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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 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
* \ingroup ITKImageStatistics
*/
template< typename TInputImage >
class ITK_TEMPLATE_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. */
typedef ProcessObject::DataObjectPointerArraySizeType DataObjectPointerArraySizeType;
using Superclass::MakeOutput;
virtual DataObjectPointer MakeOutput(DataObjectPointerArraySizeType idx) ITK_OVERRIDE;
#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() ITK_OVERRIDE {}
void PrintSelf(std::ostream & os, Indent indent) const ITK_OVERRIDE;
/** Pass the input through unmodified. Do this by Grafting in the
AllocateOutputs method. */
void AllocateOutputs() ITK_OVERRIDE;
/** Initialize some accumulators before the threads run. */
void BeforeThreadedGenerateData() ITK_OVERRIDE;
/** Do final mean and variance computation from data accumulated in threads.
*/
void AfterThreadedGenerateData() ITK_OVERRIDE;
/** Multi-thread version GenerateData. */
void ThreadedGenerateData(const RegionType &
outputRegionForThread,
ThreadIdType threadId) ITK_OVERRIDE;
// Override since the filter needs all the data for the algorithm
void GenerateInputRequestedRegion() ITK_OVERRIDE;
// Override since the filter produces all of its output
void EnlargeOutputRequestedRegion(DataObject *data) ITK_OVERRIDE;
private:
ITK_DISALLOW_COPY_AND_ASSIGN(MinimumMaximumImageFilter);
std::vector< PixelType > m_ThreadMin;
std::vector< PixelType > m_ThreadMax;
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkMinimumMaximumImageFilter.hxx"
#endif
#endif
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