itk::watershed::SegmentTable< TScalarType > Class Template Reference
[Watershed-based Segmentation Filters]

#include <itkWatershedSegmentTable.h>

Inheritance diagram for itk::watershed::SegmentTable:

[legend]Collaboration diagram for itk::watershed::SegmentTable< TScalarType >:

[legend]List of all members.

[NOHEADER]
typedef SegmentTable	Self
typedef DataObject	Superclass
typedef SmartPointer< Self >	Pointer
typedef SmartPointer< const Self >	ConstPointer
typedef TScalarType	ScalarType
virtual const char *	GetClassName () const
Pointer	New ()
[NOHEADER]
typedef std::list< edge_pair_t >	edge_list_t
typedef itk::hash_map< unsigned long, segment_t, itk::hash< unsigned long > >	HashMapType
typedef HashMapType::iterator	Iterator
typedef HashMapType::const_iterator	ConstIterator
typedef HashMapType::value_type	ValueType
typedef HashMapType::data_type	DataType
bool	Add (unsigned long a, const segment_t &t)
void	PruneEdgeLists (ScalarType maximum_saliency)
segment_t *	Lookup (const unsigned long a)
Public Methods
void	Erase (const unsigned long a)
void	Clear ()
bool	Empty () const
void	SortEdgeLists ()
HashMapType::size_type	Size () const
Iterator	Begin ()
Iterator	End ()
ConstIterator	Begin () const
ConstIterator	End () const
void	Copy (const Self &o)
const segment_t *	Lookup (const unsigned long a) const
bool	IsEntry (const unsigned long a) const
unsigned int	GetSegmentMemorySize () const
void	SetMaximumDepth (ScalarType s)
ScalarType	GetMaximumDepth () const
Protected Methods
	SegmentTable ()
virtual	~SegmentTable ()
void	PrintSelf (std::ostream &os, Indent indent) const
void	UpdateOutputInformation ()
bool	VerifyRequestedRegion ()
void	SetRequestedRegionToLargestPossibleRegion ()
bool	RequestedRegionIsOutsideOfTheBufferedRegion ()
void	SetRequestedRegion (itk::DataObject *)
Protected Attributes
HashMapType	m_HashMap
ScalarType	m_MaximumDepth

---

Detailed Description

template<class TScalarType>
class itk::watershed::SegmentTable< TScalarType >

A table for storing segmentation information in various component filters of the watershed segmentation algorithm. See itk::WatershedImageFilter for an overview.

This is a hash table that holds information about labeled segments in an image. Keys in the table are label values (unsigned long). Each entry in the table records the minimum value in the segment region and a list of all the adjacent segments in the image. The adjacency (edge) list also holds a saliency value (likelihood of merge) for each adjacency.

See also:

itk::WatershedImageFilter

Definition at line 50 of file itkWatershedSegmentTable.h.

---

Member Typedef Documentation

template<class TScalarType> typedef HashMapType::const_iterator itk::watershed::SegmentTable< TScalarType >::ConstIterator

Structure for storing lists of adjacencies (edges) and their saliencies. Definition at line 99 of file itkWatershedSegmentTable.h.

template<class TScalarType> typedef SmartPointer<const Self> itk::watershed::SegmentTable< TScalarType >::ConstPointer

Define smart pointers for this object Reimplemented from itk::DataObject. Definition at line 57 of file itkWatershedSegmentTable.h.

template<class TScalarType> typedef HashMapType::data_type itk::watershed::SegmentTable< TScalarType >::DataType

Structure for storing lists of adjacencies (edges) and their saliencies. Definition at line 101 of file itkWatershedSegmentTable.h.

template<class TScalarType> typedef std::list<edge_pair_t> itk::watershed::SegmentTable< TScalarType >::edge_list_t

Structure for storing lists of adjacencies (edges) and their saliencies. Definition at line 86 of file itkWatershedSegmentTable.h.

template<class TScalarType> typedef itk::hash_map<unsigned long, segment_t, itk::hash<unsigned long> > itk::watershed::SegmentTable< TScalarType >::HashMapType

Define the container type for the table Definition at line 97 of file itkWatershedSegmentTable.h.

template<class TScalarType> typedef HashMapType::iterator itk::watershed::SegmentTable< TScalarType >::Iterator

Structure for storing lists of adjacencies (edges) and their saliencies. Definition at line 98 of file itkWatershedSegmentTable.h.

template<class TScalarType> typedef SmartPointer<Self> itk::watershed::SegmentTable< TScalarType >::Pointer

Define smart pointers for this object Reimplemented from itk::DataObject. Definition at line 56 of file itkWatershedSegmentTable.h.

template<class TScalarType> typedef TScalarType itk::watershed::SegmentTable< TScalarType >::ScalarType

Define smart pointers for this object Definition at line 58 of file itkWatershedSegmentTable.h.

template<class TScalarType> typedef SegmentTable itk::watershed::SegmentTable< TScalarType >::Self

Define smart pointers for this object Reimplemented from itk::DataObject. Definition at line 54 of file itkWatershedSegmentTable.h.

template<class TScalarType> typedef DataObject itk::watershed::SegmentTable< TScalarType >::Superclass

Define smart pointers for this object Reimplemented from itk::DataObject. Definition at line 55 of file itkWatershedSegmentTable.h.

template<class TScalarType> typedef HashMapType::value_type itk::watershed::SegmentTable< TScalarType >::ValueType

Structure for storing lists of adjacencies (edges) and their saliencies. Definition at line 100 of file itkWatershedSegmentTable.h.

---

Constructor & Destructor Documentation

template<class TScalarType> itk::watershed::SegmentTable< TScalarType >::SegmentTable (    )  [inline, protected]

Definition at line 210 of file itkWatershedSegmentTable.h.

template<class TScalarType> virtual itk::watershed::SegmentTable< TScalarType >::~SegmentTable (    )  [inline, protected, virtual]

Definition at line 211 of file itkWatershedSegmentTable.h.

---

Member Function Documentation

template<class TScalarType> bool itk::watershed::SegmentTable< TScalarType >::Add (  unsigned long    a, const segment_t &    t )

Inserts a segment into the table

template<class TScalarType> ConstIterator itk::watershed::SegmentTable< TScalarType >::Begin (    )  const [inline]

Returns a const iterator pointing to the first element in the (unordered) table. Definition at line 175 of file itkWatershedSegmentTable.h.

template<class TScalarType> Iterator itk::watershed::SegmentTable< TScalarType >::Begin (    )  [inline]

Returns an iterator pointing to the first element in the (unordered) table. Definition at line 167 of file itkWatershedSegmentTable.h.

template<class TScalarType> void itk::watershed::SegmentTable< TScalarType >::Clear (    )  [inline]

Removes all the entries in the table. Definition at line 146 of file itkWatershedSegmentTable.h. References itk::hash_map< unsigned long, segment_t, itk::hash< unsigned long > >::empty(), and itk::watershed::SegmentTable< TScalarType >::m_HashMap.

template<class TScalarType> void itk::watershed::SegmentTable< TScalarType >::Copy (  const Self &    o )  [inline]

Copies the contents of another segment table into this segment table. This is really operator= in disguise, although superclass information is not copied. Definition at line 203 of file itkWatershedSegmentTable.h.

template<class TScalarType> bool itk::watershed::SegmentTable< TScalarType >::Empty (    )  const [inline]

Returns true if the table is empty and false if the table is not empty. Definition at line 151 of file itkWatershedSegmentTable.h. References itk::watershed::SegmentTable< TScalarType >::m_HashMap, and itk::hash_map< unsigned long, segment_t, itk::hash< unsigned long > >::size().

template<class TScalarType> ConstIterator itk::watershed::SegmentTable< TScalarType >::End (    )  const [inline]

Returns a const iterator pointing to one element past the last element in the (unordered table). Definition at line 179 of file itkWatershedSegmentTable.h.

template<class TScalarType> Iterator itk::watershed::SegmentTable< TScalarType >::End (    )  [inline]

Returns an iterator pointing to one element past the last element in the (unordered table). Definition at line 171 of file itkWatershedSegmentTable.h.

template<class TScalarType> void itk::watershed::SegmentTable< TScalarType >::Erase (  const unsigned long    a )  [inline]

Deletes an entry from the table. Definition at line 142 of file itkWatershedSegmentTable.h.

template<class TScalarType> virtual const char* itk::watershed::SegmentTable< TScalarType >::GetClassName (    )  const [virtual]

Define smart pointers for this object Reimplemented from itk::DataObject.

template<class TScalarType> ScalarType itk::watershed::SegmentTable< TScalarType >::GetMaximumDepth (    )  const [inline]

Set/Get the maximum depth of image on which this segment table is based. (Should set really be calling modified? jc 11/16/01) Definition at line 196 of file itkWatershedSegmentTable.h. References itk::watershed::SegmentTable< TScalarType >::m_HashMap, and itk::watershed::SegmentTable< TScalarType >::m_MaximumDepth.

template<class TScalarType> unsigned int itk::watershed::SegmentTable< TScalarType >::GetSegmentMemorySize (    )  const [inline]

Convenience methods for debugging Definition at line 182 of file itkWatershedSegmentTable.h.

template<class TScalarType> bool itk::watershed::SegmentTable< TScalarType >::IsEntry (  const unsigned long    a )  const [inline]

Returns TRUE if the entry key is found in the table. FALSE if the key is not found in the table. Definition at line 134 of file itkWatershedSegmentTable.h. References itk::hash_map< unsigned long, segment_t, itk::hash< unsigned long > >::erase(), and itk::watershed::SegmentTable< TScalarType >::m_HashMap.

template<class TScalarType> const segment_t* itk::watershed::SegmentTable< TScalarType >::Lookup (  const unsigned long    a )  const [inline]

Lookup a segment in the table. Returns a const pointer to the entry. On failure, returns a null pointer. Definition at line 124 of file itkWatershedSegmentTable.h.

template<class TScalarType> segment_t* itk::watershed::SegmentTable< TScalarType >::Lookup (  const unsigned long    a )  [inline]

Lookup a segment in the table. Returns a pointer to the entry. On failure, returns a null pointer. Definition at line 114 of file itkWatershedSegmentTable.h. References itk::watershed::SegmentTable< TScalarType >::m_HashMap.

template<class TScalarType> Pointer itk::watershed::SegmentTable< TScalarType >::New (    )  [static]

Define smart pointers for this object Reimplemented from itk::Object.

template<class TScalarType> void itk::watershed::SegmentTable< TScalarType >::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::DataObject.

template<class TScalarType> void itk::watershed::SegmentTable< TScalarType >::PruneEdgeLists (  ScalarType    maximum_saliency )

Iterates through the table and removes edges in every edge list whose saliencies are above the specified maximum. Requires that the edge lists have been sorted prior to calling this method.

template<class TScalarType> bool itk::watershed::SegmentTable< TScalarType >::RequestedRegionIsOutsideOfTheBufferedRegion (    )  [inline, protected, virtual]

Methods required of an itk DataObject Implements itk::DataObject. Definition at line 221 of file itkWatershedSegmentTable.h.

template<class TScalarType> void itk::watershed::SegmentTable< TScalarType >::SetMaximumDepth (  ScalarType    s )  [inline]

Set/Get the maximum depth of image on which this segment table is based. (Should set really be calling modified? jc 11/16/01) Definition at line 191 of file itkWatershedSegmentTable.h.

template<class TScalarType> void itk::watershed::SegmentTable< TScalarType >::SetRequestedRegion (  itk::DataObject *    )  [inline, protected, virtual]

Methods required of an itk DataObject Implements itk::DataObject. Definition at line 222 of file itkWatershedSegmentTable.h.

template<class TScalarType> void itk::watershed::SegmentTable< TScalarType >::SetRequestedRegionToLargestPossibleRegion (    )  [inline, protected, virtual]

Methods required of an itk DataObject Implements itk::DataObject. Definition at line 220 of file itkWatershedSegmentTable.h.

template<class TScalarType> HashMapType::size_type itk::watershed::SegmentTable< TScalarType >::Size (    )  const [inline]

Returns the number of entries in the table. Definition at line 159 of file itkWatershedSegmentTable.h.

template<class TScalarType> void itk::watershed::SegmentTable< TScalarType >::SortEdgeLists (    )

Sorts all the entries in the edge lists from least to greatest saliency.

template<class TScalarType> void itk::watershed::SegmentTable< TScalarType >::UpdateOutputInformation (    )  [protected, virtual]

Methods required of an itk DataObject Implements itk::DataObject.

template<class TScalarType> bool itk::watershed::SegmentTable< TScalarType >::VerifyRequestedRegion (    )  [inline, protected, virtual]

Methods required of an itk DataObject Implements itk::DataObject. Definition at line 219 of file itkWatershedSegmentTable.h.

---

Member Data Documentation

template<class TScalarType> HashMapType itk::watershed::SegmentTable< TScalarType >::m_HashMap [protected]

Definition at line 214 of file itkWatershedSegmentTable.h. Referenced by itk::watershed::SegmentTable< TScalarType >::Clear(), itk::watershed::SegmentTable< TScalarType >::Empty(), itk::watershed::SegmentTable< TScalarType >::GetMaximumDepth(), itk::watershed::SegmentTable< TScalarType >::IsEntry(), and itk::watershed::SegmentTable< TScalarType >::Lookup().

template<class TScalarType> ScalarType itk::watershed::SegmentTable< TScalarType >::m_MaximumDepth [protected]

Definition at line 215 of file itkWatershedSegmentTable.h. Referenced by itk::watershed::SegmentTable< TScalarType >::GetMaximumDepth().

---

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

• itkWatershedSegmentTable.h

---