itkConvolutionImageFilter.h

Go to the documentation of this file.

/*=========================================================================
 *
 *  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 ITK_TEMPLATE_EXPORT ConvolutionImageFilter :
  public ConvolutionImageFilterBase< TInputImage, TKernelImage, TOutputImage >
{
public:
  ITK_DISALLOW_COPY_AND_ASSIGN(ConvolutionImageFilter);

  using Self = ConvolutionImageFilter;
  using Superclass = ConvolutionImageFilterBase< TInputImage, TOutputImage >;
  using Pointer = SmartPointer< Self >;
  using ConstPointer = SmartPointer< const Self >;

  itkNewMacro(Self);

  itkTypeMacro(ConvolutionImageFilter, ConvolutionImageFilterBase);

  static constexpr unsigned int ImageDimension = TInputImage::ImageDimension;

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

protected:
  ConvolutionImageFilter() = default;
  ~ConvolutionImageFilter() override = default;

  void GenerateInputRequestedRegion() override;

  void GenerateData() override;

  bool GetKernelNeedsPadding() const;

  KernelSizeType GetKernelPadSize() const;

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

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

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

#endif