itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage > Class Template Reference
[Image Feature Extraction Filters]

#include <itkSignedDanielssonDistanceMapImageFilter.h>

Inheritance diagram for itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >:

[legend]Collaboration diagram for itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >:

[legend]List of all members.

Public Types
typedef SignedDanielssonDistanceMapImageFilter	Self
typedef ImageToImageFilter< TInputImage, TOutputImage >	Superclass
typedef SmartPointer< Self >	Pointer
typedef SmartPointer< const Self >	ConstPointer
typedef TInputImage	InputImageType
typedef TOutputImage	OutputImageType
typedef InputImageType::RegionType	RegionType
typedef RegionType::IndexType	IndexType
typedef InputImageType::OffsetType	OffsetType
typedef InputImageType::PixelType	PixelType
typedef RegionType::SizeType	SizeType
typedef Image< OffsetType, itkGetStaticConstMacro(InputImageDimension)	VectorImageType )
typedef InputImageType::ConstPointer	InputImagePointer
typedef OutputImageType::Pointer	OutputImagePointer
typedef VectorImageType::Pointer	VectorImagePointer
Public Member Functions
virtual const char *	GetNameOfClass () const
	itkStaticConstMacro (InputImageDimension, unsigned int, InputImageType::ImageDimension)
virtual void	SetSquaredDistance (bool _arg)
virtual const bool &	GetSquaredDistance ()
virtual void	SquaredDistanceOn ()
virtual void	SquaredDistanceOff ()
virtual void	SetUseImageSpacing (bool _arg)
virtual const bool &	GetUseImageSpacing ()
virtual void	UseImageSpacingOn ()
virtual void	UseImageSpacingOff ()
virtual void	SetInsideIsPositive (bool _arg)
virtual const bool &	GetInsideIsPositive ()
virtual void	InsideIsPositiveOn ()
virtual void	InsideIsPositiveOff ()
OutputImageType *	GetVoronoiMap (void)
OutputImageType *	GetDistanceMap (void)
VectorImageType *	GetVectorDistanceMap (void)
Static Public Member Functions
Pointer	New ()
Protected Member Functions
	SignedDanielssonDistanceMapImageFilter ()
virtual	~SignedDanielssonDistanceMapImageFilter ()
void	PrintSelf (std::ostream &os, Indent indent) const
void	GenerateData ()

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Detailed Description

template<class TInputImage, class TOutputImage>
class itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >

This class is parametrized over the type of the input image and the type of the output image.

This filter computes the distance map of the input image as an approximation with pixel accuracy to the Euclidean distance.

For purposes of evaluating the signed distance map, the input is assumed to be binary composed of pixels with value 0 and non-zero.

The inside is considered as having negative distances. Outside is treated as having positive distances. To change the convention, use the InsideIsPositive(bool) function.

As a convention, the distance is evaluated from the boundary of the ON pixels.

The filter returns

• A signed distance map with the approximation to the euclidean distance.
• A voronoi partition. (See itkDanielssonDistanceMapImageFilter)
• A vector map containing the component of the vector relating the current pixel with the closest point of the closest object to this pixel. Given that the components of the distance are computed in "pixels", the vector is represented by an itk::Offset. That is, physical coordinates are not used. (See itkDanielssonDistanceMapImageFilter)

This filter internally uses the DanielssonDistanceMap filter. This filter is N-dimensional.

See also:

itkDanielssonDistanceMapImageFilter

Definition at line 89 of file itkSignedDanielssonDistanceMapImageFilter.h.

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Member Typedef Documentation

template<class TInputImage, class TOutputImage> typedef SmartPointer<const Self> itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >::ConstPointer

Reimplemented from itk::ImageToImageFilter< TInputImage, TOutputImage >. Definition at line 97 of file itkSignedDanielssonDistanceMapImageFilter.h.

template<class TInputImage, class TOutputImage> typedef RegionType::IndexType itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >::IndexType

Type for the index of the input image. Definition at line 116 of file itkSignedDanielssonDistanceMapImageFilter.h.

template<class TInputImage, class TOutputImage> typedef InputImageType::ConstPointer itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >::InputImagePointer

Pointer Type for input image. Reimplemented from itk::ImageToImageFilter< TInputImage, TOutputImage >. Definition at line 136 of file itkSignedDanielssonDistanceMapImageFilter.h.

template<class TInputImage, class TOutputImage> typedef TInputImage itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >::InputImageType

Type for input image. Reimplemented from itk::ImageToImageFilter< TInputImage, TOutputImage >. Definition at line 106 of file itkSignedDanielssonDistanceMapImageFilter.h.

template<class TInputImage, class TOutputImage> typedef InputImageType::OffsetType itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >::OffsetType

Type for the index of the input image. Definition at line 119 of file itkSignedDanielssonDistanceMapImageFilter.h.

template<class TInputImage, class TOutputImage> typedef OutputImageType::Pointer itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >::OutputImagePointer

Pointer Type for the output image. Reimplemented from itk::ImageSource< TOutputImage >. Definition at line 139 of file itkSignedDanielssonDistanceMapImageFilter.h.

template<class TInputImage, class TOutputImage> typedef TOutputImage itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >::OutputImageType

Type for two of the three output images: the VoronoiMap and the DistanceMap. Reimplemented from itk::ImageSource< TOutputImage >. Definition at line 110 of file itkSignedDanielssonDistanceMapImageFilter.h.

template<class TInputImage, class TOutputImage> typedef InputImageType::PixelType itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >::PixelType

Type for the pixel type of the input image. Definition at line 122 of file itkSignedDanielssonDistanceMapImageFilter.h.

template<class TInputImage, class TOutputImage> typedef SmartPointer<Self> itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >::Pointer

Reimplemented from itk::ImageToImageFilter< TInputImage, TOutputImage >. Definition at line 96 of file itkSignedDanielssonDistanceMapImageFilter.h.

template<class TInputImage, class TOutputImage> typedef InputImageType::RegionType itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >::RegionType

Type for the region of the input image. Definition at line 113 of file itkSignedDanielssonDistanceMapImageFilter.h.

template<class TInputImage, class TOutputImage> typedef SignedDanielssonDistanceMapImageFilter itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >::Self

Standard class typedefs. Reimplemented from itk::ImageToImageFilter< TInputImage, TOutputImage >. Definition at line 94 of file itkSignedDanielssonDistanceMapImageFilter.h.

template<class TInputImage, class TOutputImage> typedef RegionType::SizeType itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >::SizeType

Type for the size of the input image. Definition at line 125 of file itkSignedDanielssonDistanceMapImageFilter.h.

template<class TInputImage, class TOutputImage> typedef ImageToImageFilter<TInputImage,TOutputImage> itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >::Superclass

Reimplemented from itk::ImageToImageFilter< TInputImage, TOutputImage >. Definition at line 95 of file itkSignedDanielssonDistanceMapImageFilter.h.

template<class TInputImage, class TOutputImage> typedef VectorImageType::Pointer itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >::VectorImagePointer

Pointer Type for the vector distance image. Definition at line 142 of file itkSignedDanielssonDistanceMapImageFilter.h.

template<class TInputImage, class TOutputImage> typedef Image< OffsetType, itkGetStaticConstMacro(InputImageDimension) itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >::VectorImageType)

Pointer Type for the vector distance image Definition at line 133 of file itkSignedDanielssonDistanceMapImageFilter.h.

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Constructor & Destructor Documentation

template<class TInputImage, class TOutputImage> itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >::SignedDanielssonDistanceMapImageFilter (   )  [protected]

template<class TInputImage, class TOutputImage> virtual itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >::~SignedDanielssonDistanceMapImageFilter (   )  [inline, protected, virtual]

Definition at line 197 of file itkSignedDanielssonDistanceMapImageFilter.h.

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Member Function Documentation

template<class TInputImage, class TOutputImage> void itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >::GenerateData (   )  [protected, virtual]

Compute Danielsson distance map and Voronoi Map. Reimplemented from itk::ImageSource< TOutputImage >.

template<class TInputImage, class TOutputImage> OutputImageType* itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >::GetDistanceMap (  void   )

Get Distance map image. The distance map is shown as a gray value image depending on the pixel type of the output image. Regarding the source image, background should be dark (gray value = 0) and object should have a gray value larger than 0. The minimal distance is calculated on the object frontier, and the output image gives for each pixel its minimal distance from the object (if there is more than one object the closest object is considered).

template<class TInputImage, class TOutputImage> virtual const bool& itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >::GetInsideIsPositive (   )  [virtual]

Get if the inside represents positive values in the signed distance map. See GetInsideIsPositive()

template<class TInputImage, class TOutputImage> virtual const char* itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >::GetNameOfClass (   )  const [virtual]

Run-time type information (and related methods). Reimplemented from itk::ImageToImageFilter< TInputImage, TOutputImage >.

template<class TInputImage, class TOutputImage> virtual const bool& itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >::GetSquaredDistance (   )  [virtual]

Get the distance squared.

template<class TInputImage, class TOutputImage> virtual const bool& itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >::GetUseImageSpacing (   )  [virtual]

Get whether spacing is used.

template<class TInputImage, class TOutputImage> VectorImageType* itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >::GetVectorDistanceMap (  void   )

Get vector field of distances.

template<class TInputImage, class TOutputImage> OutputImageType* itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >::GetVoronoiMap (  void   )

Get Voronoi Map This map shows for each pixel what object is closest to it. Each object should be labeled by a number (larger than 0), so the map has a value for each pixel corresponding to the label of the closest object.

template<class TInputImage, class TOutputImage> virtual void itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >::InsideIsPositiveOff (   )  [virtual]

template<class TInputImage, class TOutputImage> virtual void itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >::InsideIsPositiveOn (   )  [virtual]

Set if the inside represents positive values in the signed distance map. By convention ON pixels are treated as inside pixels. Default is true.

template<class TInputImage, class TOutputImage> itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >::itkStaticConstMacro (  InputImageDimension  , unsigned  int, InputImageType::ImageDimension  )

The dimension of the input image.

template<class TInputImage, class TOutputImage> Pointer itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >::New (   )  [static]

Method for creation through the object factory Reimplemented from itk::Object.

template<class TInputImage, class TOutputImage> void itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >::PrintSelf (  std::ostream &  os, Indent  indent )  const [protected, virtual]

Methods invoked by Print() to print information about the object including superclasses. Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes. Reimplemented from itk::ImageToImageFilter< TInputImage, TOutputImage >.

template<class TInputImage, class TOutputImage> virtual void itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >::SetInsideIsPositive (  bool  _arg  )  [virtual]

Set if the inside represents positive values in the signed distance map. By convention ON pixels are treated as inside pixels.

template<class TInputImage, class TOutputImage> virtual void itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >::SetSquaredDistance (  bool  _arg  )  [virtual]

Set if the distance should be squared.

template<class TInputImage, class TOutputImage> virtual void itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >::SetUseImageSpacing (  bool  _arg  )  [virtual]

Set if image spacing should be used in computing distances.

template<class TInputImage, class TOutputImage> virtual void itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >::SquaredDistanceOff (   )  [virtual]

template<class TInputImage, class TOutputImage> virtual void itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >::SquaredDistanceOn (   )  [virtual]

Set On/Off if the distance is squared.

template<class TInputImage, class TOutputImage> virtual void itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >::UseImageSpacingOff (   )  [virtual]

template<class TInputImage, class TOutputImage> virtual void itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >::UseImageSpacingOn (   )  [virtual]

Set On/Off whether spacing is used.

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The documentation for this class was generated from the following file:

• itkSignedDanielssonDistanceMapImageFilter.h

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