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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkMinimumMaximumImageFilter.h
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) Insight Software Consortium. All rights reserved.
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#ifndef __itkMinimumMaximumImageFilter_h
#define __itkMinimumMaximumImageFilter_h
#include "itkImageToImageFilter.h"
#include "itkSimpleDataObjectDecorator.h"
#include <vector>
#include "itkNumericTraits.h"
namespace itk
{
/** \class MinimumMaximumImageFilter
* \brief Computes the minimum and the maximum intensity values of
* an image.
*
* It is templated over input image type only.
* This filter just copies the input image through this output to
* be included within the pipeline. The implementation uses the
* StatisticsImageFilter.
*
* \ingroup Operators
* \sa StatisticsImageFilter
*/
template <class TInputImage>
class ITK_EXPORT MinimumMaximumImageFilter :
public ImageToImageFilter< TInputImage, TInputImage>
{
public:
/** Extract dimension from input image. */
itkStaticConstMacro(InputImageDimension, unsigned int,
TInputImage::ImageDimension);
itkStaticConstMacro(OutputImageDimension, unsigned int,
TInputImage::ImageDimension);
/** Standard class typedefs. */
typedef MinimumMaximumImageFilter Self;
typedef ImageToImageFilter< TInputImage, TInputImage> Superclass;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
/** Image related typedefs. */
typedef typename TInputImage::Pointer InputImagePointer;
typedef typename TInputImage::RegionType RegionType;
typedef typename TInputImage::SizeType SizeType;
typedef typename TInputImage::IndexType IndexType;
typedef typename TInputImage::PixelType PixelType;
/** Smart Pointer type to a DataObject. */
typedef typename DataObject::Pointer DataObjectPointer;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Run-time type information (and related methods). */
itkTypeMacro(MinimumMaximumImageFilter, ImageToImageFilter);
/** Image typedef support. */
typedef TInputImage InputImageType;
/** Type of DataObjects used for scalar outputs */
typedef SimpleDataObjectDecorator<PixelType> PixelObjectType;
/** Return the computed Minimum. */
PixelType GetMinimum() const
{ return this->GetMinimumOutput()->Get(); }
PixelObjectType* GetMinimumOutput();
const PixelObjectType* GetMinimumOutput() const;
/** Return the computed Maximum. */
PixelType GetMaximum() const
{ return this->GetMaximumOutput()->Get(); }
PixelObjectType* GetMaximumOutput();
const PixelObjectType* GetMaximumOutput() const;
/** Make a DataObject of the correct type to be used as the specified
* output. */
virtual DataObjectPointer MakeOutput(unsigned int idx);
#ifdef ITK_USE_CONCEPT_CHECKING
/** Begin concept checking */
itkConceptMacro(LessThanComparableCheck,
(Concept::LessThanComparable<PixelType>));
itkConceptMacro(GreaterThanComparableCheck,
(Concept::GreaterThanComparable<PixelType>));
itkConceptMacro(OStreamWritableCheck,
(Concept::OStreamWritable<PixelType>));
/** End concept checking */
#endif
protected:
MinimumMaximumImageFilter();
virtual ~MinimumMaximumImageFilter() {}
void PrintSelf(std::ostream& os, Indent indent) const;
/** Pass the input through unmodified. Do this by Grafting in the AllocateOutputs method. */
void AllocateOutputs();
/** Initialize some accumulators before the threads run. */
void BeforeThreadedGenerateData ();
/** Do final mean and variance computation from data accumulated in threads. */
void AfterThreadedGenerateData ();
/** Multi-thread version GenerateData. */
void ThreadedGenerateData (const RegionType&
outputRegionForThread,
int threadId);
// Override since the filter needs all the data for the algorithm
void GenerateInputRequestedRegion();
// Override since the filter produces all of its output
void EnlargeOutputRequestedRegion(DataObject *data);
private:
MinimumMaximumImageFilter(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
std::vector<PixelType> m_ThreadMin;
std::vector<PixelType> m_ThreadMax;
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkMinimumMaximumImageFilter.txx"
#endif
#endif
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