itkDifferenceOfGaussiansGradientImageFilter.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 __itkDifferenceOfGaussiansGradientImageFilter_h
#define __itkDifferenceOfGaussiansGradientImageFilter_h

#include "itkImageToImageFilter.h"
#include "itkCovariantVector.h"

namespace itk
{
template< typename TInputImage, typename TDataType >
class ITK_EXPORT DifferenceOfGaussiansGradientImageFilter:
  public ImageToImageFilter< TInputImage,
                             Image< CovariantVector< TDataType, ::itk::GetImageDimension< TInputImage >::ImageDimension >,
                                    ::itk::GetImageDimension< TInputImage >::ImageDimension > >
{
public:
  itkStaticConstMacro(NDimensions, unsigned int, TInputImage::ImageDimension);

  typedef DifferenceOfGaussiansGradientImageFilter Self;

  typedef Image< CovariantVector< TDataType, itkGetStaticConstMacro(NDimensions) >, itkGetStaticConstMacro(NDimensions) >
  TOutputImage;

  typedef ImageToImageFilter< TInputImage, TOutputImage > Superclass;
  typedef SmartPointer< Self >                            Pointer;
  typedef SmartPointer< const Self >                      ConstPointer;

  itkNewMacro(Self);

  itkTypeMacro(DifferenceOfGaussiansGradientImageFilter, ImageToImageFilter);

  typedef Size< itkGetStaticConstMacro(NDimensions) > SizeType;

  typedef typename TInputImage::IndexType IndexType;

  typedef typename TInputImage::PixelType PixelType;

  typedef typename TInputImage::RegionType OutputImageRegionType;

  itkGetConstMacro(Width, unsigned int);
  itkSetMacro(Width, unsigned int);

#ifdef ITK_USE_CONCEPT_CHECKING

  itkConceptMacro( DataTypeHasNumericTraitsCheck,
                   ( Concept::HasNumericTraits< TDataType > ) );

#endif
protected:
  DifferenceOfGaussiansGradientImageFilter();
  virtual ~DifferenceOfGaussiansGradientImageFilter() {}
  void PrintSelf(std::ostream & os, Indent indent) const;

  void GenerateData();

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

  // implemented

  unsigned int m_Width;
};
} // end namespace itk

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

#endif