/usr/include/ITK-4.5/itkRegionConstrainedSubsampler.h is in libinsighttoolkit4-dev 4.5.0-3.
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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 __itkRegionConstrainedSubsampler_h
#define __itkRegionConstrainedSubsampler_h
#include "itkSubsamplerBase.h"
#include "itkImageRegion.h"
namespace itk {
namespace Statistics {
/** \class RegionConstrainedSubsampler
* \brief This an abstract subsampler that constrains subsamples
* to be contained within a given image region.
*
* This is an Abstract class that can not be instantiated.
* There are multiple subsamplers that derive from this class and
* provide specific implementations of subsampling strategies.
*
* This class is templatized over both the Sample and the Region
* with an assumed consistency between the Region and the way
* the Sample is generated.
*
* Use SetRegionConstraint(region) to provide the region
* constraint. All returned subsamples will be contained
* within this region. This assumes that the instance
* identifiers in the sample correspond to an offset
* computed with the provided region.
*
* \sa SubsamplerBase, SpatialNeighborSubsampler
* \sa GaussianRandomSpatialNeighborSubsampler
* \sa UniformRandomSpatialNeighborSubsampler
* \ingroup ITKStatistics
*/
template < typename TSample, typename TRegion >
class RegionConstrainedSubsampler : public SubsamplerBase<TSample>
{
public:
/** Standard class typedefs */
typedef RegionConstrainedSubsampler<TSample, TRegion> Self;
typedef SubsamplerBase<TSample> Superclass;
typedef typename Superclass::Baseclass Baseclass;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
/** Run-time type information (and related methods) */
itkTypeMacro(RegionConstrainedSubsampler, SubsamplerBase);
/** typedef alias for the source data container */
typedef TSample SampleType;
typedef typename SampleType::ConstPointer SampleConstPointer;
typedef typename TSample::MeasurementVectorType MeasurementVectorType;
typedef typename TSample::InstanceIdentifier InstanceIdentifier;
typedef Subsample<TSample> SubsampleType;
typedef typename SubsampleType::Pointer SubsamplePointer;
typedef typename SubsampleType::ConstIterator SubsampleConstIterator;
typedef typename SubsampleType::InstanceIdentifierHolder InstanceIdentifierHolder;
/** typedefs related to image region */
typedef TRegion RegionType;
typedef typename RegionType::IndexType IndexType;
typedef typename IndexType::IndexValueType IndexValueType;
typedef typename RegionType::SizeType SizeType;
/** Method to set the sample domain.
* This should correspond to the entire region of the input sample. */
void SetSampleRegion(const RegionType& region);
/** Method to get the sample domain. */
itkGetConstReferenceMacro( SampleRegion, RegionType );
/** Method to get the flag indicating that the sample region has been initialized */
itkGetConstReferenceMacro(SampleRegionInitialized, bool);
/** Method to set the region constraint.
* Any subsamples selected must ALSO be inside this region. */
void SetRegionConstraint(const RegionType& region);
/** Method to get the region constraint. */
itkGetConstReferenceMacro( RegionConstraint, RegionType );
/** Method to get the flag indicating that the region constraint has been initialized */
itkGetConstReferenceMacro(RegionConstraintInitialized, bool);
/** Main Search method that MUST be implemented by each subclass
* The Search method will find all points similar to query and return
* them as a Subsample. The definition of similar will be subclass-
* specific. And could mean spatial similarity or feature similarity
* etc. */
virtual void Search(const InstanceIdentifier& query,
SubsamplePointer& results) = 0;
protected:
/**
* Clone the current subsampler.
* This does a complete copy of the subsampler state
* to the new subsampler
*/
virtual typename LightObject::Pointer InternalClone() const;
RegionConstrainedSubsampler();
virtual ~RegionConstrainedSubsampler() {};
virtual void PrintSelf(std::ostream& os, Indent indent) const;
RegionType m_RegionConstraint;
bool m_RegionConstraintInitialized;
RegionType m_SampleRegion;
bool m_SampleRegionInitialized;
private:
RegionConstrainedSubsampler(const Self&); // purposely not implemented
void operator=(const Self&); // purposely not implemented
}; // end of class RegionConstrainedSubsampler
} // end of namespace Statistics
} // end of namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkRegionConstrainedSubsampler.hxx"
#endif
#endif
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