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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkSampleToSubsampleFilter.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 __itkSampleToSubsampleFilter_h
#define __itkSampleToSubsampleFilter_h
#include "itkSample.h"
#include "itkSubsample.h"
#include "itkProcessObject.h"
namespace itk {
namespace Statistics {
/** \class SampleToSubsampleFilter
* \brief Base class of filters intended to select subsamples from samples.
*
* This filter will take as input a Sample and produce as output a Subsample
* that derives from the original sample, and that refers to it.
*
* This is an Abstract class that can not be instantiated. There are multiple
* filters that derive from this class and provide specific implementations of
* subsampling methods.
*
* \sa Sample, Subsample
*
* \sa NeighborhoodSampler
*
*/
template< class TSample >
class ITK_EXPORT SampleToSubsampleFilter : public ProcessObject
{
public:
/** Standard class typedefs. */
typedef SampleToSubsampleFilter Self;
typedef ProcessObject Superclass;
typedef SmartPointer< Self > Pointer;
typedef SmartPointer< const Self > ConstPointer;
/** Standard macros */
itkTypeMacro(SampleToSubsampleFilter, ProcessObject);
/** Typedefs for Measurement vector, measurement, Instance Identifier,
* frequency, size, size element value from the template argument TSample */
typedef TSample SampleType;
typedef typename SampleType::MeasurementVectorType MeasurementVectorType;
typedef typename SampleType::MeasurementType MeasurementType;
typedef typename SampleType::InstanceIdentifier InstanceIdentifier;
/** Declare the output type */
typedef Subsample< SampleType > SubsampleType;
typedef SubsampleType OutputType;
/** Set/Get the input sample */
virtual void SetInput( const SampleType * sample );
virtual const SampleType * GetInput() const;
/** Get the output subsample */
const OutputType * GetOutput() const;
protected:
SampleToSubsampleFilter();
virtual ~SampleToSubsampleFilter();
void PrintSelf(std::ostream& os, Indent indent) const;
/** Make a DataObject of the correct type to used as the specified
* output. This method
* is automatically called when DataObject::DisconnectPipeline() is
* called.
* \sa ProcessObject
*/
virtual DataObjectPointer MakeOutput(unsigned int idx);
private:
SampleToSubsampleFilter(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
}; // end of class
} // end of namespace Statistics
} // end of namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkSampleToSubsampleFilter.txx"
#endif
#endif
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