
#include "itkCastImageFilter.h"
#include "itkStatisticsImageFilter.h"

/* this class implements padding and cropping, so we don't just
* inherit from the OpenCloseImageFitler */

namespace itk
{
template< typename TInputImage,
          bool doOpen,
          typename TOutputImage = TInputImage >
class ITK_EXPORT ParabolicOpenCloseSafeBorderImageFilter:
  public ImageToImageFilter< TInputImage,
                             TOutputImage >
{
public:
  ITK_DISALLOW_COPY_AND_ASSIGN(ParabolicOpenCloseSafeBorderImageFilter);

  using Self = ParabolicOpenCloseSafeBorderImageFilter;
  using Superclass = ImageToImageFilter< TInputImage, TOutputImage >;
  using Pointer = SmartPointer< Self >;
  using ConstPointer = SmartPointer< const Self >;

  itkNewMacro(Self);

  itkTypeMacro(ParabolicOpenCloseSafeBorderImageFilter, ImageToImageFilter);

  using InputImageType = TInputImage;
  using OutputImageType = TOutputImage;
  using InputPixelType = typename TInputImage::PixelType;
  using RealType = typename NumericTraits< InputPixelType >::RealType;
  using ScalarRealType = typename NumericTraits< InputPixelType >::ScalarRealType;
  using OutputPixelType = typename TOutputImage::PixelType;

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

  using RadiusType = typename itk::FixedArray< ScalarRealType, TInputImage::ImageDimension >;

  static constexpr unsigned int ImageDimension = TInputImage::ImageDimension;

  // set all of the scales the same
  void SetScale(ScalarRealType scale)
  {
    RadiusType s = this->GetScale();

    this->m_MorphFilt->SetScale(scale);
    if ( s != this->GetScale() )
      {
      this->Modified();
      }
  }

  // different scale for each direction
  void SetScale(RadiusType scale)
  {
    if ( scale != this->GetScale() )
      {
      this->m_MorphFilt->SetScale(scale);
      this->Modified();
      }
  }

  //
  const RadiusType & GetScale() const
  {
    return ( this->m_MorphFilt->GetScale() );
  }

  void SetUseImageSpacing(bool B)
  {
    if ( B != this->GetUseImageSpacing() )
      {
      this->m_MorphFilt->SetUseImageSpacing(B);
      this->Modified();
      }
  }

  bool GetUseImageSpacing() const
  {
    return ( this->m_MorphFilt->GetUseImageSpacing() );
  }

  itkBooleanMacro(UseImageSpacing);

  itkSetMacro(SafeBorder, bool);
  itkGetConstReferenceMacro(SafeBorder, bool);
  itkBooleanMacro(SafeBorder);
  // should add the Get methods

  enum ParabolicAlgorithm {
    NOCHOICE = 0,     // decices based on scale - experimental
    CONTACTPOINT = 1, // sometimes faster at low scale
    INTERSECTION = 2  // default
    };
  itkSetMacro(ParabolicAlgorithm, int);
  itkGetConstReferenceMacro(ParabolicAlgorithm, int);

  void Modified() const override;

protected:
  void GenerateData() override;

  void PrintSelf(std::ostream & os, Indent indent) const override;

  using MorphFilterType = ParabolicOpenCloseImageFilter< TInputImage, doOpen, TOutputImage >;
  using PadFilterType = ConstantPadImageFilter< TInputImage, TInputImage >;
  using CropFilterType = CropImageFilter< TOutputImage, TOutputImage >;
  using StatsFilterType = StatisticsImageFilter< InputImageType >;

  ParabolicOpenCloseSafeBorderImageFilter()
  {
    m_MorphFilt = MorphFilterType::New();
    m_PadFilt = PadFilterType::New();
    m_CropFilt = CropFilterType::New();
    m_StatsFilt = StatsFilterType::New();
    m_SafeBorder = true;
    m_ParabolicAlgorithm = INTERSECTION;
  }

  ~ParabolicOpenCloseSafeBorderImageFilter() override {}
  int m_ParabolicAlgorithm;
private:
  typename MorphFilterType::Pointer m_MorphFilt;
  typename PadFilterType::Pointer   m_PadFilt;
  typename CropFilterType::Pointer  m_CropFilt;
  typename StatsFilterType::Pointer m_StatsFilt;

  bool m_SafeBorder;
  bool m_UseContactPoint;
  bool m_UseIntersection;
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkParabolicOpenCloseSafeBorderImageFilter.hxx"
#endif

#endif