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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 itkSampleToSubsampleFilter_h
#define itkSampleToSubsampleFilter_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
*
* \ingroup ITKStatistics
*/
template< typename TSample >
class ITK_TEMPLATE_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 */
using Superclass::SetInput;
virtual void SetInput(const SampleType *sample);
virtual const SampleType * GetInput() const;
/** Get the output subsample */
const OutputType * GetOutput() const;
protected:
SampleToSubsampleFilter();
virtual ~SampleToSubsampleFilter() ITK_OVERRIDE;
virtual void PrintSelf(std::ostream & os, Indent indent) const ITK_OVERRIDE;
/** 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
*/
typedef ProcessObject::DataObjectPointerArraySizeType DataObjectPointerArraySizeType;
using Superclass::MakeOutput;
virtual DataObjectPointer MakeOutput(DataObjectPointerArraySizeType idx) ITK_OVERRIDE;
private:
ITK_DISALLOW_COPY_AND_ASSIGN(SampleToSubsampleFilter);
}; // end of class
} // end of namespace Statistics
} // end of namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkSampleToSubsampleFilter.hxx"
#endif
#endif
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