itkConvolutionImageFilter.h

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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 __itkConvolutionImageFilter_h
#define __itkConvolutionImageFilter_h

#include "itkConvolutionImageFilterBase.h"

#include "itkProgressAccumulator.h"
#include "itkZeroFluxNeumannBoundaryCondition.h"

namespace itk
{
template< typename TInputImage, typename TKernelImage = TInputImage, typename TOutputImage = TInputImage >
class ConvolutionImageFilter :
  public ConvolutionImageFilterBase< TInputImage, TKernelImage, TOutputImage >
{
public:
  typedef ConvolutionImageFilter                                  Self;
  typedef ConvolutionImageFilterBase< TInputImage, TOutputImage > Superclass;
  typedef SmartPointer< Self >                                    Pointer;
  typedef SmartPointer< const Self >                              ConstPointer;

  itkNewMacro(Self);

  itkTypeMacro(ConvolutionImageFilter, ConvolutionImageFilterBase);

  itkStaticConstMacro(ImageDimension, unsigned int,
                      TInputImage::ImageDimension);

  typedef TInputImage                          InputImageType;
  typedef TOutputImage                         OutputImageType;
  typedef TKernelImage                         KernelImageType;
  typedef typename InputImageType::PixelType   InputPixelType;
  typedef typename OutputImageType::PixelType  OutputPixelType;
  typedef typename KernelImageType::PixelType  KernelPixelType;
  typedef typename InputImageType::IndexType   InputIndexType;
  typedef typename OutputImageType::IndexType  OutputIndexType;
  typedef typename KernelImageType::IndexType  KernelIndexType;
  typedef typename InputImageType::SizeType    InputSizeType;
  typedef typename OutputImageType::SizeType   OutputSizeType;
  typedef typename KernelImageType::SizeType   KernelSizeType;
  typedef typename InputImageType::RegionType  InputRegionType;
  typedef typename OutputImageType::RegionType OutputRegionType;
  typedef typename KernelImageType::RegionType KernelRegionType;

protected:
  ConvolutionImageFilter();
  ~ConvolutionImageFilter() {}

  virtual void GenerateInputRequestedRegion();

  void GenerateData();

  bool GetKernelNeedsPadding() const;

  KernelSizeType GetKernelPadSize() const;

  template< typename TImage >
  KernelSizeType GetKernelRadius(const TImage *kernelImage) const;

private:
  ConvolutionImageFilter(const Self &); //purposely not implemented
  void operator=(const Self &);         //purposely not implemented

  template< typename TImage >
  void ComputeConvolution( const TImage *kernelImage,
                           ProgressAccumulator *progress );
};
}

#ifndef ITK_MANUAL_INSTANTIATION
#include "itkConvolutionImageFilter.hxx"
#endif

#endif