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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
{
/** \class DifferenceOfGaussiansGradientImageFilter
* \brief Performs difference-of-gaussians gradient detection
*
* \ingroup ImageEnhancement
* \ingroup GradientFilters
*
* \ingroup ITKImageGradient
*/
template< typename TInputImage, typename TDataType >
class ITK_TEMPLATE_EXPORT DifferenceOfGaussiansGradientImageFilter:
public ImageToImageFilter< TInputImage,
Image< CovariantVector< TDataType, TInputImage::ImageDimension >,
TInputImage::ImageDimension > >
{
public:
/** Number of dimensions. */
itkStaticConstMacro(NDimensions, unsigned int, TInputImage::ImageDimension);
/** Standard class typedefs. */
typedef DifferenceOfGaussiansGradientImageFilter Self;
/** Output image typedef. The output image is always an n-dimensional
* image of n-dimensional vectors of doubles. */
typedef Image< CovariantVector< TDataType, itkGetStaticConstMacro(NDimensions) >, itkGetStaticConstMacro(NDimensions) >
TOutputImage;
/** Standard class typedefs. */
typedef ImageToImageFilter< TInputImage, TOutputImage > Superclass;
typedef SmartPointer< Self > Pointer;
typedef SmartPointer< const Self > ConstPointer;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Run-time type information (and related methods). */
itkTypeMacro(DifferenceOfGaussiansGradientImageFilter, ImageToImageFilter);
/** Image size typedef. */
typedef Size< itkGetStaticConstMacro(NDimensions) > SizeType;
/** Image index typedef. */
typedef typename TInputImage::IndexType IndexType;
/** Image pixel value typedef. */
typedef typename TInputImage::PixelType PixelType;
/** Typedef to describe the output image region type. */
typedef typename TInputImage::RegionType OutputImageRegionType;
/** Set/Get the member variables. */
itkGetConstMacro(Width, unsigned int);
itkSetMacro(Width, unsigned int);
#ifdef ITK_USE_CONCEPT_CHECKING
// Begin concept checking
itkConceptMacro( DataTypeHasNumericTraitsCheck,
( Concept::HasNumericTraits< TDataType > ) );
// End concept checking
#endif
protected:
DifferenceOfGaussiansGradientImageFilter();
virtual ~DifferenceOfGaussiansGradientImageFilter() ITK_OVERRIDE {}
void PrintSelf(std::ostream & os, Indent indent) const ITK_OVERRIDE;
/** Method for evaluating the implicit function over the image. */
void GenerateData() ITK_OVERRIDE;
private:
ITK_DISALLOW_COPY_AND_ASSIGN(DifferenceOfGaussiansGradientImageFilter);
unsigned int m_Width;
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkDifferenceOfGaussiansGradientImageFilter.hxx"
#endif
#endif
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