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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 __itkNeighborhoodFirstOrderStatisticsImageFilter_h
#define __itkNeighborhoodFirstOrderStatisticsImageFilter_h
#include "itkMovingHistogramImageFilter.h"
#include "itkTextureHistogram.h"
namespace itk
{
/**
* \class NeighborhoodFirstOrderStatisticsImageFilter
* \brief Compute first order statistics in a neighborhood at each pixel
*
* \ingroup ITK-TextureAnalysis
*/
template< class TInputImage, class TOutputImage, class TKernel >
class ITK_EXPORT NeighborhoodFirstOrderStatisticsImageFilter:
public MovingHistogramImageFilter< TInputImage,
TOutputImage,
TKernel,
typename Function::TextureHistogram< typename TInputImage::PixelType,
typename TOutputImage::PixelType > >
{
public:
/** Standard class typedefs. */
typedef NeighborhoodFirstOrderStatisticsImageFilter Self;
typedef MovingHistogramImageFilter< TInputImage, TOutputImage, TKernel,
typename Function::TextureHistogram< typename TInputImage::PixelType, typename TOutputImage::PixelType> > Superclass;
typedef SmartPointer< Self > Pointer;
typedef SmartPointer< const Self > ConstPointer;
/** Standard New method. */
itkNewMacro(Self);
/** Runtime information support. */
itkTypeMacro( NeighborhoodFirstOrderStatisticsImageFilter, MovingHistogramImageFilter );
/** Image related typedefs. */
typedef TInputImage InputImageType;
typedef TOutputImage OutputImageType;
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 typename Superclass::OutputImageRegionType OutputImageRegionType;
typedef typename TOutputImage::PixelType OutputPixelType;
/** Image related typedefs. */
itkStaticConstMacro( ImageDimension, unsigned int, TInputImage::ImageDimension );
protected:
unsigned int GetNumberOfOutputComponents() { return 8; }
NeighborhoodFirstOrderStatisticsImageFilter()
{
//this->m_Boundary = NumericTraits< PixelType >::max();
}
void GenerateOutputInformation() ITK_OVERRIDE
{
// this methods is overloaded so that if the output image is a
// VectorImage then the correct number of components are set.
Superclass::GenerateOutputInformation();
OutputImageType* output = this->GetOutput();
if ( !output )
{
return;
}
if ( output->GetNumberOfComponentsPerPixel() != this->GetNumberOfOutputComponents() )
{
output->SetNumberOfComponentsPerPixel( this->GetNumberOfOutputComponents() );
}
}
~NeighborhoodFirstOrderStatisticsImageFilter() {}
private:
NeighborhoodFirstOrderStatisticsImageFilter(const Self &); //purposely not implemented
void operator=(const Self &); //purposely not implemented
}; // end of class
} // end namespace itk
#endif
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