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/*========================================================================= |
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Program: Insight Segmentation & Registration Toolkit |
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Module: $RCSfile: itkDifferenceImageFilter.h.html,v $ |
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Language: C++ |
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Date: $Date: 2006/01/17 19:15:34 $ |
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Version: $Revision: 1.4 $ |
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Copyright (c) Insight Software Consortium. All rights reserved. |
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See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details. |
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This software is distributed WITHOUT ANY WARRANTY; without even |
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR |
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PURPOSE. See the above copyright notices for more information. |
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=========================================================================*/ |
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#ifndef __itkDifferenceImageFilter_h |
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#define __itkDifferenceImageFilter_h |
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#include "itkImageToImageFilter.h" |
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#include "itkNumericTraits.h" |
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#include "itkArray.h" |
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namespace itk |
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{ |
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/** \class DifferenceImageFilter |
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* \brief Implements pixel-wise comparison of two images. |
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* |
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* This filter is used by the testing system to compute the difference |
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* between a valid image and an image produced by the test. |
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* |
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* \ingroup IntensityImageFilters Multithreaded |
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*/ |
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template <class TInputImage, class TOutputImage> |
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class ITK_EXPORT DifferenceImageFilter : |
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****public ImageToImageFilter<TInputImage, TOutputImage> |
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{ |
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public: |
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/** Standard class typedefs. */ |
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typedef DifferenceImageFilter Self; |
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TDA |
typedef ImageToImageFilter<TInputImage,TOutputImage> Superclass; |
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TDA |
typedef SmartPointer<Self> Pointer; |
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TDA |
typedef SmartPointer<const Self> ConstPointer; |
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/** Method for creation through the object factory. */ |
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itkNewMacro(Self); |
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/** Run-time type information (and related methods). */ |
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itkTypeMacro(DifferenceImageFilter, ImageToImageFilter); |
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/** Some convenient typedefs. */ |
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typedef TInputImage InputImageType; |
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TDA |
typedef TOutputImage OutputImageType; |
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TDA |
typedef typename OutputImageType::PixelType OutputPixelType; |
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TDA |
typedef typename OutputImageType::RegionType OutputImageRegionType; |
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TDA |
typedef typename NumericTraits<OutputPixelType>::RealType RealType; |
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TDA |
typedef typename NumericTraits<RealType>::AccumulateType AccumulateType; |
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/** Set the valid image input. This will be input 0. */ |
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virtual void SetValidInput(const InputImageType* validImage); |
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/** Set the test image input. This will be input 1. */ |
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virtual void SetTestInput(const InputImageType* testImage); |
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/** Set/Get the maximum distance away to look for a matching pixel. |
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******Default is 0. */ |
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itkSetMacro(ToleranceRadius, int); |
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itkGetMacro(ToleranceRadius, int); |
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/** Set/Get the minimum threshold for pixels to be different. |
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******Default is 0. */ |
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itkSetMacro(DifferenceThreshold, OutputPixelType); |
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itkGetMacro(DifferenceThreshold, OutputPixelType); |
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/** Get parameters of the difference image after execution. */ |
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itkGetMacro(MeanDifference, RealType); |
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itkGetMacro(TotalDifference, AccumulateType); |
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protected: |
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DifferenceImageFilter(); |
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virtual ~DifferenceImageFilter() {} |
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void PrintSelf(std::ostream& os, Indent indent) const; |
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/** DifferenceImageFilter can be implemented as a multithreaded |
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* filter. Therefore, this implementation provides a |
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* ThreadedGenerateData() routine which is called for each |
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* processing thread. The output image data is allocated |
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* automatically by the superclass prior to calling |
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* ThreadedGenerateData(). ThreadedGenerateData can only write to |
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* the portion of the output image specified by the parameter |
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* "outputRegionForThread" |
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* |
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* \sa ImageToImageFilter::ThreadedGenerateData(), |
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* ImageToImageFilter::GenerateData() */ |
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void ThreadedGenerateData(const OutputImageRegionType& threadRegion, |
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int threadId); |
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void BeforeThreadedGenerateData(); |
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void AfterThreadedGenerateData(); |
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OutputPixelType m_DifferenceThreshold; |
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RealType m_MeanDifference; |
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AccumulateType m_TotalDifference; |
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int m_ToleranceRadius; |
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Array<AccumulateType> m_ThreadDifferenceSum; |
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private: |
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DifferenceImageFilter(const Self&); //purposely not implemented |
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void operator=(const Self&); //purposely not implemented |
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}; |
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} // end namespace itk |
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#ifndef ITK_MANUAL_INSTANTIATION |
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#include "itkDifferenceImageFilter.txx" |
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#endif |
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#endif |
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