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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 itkMiniPipelineSeparableImageFilter_h
#define itkMiniPipelineSeparableImageFilter_h
#include "itkBoxImageFilter.h"
namespace itk
{
/**
* \class MiniPipelineSeparableImageFilter
* \brief A separable filter for filter which are using radius
*
* This filter takes a non separable implementation of a neighborhood
* filter, and run it several times (one per dimension) to implement
* the same separable transform.
* This filter can be used with the filter for which the neighborhood is
* defined by the SetRadius() method, like the BoxImageFilter and its
* subcalsses.
*
*
* This code was contributed in the Insight Journal paper:
* "Efficient implementation of kernel filtering"
* by Beare R., Lehmann G
* https://hdl.handle.net/1926/555
* http://www.insight-journal.org/browse/publication/160
*
*
* \author Gaetan Lehmann
* \author Richard Beare
* \ingroup ITKReview
*/
template< typename TInputImage, typename TOutputImage, typename TFilter >
class MiniPipelineSeparableImageFilter:
public BoxImageFilter< TInputImage, TOutputImage >
{
public:
/** Standard class typedefs. */
typedef MiniPipelineSeparableImageFilter Self;
typedef BoxImageFilter< TInputImage, TOutputImage > Superclass;
typedef SmartPointer< Self > Pointer;
typedef SmartPointer< const Self > ConstPointer;
/** Standard New method. */
itkNewMacro(Self);
/** Runtime information support. */
itkTypeMacro(MiniPipelineSeparableImageFilter,
BoxImageFilter);
/** Image related typedefs. */
typedef TInputImage InputImageType;
typedef typename TInputImage::RegionType RegionType;
typedef typename TInputImage::SizeType SizeType;
typedef typename TInputImage::IndexType IndexType;
typedef typename TInputImage::PixelType PixelType;
typedef typename TInputImage::OffsetType OffsetType;
typedef TOutputImage OutputImageType;
typedef typename TOutputImage::PixelType OutputPixelType;
typedef TFilter FilterType;
typedef CastImageFilter< InputImageType, OutputImageType > CastType;
/** Image related typedefs. */
itkStaticConstMacro(ImageDimension, unsigned int, TInputImage::ImageDimension);
/** n-dimensional Kernel radius. */
typedef typename TInputImage::SizeType RadiusType;
virtual void SetRadius(const RadiusType &) ITK_OVERRIDE;
virtual void SetRadius(const SizeValueType & radius) ITK_OVERRIDE
{
// needed because of the overloading of the method
Superclass::SetRadius(radius);
}
virtual void Modified() const ITK_OVERRIDE;
virtual void SetNumberOfThreads(ThreadIdType nb) ITK_OVERRIDE;
protected:
MiniPipelineSeparableImageFilter();
~MiniPipelineSeparableImageFilter() {}
void GenerateData() ITK_OVERRIDE;
typename FilterType::Pointer m_Filters[ImageDimension];
typename CastType::Pointer m_Cast;
private:
MiniPipelineSeparableImageFilter(const Self &) ITK_DELETE_FUNCTION;
void operator=(const Self &) ITK_DELETE_FUNCTION;
};
}
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkMiniPipelineSeparableImageFilter.hxx"
#endif
#endif
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