itkTestingComparisonImageFilter.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 itkTestingComparisonImageFilter_h
#define itkTestingComparisonImageFilter_h

#include "itkArray.h"
#include "itkNumericTraits.h"
#include "itkImageToImageFilter.h"

namespace itk
{
namespace Testing
{
template< typename TInputImage, typename TOutputImage >
class ITK_TEMPLATE_EXPORT ComparisonImageFilter:
  public ImageToImageFilter< TInputImage, TOutputImage >
{
public:
  ITK_DISALLOW_COPY_AND_ASSIGN(ComparisonImageFilter);

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

  itkNewMacro(Self);

  itkTypeMacro(ComparisonImageFilter, ImageToImageFilter);

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

  itkSetInputMacro(ValidInput, InputImageType);

  itkSetInputMacro(TestInput, InputImageType);

  itkSetMacro(VerifyInputInformation, bool);
  itkGetConstMacro(VerifyInputInformation, bool);
  itkBooleanMacro(VerifyInputInformation);

  itkSetMacro(ToleranceRadius, int);
  itkGetConstMacro(ToleranceRadius, int);

  itkSetMacro(DifferenceThreshold, OutputPixelType);
  itkGetConstMacro(DifferenceThreshold, OutputPixelType);

  itkSetMacro(IgnoreBoundaryPixels, bool);
  itkGetConstMacro(IgnoreBoundaryPixels, bool);

  itkGetConstMacro(MinimumDifference, OutputPixelType);
  itkGetConstMacro(MaximumDifference, OutputPixelType);
  itkGetConstMacro(MeanDifference, RealType);
  itkGetConstMacro(TotalDifference, AccumulateType);
  itkGetConstMacro(NumberOfPixelsWithDifferences, SizeValueType);

protected:
  ComparisonImageFilter();
  ~ComparisonImageFilter() override = default;

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

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

  void DynamicThreadedGenerateData( const OutputImageRegionType & ) override
  {
    itkExceptionMacro("This class requires threadId so it must use classic multi-threading model");
  }

  void BeforeThreadedGenerateData() override;

  void AfterThreadedGenerateData() override;

  void VerifyInputInformation() ITKv5_CONST override;

  OutputPixelType m_DifferenceThreshold;

  RealType        m_MeanDifference;
  OutputPixelType m_MinimumDifference;
  OutputPixelType m_MaximumDifference;
  bool            m_VerifyInputInformation;

  AccumulateType m_TotalDifference;

  SizeValueType m_NumberOfPixelsWithDifferences;

  int m_ToleranceRadius;

  Array< AccumulateType >    m_ThreadDifferenceSum;
  Array< SizeValueType >     m_ThreadNumberOfPixels;

  Array< OutputPixelType >    m_ThreadMinimumDifference;
  Array< OutputPixelType >    m_ThreadMaximumDifference;

private:
  bool m_IgnoreBoundaryPixels;
};
} // end namespace Testing
} // end namespace itk

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


#endif