SimpleITK  1.3.0.dev216
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itk::simple::RelabelComponentImageFilter Class Reference

Relabel the components in an image such that consecutive labels are used. More...

#include <sitkRelabelComponentImageFilter.h>

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

Public Types

typedef IntegerPixelIDTypeList PixelIDTypeList
 
typedef RelabelComponentImageFilter Self
 
- Public Types inherited from itk::simple::ImageFilter< 1 >
typedef ImageFilter Self
 
- Public Types inherited from itk::simple::ProcessObject
typedef ProcessObject Self
 

Public Member Functions

Image Execute (const Image &image1)
 
Image Execute (const Image &image1, uint64_t minimumObjectSize, bool sortByObjectSize)
 
uint64_t GetMinimumObjectSize () const
 
std::string GetName () const
 
uint32_t GetNumberOfObjects () const
 
uint32_t GetOriginalNumberOfObjects () const
 
std::vector< float > GetSizeOfObjectsInPhysicalUnits () const
 
std::vector< uint64_tGetSizeOfObjectsInPixels () const
 
bool GetSortByObjectSize () const
 
 RelabelComponentImageFilter ()
 
SelfSetMinimumObjectSize (uint64_t MinimumObjectSize)
 
SelfSetSortByObjectSize (bool SortByObjectSize)
 
SelfSortByObjectSizeOff ()
 
SelfSortByObjectSizeOn ()
 
std::string ToString () const
 
virtual ~RelabelComponentImageFilter ()
 
- Public Member Functions inherited from itk::simple::ImageFilter< 1 >
 ImageFilter ()
 
virtual ~ImageFilter ()=0
 
- Public Member Functions inherited from itk::simple::ProcessObject
virtual void Abort ()
 
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
 

Private Types

typedef Image(Self::* MemberFunctionType) (const Image &image1)
 

Private Member Functions

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

Private Attributes

nsstd::auto_ptr< detail::MemberFunctionFactory< MemberFunctionType > > m_MemberFactory
 
uint64_t m_MinimumObjectSize
 
uint32_t m_NumberOfObjects
 
uint32_t m_OriginalNumberOfObjects
 
std::vector< float > m_SizeOfObjectsInPhysicalUnits
 
std::vector< uint64_tm_SizeOfObjectsInPixels
 
bool m_SortByObjectSize
 

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 void SetGlobalDefaultNumberOfThreads (unsigned int n)
 
static unsigned int GetGlobalDefaultNumberOfThreads ()
 
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...
 
- 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) SITK_NOEXCEPT
 
virtual void PreUpdate (itk::ProcessObject *p)
 
virtual void RemoveITKObserver (EventCommand &e)
 
- Protected Member Functions inherited from itk::simple::NonCopyable
 NonCopyable ()
 
- Static Protected Member Functions inherited from itk::simple::ImageFilter< 1 >
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 TImageType >
static Image CastITKToImage (TImageType *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)
 
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)
 

Detailed Description

Relabel the components in an image such that consecutive labels are used.

RelabelComponentImageFilter remaps the labels associated with the objects in an image (as from the output of ConnectedComponentImageFilter ) such that the label numbers are consecutive with no gaps between the label numbers used. By default, the relabeling will also sort the labels based on the size of the object: the largest object will have label #1, the second largest will have label #2, etc. If two labels have the same size their initial order is kept. The sorting by size can be disabled using SetSortByObjectSize.

Label #0 is assumed to be the background and is left unaltered by the relabeling.

RelabelComponentImageFilter is typically used on the output of the ConnectedComponentImageFilter for those applications that want to extract the largest object or the "k" largest objects. Any particular object can be extracted from the relabeled output using a BinaryThresholdImageFilter . A group of objects can be extracted from the relabled output using a ThresholdImageFilter .

Once all the objects are relabeled, the application can query the number of objects and the size of each object. Object sizes are returned in a vector. The size of the background is not calculated. So the size of object #1 is GetSizeOfObjectsInPixels() [0], the size of object #2 is GetSizeOfObjectsInPixels() [1], etc.

If user sets a minimum object size, all objects with fewer pixels than the minimum will be discarded, so that the number of objects reported will be only those remaining. The GetOriginalNumberOfObjects method can be called to find out how many objects were present before the small ones were discarded.

RelabelComponentImageFilter can be run as an "in place" filter, where it will overwrite its output. The default is run out of place (or generate a separate output). "In place" operation can be controlled via methods in the superclass, InPlaceImageFilter::InPlaceOn() and InPlaceImageFilter::InPlaceOff() .

See also
ConnectedComponentImageFilter , BinaryThresholdImageFilter , ThresholdImageFilter
itk::simple::RelabelComponent for the procedural interface
itk::RelabelComponentImageFilter for the Doxygen on the original ITK class.

Definition at line 54 of file sitkRelabelComponentImageFilter.h.

Member Typedef Documentation

typedef Image(Self::* itk::simple::RelabelComponentImageFilter::MemberFunctionType) (const Image &image1)
private

Setup for member function dispatching

Definition at line 143 of file sitkRelabelComponentImageFilter.h.

Define the pixels types supported by this filter

Definition at line 66 of file sitkRelabelComponentImageFilter.h.

Definition at line 56 of file sitkRelabelComponentImageFilter.h.

Constructor & Destructor Documentation

virtual itk::simple::RelabelComponentImageFilter::~RelabelComponentImageFilter ( )
virtual

Destructor

itk::simple::RelabelComponentImageFilter::RelabelComponentImageFilter ( )

Default Constructor that takes no arguments and initializes default parameters

Member Function Documentation

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

Execute the filter on the input image

Image itk::simple::RelabelComponentImageFilter::Execute ( const Image image1,
uint64_t  minimumObjectSize,
bool  sortByObjectSize 
)

Execute the filter on the input image with the given parameters

template<class TImageType >
Image itk::simple::RelabelComponentImageFilter::ExecuteInternal ( const Image image1)
private
uint64_t itk::simple::RelabelComponentImageFilter::GetMinimumObjectSize ( ) const
inline

Get the caller-defined minimum size of an object in pixels. If the caller has not set the minimum, 0 will be returned, which is to be interpreted as meaning that no minimum exists, and all objects in the original label map will be passed through to the output.

Definition at line 78 of file sitkRelabelComponentImageFilter.h.

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

Name of this class

Implements itk::simple::ProcessObject.

Definition at line 126 of file sitkRelabelComponentImageFilter.h.

uint32_t itk::simple::RelabelComponentImageFilter::GetNumberOfObjects ( ) const
inline

Get the number of objects in the image. This information is only valid after the filter has executed.

This is a measurement. Its value is updated in the Execute methods, so the value will only be valid after an execution.

Definition at line 99 of file sitkRelabelComponentImageFilter.h.

uint32_t itk::simple::RelabelComponentImageFilter::GetOriginalNumberOfObjects ( ) const
inline

Get the original number of objects in the image before small objects were discarded. This information is only valid after the filter has executed. If the caller has not specified a minimum object size, OriginalNumberOfObjects is the same as NumberOfObjects.

This is a measurement. Its value is updated in the Execute methods, so the value will only be valid after an execution.

Definition at line 107 of file sitkRelabelComponentImageFilter.h.

std::vector<float> itk::simple::RelabelComponentImageFilter::GetSizeOfObjectsInPhysicalUnits ( ) const
inline

Get the size of each object in physical space (in units of pixel size). This information is only valid after the filter has executed. Size of the background is not calculated. Size of object #1 is GetSizeOfObjectsInPhysicalUnits() [0]. Size of object #2 is GetSizeOfObjectsInPhysicalUnits() [1]. Etc.

This is a measurement. Its value is updated in the Execute methods, so the value will only be valid after an execution.

Definition at line 115 of file sitkRelabelComponentImageFilter.h.

std::vector<uint64_t> itk::simple::RelabelComponentImageFilter::GetSizeOfObjectsInPixels ( ) const
inline

Get the size of each object in pixels. This information is only valid after the filter has executed. Size of the background is not calculated. Size of object #1 is GetSizeOfObjectsInPixels() [0]. Size of object #2 is GetSizeOfObjectsInPixels() [1]. Etc.

This is a measurement. Its value is updated in the Execute methods, so the value will only be valid after an execution.

Definition at line 123 of file sitkRelabelComponentImageFilter.h.

bool itk::simple::RelabelComponentImageFilter::GetSortByObjectSize ( ) const
inline

Controls whether the object labels are sorted by size. If false, initial order of labels is kept.

Definition at line 92 of file sitkRelabelComponentImageFilter.h.

Self& itk::simple::RelabelComponentImageFilter::SetMinimumObjectSize ( uint64_t  MinimumObjectSize)
inline

Set the minimum size in pixels for an object. All objects smaller than this size will be discarded and will not appear in the output label map. NumberOfObjects will count only the objects whose pixel counts are greater than or equal to the minimum size. Call GetOriginalNumberOfObjects to find out how many objects were present in the original label map.

Definition at line 73 of file sitkRelabelComponentImageFilter.h.

Self& itk::simple::RelabelComponentImageFilter::SetSortByObjectSize ( bool  SortByObjectSize)
inline

Controls whether the object labels are sorted by size. If false, initial order of labels is kept.

Definition at line 83 of file sitkRelabelComponentImageFilter.h.

Self& itk::simple::RelabelComponentImageFilter::SortByObjectSizeOff ( )
inline

Definition at line 87 of file sitkRelabelComponentImageFilter.h.

Self& itk::simple::RelabelComponentImageFilter::SortByObjectSizeOn ( )
inline

Set the value of SortByObjectSize to true or false respectfully.

Definition at line 86 of file sitkRelabelComponentImageFilter.h.

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

Print ourselves out

Reimplemented from itk::simple::ProcessObject.

Friends And Related Function Documentation

Definition at line 147 of file sitkRelabelComponentImageFilter.h.

Member Data Documentation

nsstd::auto_ptr<detail::MemberFunctionFactory<MemberFunctionType> > itk::simple::RelabelComponentImageFilter::m_MemberFactory
private

Definition at line 149 of file sitkRelabelComponentImageFilter.h.

uint64_t itk::simple::RelabelComponentImageFilter::m_MinimumObjectSize
private

Definition at line 152 of file sitkRelabelComponentImageFilter.h.

uint32_t itk::simple::RelabelComponentImageFilter::m_NumberOfObjects
private

Definition at line 155 of file sitkRelabelComponentImageFilter.h.

uint32_t itk::simple::RelabelComponentImageFilter::m_OriginalNumberOfObjects
private

Definition at line 157 of file sitkRelabelComponentImageFilter.h.

std::vector<float> itk::simple::RelabelComponentImageFilter::m_SizeOfObjectsInPhysicalUnits
private

Definition at line 159 of file sitkRelabelComponentImageFilter.h.

std::vector<uint64_t> itk::simple::RelabelComponentImageFilter::m_SizeOfObjectsInPixels
private

Definition at line 161 of file sitkRelabelComponentImageFilter.h.

bool itk::simple::RelabelComponentImageFilter::m_SortByObjectSize
private

Definition at line 153 of file sitkRelabelComponentImageFilter.h.


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