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itk::simple::LaplacianImageFilter Class Reference

This filter computes the Laplacian of a scalar-valued image. More...

#include <sitkLaplacianImageFilter.h>

+ Inheritance diagram for itk::simple::LaplacianImageFilter:
+ Collaboration diagram for itk::simple::LaplacianImageFilter:

Detailed Description

This filter computes the Laplacian of a scalar-valued image.

The Laplacian is an isotropic measure of the 2nd spatial derivative of an image. The Laplacian of an image highlights regions of rapid intensity change and is therefore often used for edge detection. Often, the Laplacian is applied to an image that has first been smoothed with a Gaussian filter in order to reduce its sensitivity to noise.

The Laplacian at each pixel location is computed by convolution with the itk::LaplacianOperator .
Inputs and Outputs
The input to this filter is a scalar-valued itk::Image of arbitrary dimension. The output is a scalar-valued itk::Image .
Warning
The pixel type of the input and output images must be of real type (float or double). ConceptChecking is used here to enforce the input pixel type. You will get a compilation error if the pixel type of the input and output images is not float or double.
See also
Image
Neighborhood
NeighborhoodOperator
NeighborhoodIterator
LaplacianOperator
itk::simple::Laplacian for the procedural interface
itk::LaplacianImageFilter for the Doxygen on the original ITK class.

Definition at line 66 of file sitkLaplacianImageFilter.h.

Public Types

using PixelIDTypeList = RealPixelIDTypeList
 
using Self = LaplacianImageFilter
 
- Public Types inherited from itk::simple::ImageFilter
using Self = ImageFilter
 
- Public Types inherited from itk::simple::ProcessObject
using Self = ProcessObject
 

Public Member Functions

Image Execute (const Image &image1)
 
std::string GetName () const
 
bool GetUseImageSpacing () const
 
 LaplacianImageFilter ()
 
SelfSetUseImageSpacing (bool UseImageSpacing)
 
std::string ToString () const
 
SelfUseImageSpacingOff ()
 
SelfUseImageSpacingOn ()
 
virtual ~LaplacianImageFilter ()
 
- Public Member Functions inherited from itk::simple::ImageFilter
 ImageFilter ()
 
virtual ~ImageFilter ()=0
 
- Public Member Functions inherited from itk::simple::ProcessObject
virtual void Abort ()
 
virtual int AddCommand (itk::simple::EventEnum event, const std::function< void()> &func)
 Directly add a callback to observe an event. More...
 
virtual int AddCommand (itk::simple::EventEnum event, itk::simple::Command &cmd)
 Add a Command Object to observer the event. More...
 
virtual float GetProgress () const
 An Active Measurement of the progress of execution. More...
 
virtual bool HasCommand (itk::simple::EventEnum event) const
 Query of this object has any registered commands for event. More...
 
 ProcessObject ()
 
virtual void RemoveAllCommands ()
 Remove all registered commands. More...
 
virtual ~ProcessObject ()
 
virtual void DebugOn ()
 
virtual void DebugOff ()
 
virtual bool GetDebug () const
 
virtual void SetDebug (bool debugFlag)
 
virtual void SetNumberOfThreads (unsigned int n)
 
virtual unsigned int GetNumberOfThreads () const
 
virtual void SetNumberOfWorkUnits (unsigned int n)
 
virtual unsigned int GetNumberOfWorkUnits () const
 

Private Types

using MemberFunctionType = Image(Self::*)(const Image &image1)
 

Private Member Functions

template<class TImageType >
Image ExecuteInternal (const Image &image1)
 

Private Attributes

std::unique_ptr< detail::MemberFunctionFactory< MemberFunctionType > > m_MemberFactory
 
bool m_UseImageSpacing {true}
 

Friends

struct detail::MemberFunctionAddressor< MemberFunctionType >
 

Additional Inherited Members

- Static Public Member Functions inherited from itk::simple::ProcessObject
static bool GetGlobalDefaultDebug ()
 
static void GlobalDefaultDebugOff ()
 
static void GlobalDefaultDebugOn ()
 
static void SetGlobalDefaultDebug (bool debugFlag)
 
static void GlobalWarningDisplayOn ()
 
static void GlobalWarningDisplayOff ()
 
static void SetGlobalWarningDisplay (bool flag)
 
static bool GetGlobalWarningDisplay ()
 
static double GetGlobalDefaultCoordinateTolerance ()
 Access the global tolerance to determine congruent spaces. More...
 
static void SetGlobalDefaultCoordinateTolerance (double)
 Access the global tolerance to determine congruent spaces. More...
 
static double GetGlobalDefaultDirectionTolerance ()
 Access the global tolerance to determine congruent spaces. More...
 
static void SetGlobalDefaultDirectionTolerance (double)
 Access the global tolerance to determine congruent spaces. More...
 
static bool SetGlobalDefaultThreader (const std::string &threader)
 Set/Get the default threader used for process objects. More...
 
static std::string GetGlobalDefaultThreader ()
 Set/Get the default threader used for process objects. More...
 
static void SetGlobalDefaultNumberOfThreads (unsigned int n)
 
static unsigned int GetGlobalDefaultNumberOfThreads ()
 Set/Get the default threader used for process objects. More...
 
- Protected Member Functions inherited from itk::simple::ImageFilter
void CheckImageMatchingDimension (const Image &image1, const Image &image2, const std::string &image2Name)
 
void CheckImageMatchingPixelType (const Image &image1, const Image &image2, const std::string &image2Name)
 
void CheckImageMatchingSize (const Image &image1, const Image &image2, const std::string &image2Name)
 
- Protected Member Functions inherited from itk::simple::ProcessObject
virtual unsigned long AddITKObserver (const itk::EventObject &, itk::Command *)
 
virtual itk::ProcessObjectGetActiveProcess ()
 
virtual void OnActiveProcessDelete ()
 
virtual void onCommandDelete (const itk::simple::Command *cmd) noexcept
 
virtual void PreUpdate (itk::ProcessObject *p)
 
virtual void RemoveITKObserver (EventCommand &e)
 
- Protected Member Functions inherited from itk::simple::NonCopyable
 NonCopyable ()=default
 
 NonCopyable (const NonCopyable &)=delete
 
NonCopyableoperator= (const NonCopyable &)=delete
 
- Static Protected Member Functions inherited from itk::simple::ImageFilter
template<class TImageType >
static void FixNonZeroIndex (TImageType *img)
 
- Static Protected Member Functions inherited from itk::simple::ProcessObject
template<class TImageType >
static TImageType::ConstPointer CastImageToITK (const Image &img)
 
template<class TPixelType , unsigned int VImageDimension, unsigned int VLength, template< typename, unsigned int > class TVector>
static Image CastITKToImage (itk::Image< TVector< TPixelType, VLength >, VImageDimension > *img)
 
template<unsigned int VImageDimension, unsigned int VLength, template< unsigned int > class TVector>
static Image CastITKToImage (itk::Image< TVector< VLength >, VImageDimension > *img)
 
template<class TImageType >
static Image CastITKToImage (TImageType *img)
 
static const itk::EventObjectGetITKEventObject (EventEnum e)
 
template<typename T >
static std::ostream & ToStringHelper (std::ostream &os, const T &v)
 
static std::ostream & ToStringHelper (std::ostream &os, const char &v)
 
static std::ostream & ToStringHelper (std::ostream &os, const signed char &v)
 
static std::ostream & ToStringHelper (std::ostream &os, const unsigned char &v)
 

Member Typedef Documentation

◆ MemberFunctionType

using itk::simple::LaplacianImageFilter::MemberFunctionType = Image (Self::*)( const Image& image1 )
private

Setup for member function dispatching

Definition at line 110 of file sitkLaplacianImageFilter.h.

◆ PixelIDTypeList

Define the pixels types supported by this filter

Definition at line 78 of file sitkLaplacianImageFilter.h.

◆ Self

Definition at line 68 of file sitkLaplacianImageFilter.h.

Constructor & Destructor Documentation

◆ ~LaplacianImageFilter()

virtual itk::simple::LaplacianImageFilter::~LaplacianImageFilter ( )
virtual

Destructor

◆ LaplacianImageFilter()

itk::simple::LaplacianImageFilter::LaplacianImageFilter ( )

Default Constructor that takes no arguments and initializes default parameters

Member Function Documentation

◆ Execute()

Image itk::simple::LaplacianImageFilter::Execute ( const Image image1)

Execute the filter on the input image

◆ ExecuteInternal()

template<class TImageType >
Image itk::simple::LaplacianImageFilter::ExecuteInternal ( const Image image1)
private

◆ GetName()

std::string itk::simple::LaplacianImageFilter::GetName ( ) const
inlinevirtual

Name of this class

Implements itk::simple::ProcessObject.

Definition at line 96 of file sitkLaplacianImageFilter.h.

◆ GetUseImageSpacing()

bool itk::simple::LaplacianImageFilter::GetUseImageSpacing ( ) const
inline

Set/Get whether or not the filter will use the spacing of the input image in its calculations

Definition at line 93 of file sitkLaplacianImageFilter.h.

◆ SetUseImageSpacing()

Self& itk::simple::LaplacianImageFilter::SetUseImageSpacing ( bool  UseImageSpacing)
inline

Set/Get whether or not the filter will use the spacing of the input image in its calculations

Definition at line 84 of file sitkLaplacianImageFilter.h.

◆ ToString()

std::string itk::simple::LaplacianImageFilter::ToString ( ) const
virtual

Print ourselves out

Reimplemented from itk::simple::ProcessObject.

◆ UseImageSpacingOff()

Self& itk::simple::LaplacianImageFilter::UseImageSpacingOff ( )
inline

Definition at line 88 of file sitkLaplacianImageFilter.h.

◆ UseImageSpacingOn()

Self& itk::simple::LaplacianImageFilter::UseImageSpacingOn ( )
inline

Set the value of UseImageSpacing to true or false respectfully.

Definition at line 87 of file sitkLaplacianImageFilter.h.

Friends And Related Function Documentation

◆ detail::MemberFunctionAddressor< MemberFunctionType >

Definition at line 114 of file sitkLaplacianImageFilter.h.

Member Data Documentation

◆ m_MemberFactory

std::unique_ptr<detail::MemberFunctionFactory<MemberFunctionType> > itk::simple::LaplacianImageFilter::m_MemberFactory
private

Definition at line 116 of file sitkLaplacianImageFilter.h.

◆ m_UseImageSpacing

bool itk::simple::LaplacianImageFilter::m_UseImageSpacing {true}
private

Definition at line 119 of file sitkLaplacianImageFilter.h.


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