itkComputeImageExtremaFilter.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 itkComputeImageExtremaFilter_h
#define itkComputeImageExtremaFilter_h
 
#include "itkStatisticsImageFilter.h"
#include "itkSpatialObject.h"
#include "itkImageMaskSpatialObject.h"
 
namespace itk
{
template< typename TInputImage >
class ComputeImageExtremaFilter :
  public StatisticsImageFilter< TInputImage >
{
public:
  typedef ComputeImageExtremaFilter                     Self;
  typedef StatisticsImageFilter< TInputImage >          Superclass;
  typedef SmartPointer< Self >                          Pointer;
  typedef SmartPointer< const Self >                    ConstPointer;
 
  itkNewMacro(Self);
 
  itkTypeMacro(ComputeImageExtremaFilter, StatisticsImageFilter);
 
  typedef typename TInputImage::Pointer InputImagePointer;
 
  typedef typename Superclass::RegionType RegionType;
  typedef typename Superclass::SizeType   SizeType;
  typedef typename Superclass::IndexType  IndexType;
  typedef typename Superclass::PixelType  PixelType;
  typedef typename TInputImage::PointType  PointType;
 
  itkStaticConstMacro( ImageDimension, unsigned int,
                      TInputImage::ImageDimension );
 
  typedef typename Superclass::RealType RealType;
 
  itkSetMacro( ImageRegion, RegionType );
  itkSetMacro( UseMask, bool );
 
  typedef SpatialObject< itkGetStaticConstMacro(ImageDimension) > ImageMaskType;
  typedef typename ImageMaskType::Pointer ImageMaskPointer;
  typedef typename ImageMaskType::ConstPointer ImageMaskConstPointer;
  itkSetConstObjectMacro( ImageMask, ImageMaskType );
  itkGetConstObjectMacro( ImageMask, ImageMaskType );
 
  typedef ImageMaskSpatialObject< itkGetStaticConstMacro(ImageDimension) > ImageSpatialMaskType;
  typedef typename ImageSpatialMaskType::Pointer ImageSpatialMaskPointer;
  typedef typename ImageSpatialMaskType::ConstPointer ImageSpatialMaskConstPointer;
  itkSetConstObjectMacro( ImageSpatialMask, ImageSpatialMaskType );
  itkGetConstObjectMacro( ImageSpatialMask, ImageSpatialMaskType );
 
protected:
  ComputeImageExtremaFilter();
  ~ComputeImageExtremaFilter() override {}
 
  void BeforeStreamedGenerateData() override;
 
  void AfterStreamedGenerateData() override;
 
  void ThreadedStreamedGenerateData(const RegionType &) override;
  virtual void ThreadedGenerateDataImageSpatialMask( const RegionType & );
  virtual void ThreadedGenerateDataImageMask( const RegionType & );
  virtual void SameGeometry();
  RegionType            m_ImageRegion;
  ImageMaskConstPointer m_ImageMask;
  ImageSpatialMaskConstPointer  m_ImageSpatialMask;
  bool                  m_UseMask;
  bool                  m_SameGeometry;
 
private:
  ComputeImageExtremaFilter( const Self & );
  void operator = ( const Self & );
 
  CompensatedSummation<RealType> m_ThreadSum{ 1 };
  CompensatedSummation<RealType> m_SumOfSquares{ 1 };
  SizeValueType m_Count{ 1 };
  PixelType     m_ThreadMin{ 1 };
  PixelType     m_ThreadMax{ 1 };
 
  std::mutex m_Mutex;
}; // end of class
} // end namespace itk
 
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkComputeImageExtremaFilter.hxx"
#endif
 
#endif