ITK  5.2.0
Insight Toolkit
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itk::ContourExtractor2DImageFilter< TInputImage > Class Template Reference

#include <itkContourExtractor2DImageFilter.h>

+ Inheritance diagram for itk::ContourExtractor2DImageFilter< TInputImage >:
+ Collaboration diagram for itk::ContourExtractor2DImageFilter< TInputImage >:

Classes

class  ContourType
 
struct  VertexHash
 

Public Types

using ConstPointer = SmartPointer< const Self >
 
using InputImagePointer = typename InputImageType::Pointer
 
using InputImageType = TInputImage
 
using InputIndexType = typename InputImageType::IndexType
 
using InputOffsetType = typename InputImageType::OffsetType
 
using InputPixelType = typename InputImageType::PixelType
 
using InputRealType = typename NumericTraits< InputPixelType >::RealType
 
using InputRegionType = typename InputImageType::RegionType
 
using OutputPathPointer = typename OutputPathType::Pointer
 
using OutputPathType = PolyLineParametricPath< 2 >
 
using Pointer = SmartPointer< Self >
 
using Self = ContourExtractor2DImageFilter
 
using Superclass = ImageToPathFilter< InputImageType, OutputPathType >
 
using VertexListConstPointer = typename VertexListType::ConstPointer
 
using VertexListType = typename OutputPathType::VertexListType
 
using VertexType = typename OutputPathType::VertexType
 
- Public Types inherited from itk::ImageToPathFilter< TInputImage, PolyLineParametricPath< 2 > >
using ConstPointer = SmartPointer< const Self >
 
using InputImageConstPointer = typename InputImageType::ConstPointer
 
using InputImagePixelType = typename InputImageType::PixelType
 
using InputImagePointer = typename InputImageType::Pointer
 
using InputImageRegionType = typename InputImageType::RegionType
 
using InputImageType = TInputImage
 
using Pointer = SmartPointer< Self >
 
using Self = ImageToPathFilter
 
using Superclass = PathSource< PolyLineParametricPath< 2 > >
 
- Public Types inherited from itk::PathSource< PolyLineParametricPath< 2 > >
using ConstPointer = SmartPointer< const Self >
 
using DataObjectPointer = DataObject::Pointer
 
using OutputPathIndexType = typename OutputPathType::IndexType
 
using OutputPathInputType = typename OutputPathType::InputType
 
using OutputPathOffsetType = typename OutputPathType::OffsetType
 
using OutputPathOutputType = typename OutputPathType::OutputType
 
using OutputPathPointer = typename OutputPathType::Pointer
 
using OutputPathType = PolyLineParametricPath< 2 >
 
using Pointer = SmartPointer< Self >
 
using Self = PathSource
 
using Superclass = ProcessObject
 
using DataObjectPointerArraySizeType = ProcessObject::DataObjectPointerArraySizeType
 
- Public Types inherited from itk::ProcessObject
using ConstPointer = SmartPointer< const Self >
 
using DataObjectIdentifierType = DataObject::DataObjectIdentifierType
 
using DataObjectPointer = DataObject::Pointer
 
using DataObjectPointerArray = std::vector< DataObjectPointer >
 
using DataObjectPointerArraySizeType = DataObjectPointerArray::size_type
 
using MultiThreaderType = MultiThreaderBase
 
using NameArray = std::vector< DataObjectIdentifierType >
 
using Pointer = SmartPointer< Self >
 
using Self = ProcessObject
 
using Superclass = Object
 
- Public Types inherited from itk::Object
using ConstPointer = SmartPointer< const Self >
 
using Pointer = SmartPointer< Self >
 
using Self = Object
 
using Superclass = LightObject
 
- Public Types inherited from itk::LightObject
using ConstPointer = SmartPointer< const Self >
 
using Pointer = SmartPointer< Self >
 
using Self = LightObject
 

Public Member Functions

virtual ::itk::LightObject::Pointer CreateAnother () const
 
virtual const char * GetNameOfClass () const
 
- Public Member Functions inherited from itk::ImageToPathFilter< TInputImage, PolyLineParametricPath< 2 > >
const InputImageTypeGetInput ()
 
const InputImageTypeGetInput (unsigned int idx)
 
virtual void SetInput (const InputImageType *image)
 
virtual void SetInput (unsigned int, const TInputImage *image)
 
- Public Member Functions inherited from itk::PathSource< PolyLineParametricPath< 2 > >
virtual ::itk::LightObject::Pointer CreateAnother () const
 
OutputPathTypeGetOutput ()
 
OutputPathTypeGetOutput (unsigned int idx)
 
virtual void GraftOutput (OutputPathType *output)
 
virtual void GraftNthOutput (unsigned int idx, OutputPathType *output)
 
DataObjectPointer MakeOutput (DataObjectPointerArraySizeType idx) override
 
- Public Member Functions inherited from itk::ProcessObject
virtual void AbortGenerateDataOff ()
 
virtual void AbortGenerateDataOn ()
 
virtual void EnlargeOutputRequestedRegion (DataObject *)
 
virtual const bool & GetAbortGenerateData () const
 
DataObjectPointerArray GetIndexedInputs ()
 
DataObjectPointerArray GetIndexedOutputs ()
 
NameArray GetInputNames () const
 
DataObjectPointerArray GetInputs ()
 
DataObjectPointerArraySizeType GetNumberOfIndexedInputs () const
 
DataObjectPointerArraySizeType GetNumberOfIndexedOutputs () const
 
DataObjectPointerArraySizeType GetNumberOfInputs () const
 
DataObjectPointerArraySizeType GetNumberOfOutputs () const
 
virtual DataObjectPointerArraySizeType GetNumberOfValidRequiredInputs () const
 
NameArray GetOutputNames () const
 
DataObjectPointerArray GetOutputs ()
 
virtual float GetProgress () const
 
NameArray GetRequiredInputNames () const
 
bool HasInput (const DataObjectIdentifierType &key) const
 
bool HasOutput (const DataObjectIdentifierType &key) const
 
void IncrementProgress (float increment)
 
virtual DataObjectPointer MakeOutput (const DataObjectIdentifierType &)
 
virtual void PropagateRequestedRegion (DataObject *output)
 
virtual void ResetPipeline ()
 
virtual void SetAbortGenerateData (bool _arg)
 
virtual void Update ()
 
virtual void UpdateLargestPossibleRegion ()
 
virtual void UpdateOutputData (DataObject *output)
 
virtual void UpdateOutputInformation ()
 
void UpdateProgress (float progress)
 
virtual void SetReleaseDataFlag (bool flag)
 
virtual bool GetReleaseDataFlag () const
 
void ReleaseDataFlagOn ()
 
void ReleaseDataFlagOff ()
 
virtual void SetReleaseDataBeforeUpdateFlag (bool _arg)
 
virtual const bool & GetReleaseDataBeforeUpdateFlag () const
 
virtual void ReleaseDataBeforeUpdateFlagOn ()
 
virtual void ReleaseDataBeforeUpdateFlagOff ()
 
virtual void SetNumberOfWorkUnits (ThreadIdType _arg)
 
virtual const ThreadIdTypeGetNumberOfWorkUnits () const
 
MultiThreaderTypeGetMultiThreader () const
 
void SetMultiThreader (MultiThreaderType *threader)
 
virtual void PrepareOutputs ()
 
- Public Member Functions inherited from itk::Object
unsigned long AddObserver (const EventObject &event, Command *)
 
unsigned long AddObserver (const EventObject &event, Command *) const
 
virtual void DebugOff () const
 
virtual void DebugOn () const
 
CommandGetCommand (unsigned long tag)
 
bool GetDebug () const
 
MetaDataDictionaryGetMetaDataDictionary ()
 
const MetaDataDictionaryGetMetaDataDictionary () const
 
virtual ModifiedTimeType GetMTime () const
 
virtual const TimeStampGetTimeStamp () const
 
bool HasObserver (const EventObject &event) const
 
void InvokeEvent (const EventObject &)
 
void InvokeEvent (const EventObject &) const
 
virtual void Modified () const
 
void Register () const override
 
void RemoveAllObservers ()
 
void RemoveObserver (unsigned long tag)
 
void SetDebug (bool debugFlag) const
 
void SetReferenceCount (int) override
 
void UnRegister () const noexcept override
 
void SetMetaDataDictionary (const MetaDataDictionary &rhs)
 
void SetMetaDataDictionary (MetaDataDictionary &&rrhs)
 
virtual void SetObjectName (std::string _arg)
 
virtual const std::string & GetObjectName () const
 
- Public Member Functions inherited from itk::LightObject
virtual void Delete ()
 
virtual int GetReferenceCount () const
 
 itkCloneMacro (Self)
 
void Print (std::ostream &os, Indent indent=0) const
 

Static Public Member Functions

static Pointer New ()
 
- Static Public Member Functions inherited from itk::PathSource< PolyLineParametricPath< 2 > >
static Pointer New ()
 
- Static Public Member Functions inherited from itk::Object
static bool GetGlobalWarningDisplay ()
 
static void GlobalWarningDisplayOff ()
 
static void GlobalWarningDisplayOn ()
 
static Pointer New ()
 
static void SetGlobalWarningDisplay (bool flag)
 
- Static Public Member Functions inherited from itk::LightObject
static void BreakOnError ()
 
static Pointer New ()
 

Static Public Attributes

static constexpr unsigned int InputImageDimension = TInputImage::ImageDimension
 
- Static Public Attributes inherited from itk::ImageToPathFilter< TInputImage, PolyLineParametricPath< 2 > >
static constexpr unsigned int InputImageDimension
 
using ContourContainer = std::list< ContourType >
 
using ContourRef = typename ContourContainer::iterator
 
using VertexToContourMap = std::unordered_map< VertexType, ContourRef, VertexHash >
 
using VertexMapIterator = typename VertexToContourMap::iterator
 
using VertexContourRefPair = typename VertexToContourMap::value_type
 
InputRealType m_ContourValue
 
bool m_ReverseContourOrientation
 
bool m_VertexConnectHighPixels
 
bool m_UseCustomRegion
 
InputRegionType m_RequestedRegion
 
unsigned int m_NumberOfContoursCreated
 
ContourContainer m_Contours
 
VertexToContourMap m_ContourStarts
 
VertexToContourMap m_ContourEnds
 
virtual void SetReverseContourOrientation (bool _arg)
 
virtual const bool & GetReverseContourOrientation () const
 
virtual void ReverseContourOrientationOn ()
 
virtual void ReverseContourOrientationOff ()
 
virtual void SetVertexConnectHighPixels (bool _arg)
 
virtual const bool & GetVertexConnectHighPixels () const
 
virtual void VertexConnectHighPixelsOn ()
 
virtual void VertexConnectHighPixelsOff ()
 
void SetRequestedRegion (const InputRegionType region)
 
virtual const InputRegionTypeGetRequestedRegion () const
 
void ClearRequestedRegion ()
 
virtual void SetContourValue (InputRealType _arg)
 
virtual const InputRealTypeGetContourValue () const
 
 ContourExtractor2DImageFilter ()
 
 ~ContourExtractor2DImageFilter () override=default
 
void PrintSelf (std::ostream &os, Indent indent) const override
 
void GenerateData () override
 
void GenerateInputRequestedRegion () override
 
VertexType InterpolateContourPosition (InputPixelType fromValue, InputPixelType toValue, InputIndexType fromIndex, InputOffsetType toOffset)
 
void AddSegment (const VertexType from, const VertexType to)
 
void FillOutputs ()
 

Additional Inherited Members

- Protected Member Functions inherited from itk::ImageToPathFilter< TInputImage, PolyLineParametricPath< 2 > >
 ImageToPathFilter ()
 
void PrintSelf (std::ostream &os, Indent indent) const override
 
 ~ImageToPathFilter () override=default
 
- Protected Member Functions inherited from itk::PathSource< PolyLineParametricPath< 2 > >
 PathSource ()
 
 ~PathSource () override=default
 
void PrintSelf (std::ostream &os, Indent indent) const override
 
- Protected Member Functions inherited from itk::ProcessObject
 ProcessObject ()
 
 ~ProcessObject () override
 
DataObjectGetInput (const DataObjectIdentifierType &key)
 
const DataObjectGetInput (const DataObjectIdentifierType &key) const
 
DataObjectGetInput (DataObjectPointerArraySizeType idx)
 
const DataObjectGetInput (DataObjectPointerArraySizeType idx) const
 
virtual void SetInput (const DataObjectIdentifierType &key, DataObject *input)
 
virtual void SetNthInput (DataObjectPointerArraySizeType num, DataObject *input)
 
virtual void AddInput (DataObject *input)
 
virtual void PushBackInput (const DataObject *input)
 
virtual void PopBackInput ()
 
virtual void PushFrontInput (const DataObject *input)
 
virtual void PopFrontInput ()
 
virtual void RemoveInput (const DataObjectIdentifierType &key)
 
virtual void RemoveInput (DataObjectPointerArraySizeType)
 
DataObjectGetPrimaryInput ()
 
const DataObjectGetPrimaryInput () const
 
virtual void SetPrimaryInputName (const DataObjectIdentifierType &key)
 
virtual const char * GetPrimaryInputName () const
 
virtual void SetPrimaryInput (DataObject *input)
 
void SetNumberOfIndexedInputs (DataObjectPointerArraySizeType num)
 
virtual void SetNumberOfRequiredInputs (DataObjectPointerArraySizeType)
 
virtual const DataObjectPointerArraySizeTypeGetNumberOfRequiredInputs () const
 
bool RemoveRequiredInputName (const DataObjectIdentifierType &)
 
bool IsRequiredInputName (const DataObjectIdentifierType &) const
 
void SetRequiredInputNames (const NameArray &)
 
bool AddRequiredInputName (const DataObjectIdentifierType &)
 
bool AddRequiredInputName (const DataObjectIdentifierType &, DataObjectPointerArraySizeType idx)
 
void AddOptionalInputName (const DataObjectIdentifierType &)
 
void AddOptionalInputName (const DataObjectIdentifierType &, DataObjectPointerArraySizeType idx)
 
DataObjectGetOutput (const DataObjectIdentifierType &key)
 
const DataObjectGetOutput (const DataObjectIdentifierType &key) const
 
virtual void SetPrimaryOutputName (const DataObjectIdentifierType &key)
 
virtual const char * GetPrimaryOutputName () const
 
DataObjectGetOutput (DataObjectPointerArraySizeType idx)
 
const DataObjectGetOutput (DataObjectPointerArraySizeType idx) const
 
virtual void SetOutput (const DataObjectIdentifierType &key, DataObject *output)
 
virtual void RemoveOutput (const DataObjectIdentifierType &key)
 
DataObjectGetPrimaryOutput ()
 
const DataObjectGetPrimaryOutput () const
 
virtual void SetPrimaryOutput (DataObject *output)
 
virtual void SetNthOutput (DataObjectPointerArraySizeType num, DataObject *output)
 
virtual void AddOutput (DataObject *output)
 
virtual void RemoveOutput (DataObjectPointerArraySizeType idx)
 
virtual void SetNumberOfRequiredOutputs (DataObjectPointerArraySizeType _arg)
 
virtual const DataObjectPointerArraySizeTypeGetNumberOfRequiredOutputs () const
 
void SetNumberOfIndexedOutputs (DataObjectPointerArraySizeType num)
 
DataObjectIdentifierType MakeNameFromInputIndex (DataObjectPointerArraySizeType idx) const
 
DataObjectIdentifierType MakeNameFromOutputIndex (DataObjectPointerArraySizeType idx) const
 
DataObjectPointerArraySizeType MakeIndexFromInputName (const DataObjectIdentifierType &name) const
 
DataObjectPointerArraySizeType MakeIndexFromOutputName (const DataObjectIdentifierType &name) const
 
bool IsIndexedInputName (const DataObjectIdentifierType &) const
 
bool IsIndexedOutputName (const DataObjectIdentifierType &) const
 
virtual void VerifyPreconditions () ITKv5_CONST
 
virtual void VerifyInputInformation () ITKv5_CONST
 
virtual void GenerateOutputRequestedRegion (DataObject *output)
 
virtual void GenerateOutputInformation ()
 
virtual void PropagateResetPipeline ()
 
virtual void ReleaseInputs ()
 
virtual void CacheInputReleaseDataFlags ()
 
virtual void RestoreInputReleaseDataFlags ()
 
virtual bool GetThreaderUpdateProgress () const
 
virtual void ThreaderUpdateProgressOn ()
 
virtual void ThreaderUpdateProgressOff ()
 
virtual void SetThreaderUpdateProgress (bool arg)
 
- Protected Member Functions inherited from itk::Object
 Object ()
 
 ~Object () override
 
bool PrintObservers (std::ostream &os, Indent indent) const
 
virtual void SetTimeStamp (const TimeStamp &time)
 
- Protected Member Functions inherited from itk::LightObject
virtual LightObject::Pointer InternalClone () const
 
 LightObject ()
 
virtual void PrintHeader (std::ostream &os, Indent indent) const
 
virtual void PrintTrailer (std::ostream &os, Indent indent) const
 
virtual ~LightObject ()
 
- Static Protected Member Functions inherited from itk::ProcessObject
static constexpr float progressFixedToFloat (uint32_t fixed)
 
static uint32_t progressFloatToFixed (float f)
 
- Protected Attributes inherited from itk::ProcessObject
bool m_Updating
 
TimeStamp m_OutputInformationMTime
 
- Protected Attributes inherited from itk::LightObject
std::atomic< int > m_ReferenceCount
 

Detailed Description

template<typename TInputImage>
class itk::ContourExtractor2DImageFilter< TInputImage >

Computes a list of PolyLineParametricPath objects from the contours in a 2D image.

Uses the "marching squares" method to compute a the iso-valued contours of the input 2D image for a given intensity value. Multiple outputs may be produced because an image can have multiple contours at a given level, so it is advised to call GetNumberOfIndexedOutputs() and GetOutput(n) to retrieve all of the contours. The contour value to be extracted can be set with SetContourValue(). Image intensities will be linearly interpolated to provide sub-pixel resolution for the output contours.

The marching squares algorithm is a special case of the marching cubes algorithm (Lorensen, William and Harvey E. Cline. Marching Cubes: A High Resolution 3D Surface Construction Algorithm. Computer Graphics (SIGGRAPH 87 Proceedings) 21(4) July 1987, p. 163-170). A simple explanation is available here: http://users.polytech.unice.fr/~lingrand/MarchingCubes/algo.html

There is a single ambiguous case in the marching squares algorithm: if a given 2x2-pixel square has two high-valued and two low-valued pixels, each pair diagonally adjacent. (Where high- and low-valued is with respect to the contour value sought.) In this case, either the high-valued pixels can be connected into the same "object" (where groups of pixels encircled by a given contour are considered an object), or the low-valued pixels can be connected. This is the "face connected" versus "face + vertex connected" (or 4- versus 4-connected) distinction: high-valued pixels most be treated as one, and low-valued as the other. By default, high-valued pixels are treated as "face-connected" and low-valued pixels are treated as "face + vertex" connected. To reverse this, call VertexConnectHighPixelsOn();

Outputs are not guaranteed to be closed paths: contours which intersect the image edge will be left open. All other paths will be closed. (The closedness of a path can be tested by checking whether the beginning point is the same as the end point.)

Produced paths are oriented. Following the path from beginning to end, image intensity values lower than the contour value are to the left of the path and intensity values greater than the contour value are to the right. In other words, the image gradient at a path segment is (approximately) in the direct of that segment rotated right by 90 degrees, because the image intensity values increase from left-to-right across the segment. This means that the generated contours will circle clockwise around "hills" of above-contour-value intensity, and counter-clockwise around "depressions" of below-contour-value intensity. This convention can be reversed by calling ReverseContourOrientationOn().

By default the input image's largest possible region will be processed; call SetRequestedRegion() to process a different region, or ClearRequestedRegion() to revert to the default value. Note that the requested regions are usually set on the output; however since paths have no notion of a "region", this must be set at the filter level.

This class was contributed to the Insight Journal by Zachary Pincus. https://hdl.handle.net/1926/165

See also
Image
Path
PolyLineParametricPath
ITK Sphinx Examples:
Examples
SphinxExamples/src/Filtering/Path/ExtractContoursFromImage/Code.cxx.

Definition at line 99 of file itkContourExtractor2DImageFilter.h.

Member Typedef Documentation

◆ ConstPointer

template<typename TInputImage >
using itk::ContourExtractor2DImageFilter< TInputImage >::ConstPointer = SmartPointer<const Self>

Definition at line 116 of file itkContourExtractor2DImageFilter.h.

◆ ContourContainer

template<typename TInputImage >
using itk::ContourExtractor2DImageFilter< TInputImage >::ContourContainer = std::list<ContourType>
private

Control the orientation of the contours with reference to the image gradient. (See class documentation.)

Definition at line 237 of file itkContourExtractor2DImageFilter.h.

◆ ContourRef

template<typename TInputImage >
using itk::ContourExtractor2DImageFilter< TInputImage >::ContourRef = typename ContourContainer::iterator
private

Control the orientation of the contours with reference to the image gradient. (See class documentation.)

Definition at line 238 of file itkContourExtractor2DImageFilter.h.

◆ InputImagePointer

template<typename TInputImage >
using itk::ContourExtractor2DImageFilter< TInputImage >::InputImagePointer = typename InputImageType::Pointer

Image and path type alias support

Definition at line 125 of file itkContourExtractor2DImageFilter.h.

◆ InputImageType

template<typename TInputImage >
using itk::ContourExtractor2DImageFilter< TInputImage >::InputImageType = TInputImage

Convenient type alias for simplifying declarations.

Definition at line 109 of file itkContourExtractor2DImageFilter.h.

◆ InputIndexType

template<typename TInputImage >
using itk::ContourExtractor2DImageFilter< TInputImage >::InputIndexType = typename InputImageType::IndexType

Definition at line 127 of file itkContourExtractor2DImageFilter.h.

◆ InputOffsetType

template<typename TInputImage >
using itk::ContourExtractor2DImageFilter< TInputImage >::InputOffsetType = typename InputImageType::OffsetType

Definition at line 128 of file itkContourExtractor2DImageFilter.h.

◆ InputPixelType

template<typename TInputImage >
using itk::ContourExtractor2DImageFilter< TInputImage >::InputPixelType = typename InputImageType::PixelType

Definition at line 126 of file itkContourExtractor2DImageFilter.h.

◆ InputRealType

template<typename TInputImage >
using itk::ContourExtractor2DImageFilter< TInputImage >::InputRealType = typename NumericTraits<InputPixelType>::RealType

Real type associated to the input pixel type.

Definition at line 135 of file itkContourExtractor2DImageFilter.h.

◆ InputRegionType

template<typename TInputImage >
using itk::ContourExtractor2DImageFilter< TInputImage >::InputRegionType = typename InputImageType::RegionType

Definition at line 129 of file itkContourExtractor2DImageFilter.h.

◆ OutputPathPointer

template<typename TInputImage >
using itk::ContourExtractor2DImageFilter< TInputImage >::OutputPathPointer = typename OutputPathType::Pointer

Definition at line 130 of file itkContourExtractor2DImageFilter.h.

◆ OutputPathType

template<typename TInputImage >
using itk::ContourExtractor2DImageFilter< TInputImage >::OutputPathType = PolyLineParametricPath<2>

Definition at line 110 of file itkContourExtractor2DImageFilter.h.

◆ Pointer

template<typename TInputImage >
using itk::ContourExtractor2DImageFilter< TInputImage >::Pointer = SmartPointer<Self>

Definition at line 115 of file itkContourExtractor2DImageFilter.h.

◆ Self

template<typename TInputImage >
using itk::ContourExtractor2DImageFilter< TInputImage >::Self = ContourExtractor2DImageFilter

Standard class type aliases.

Definition at line 113 of file itkContourExtractor2DImageFilter.h.

◆ Superclass

template<typename TInputImage >
using itk::ContourExtractor2DImageFilter< TInputImage >::Superclass = ImageToPathFilter<InputImageType, OutputPathType>

Definition at line 114 of file itkContourExtractor2DImageFilter.h.

◆ VertexContourRefPair

template<typename TInputImage >
using itk::ContourExtractor2DImageFilter< TInputImage >::VertexContourRefPair = typename VertexToContourMap::value_type
private

Control the orientation of the contours with reference to the image gradient. (See class documentation.)

Definition at line 289 of file itkContourExtractor2DImageFilter.h.

◆ VertexListConstPointer

template<typename TInputImage >
using itk::ContourExtractor2DImageFilter< TInputImage >::VertexListConstPointer = typename VertexListType::ConstPointer

Definition at line 137 of file itkContourExtractor2DImageFilter.h.

◆ VertexListType

template<typename TInputImage >
using itk::ContourExtractor2DImageFilter< TInputImage >::VertexListType = typename OutputPathType::VertexListType

Definition at line 132 of file itkContourExtractor2DImageFilter.h.

◆ VertexMapIterator

template<typename TInputImage >
using itk::ContourExtractor2DImageFilter< TInputImage >::VertexMapIterator = typename VertexToContourMap::iterator
private

Control the orientation of the contours with reference to the image gradient. (See class documentation.)

Definition at line 288 of file itkContourExtractor2DImageFilter.h.

◆ VertexToContourMap

template<typename TInputImage >
using itk::ContourExtractor2DImageFilter< TInputImage >::VertexToContourMap = std::unordered_map<VertexType, ContourRef, VertexHash>
private

Control the orientation of the contours with reference to the image gradient. (See class documentation.)

Definition at line 287 of file itkContourExtractor2DImageFilter.h.

◆ VertexType

template<typename TInputImage >
using itk::ContourExtractor2DImageFilter< TInputImage >::VertexType = typename OutputPathType::VertexType

Definition at line 131 of file itkContourExtractor2DImageFilter.h.

Constructor & Destructor Documentation

◆ ContourExtractor2DImageFilter()

template<typename TInputImage >
itk::ContourExtractor2DImageFilter< TInputImage >::ContourExtractor2DImageFilter ( )
protected

Control the orientation of the contours with reference to the image gradient. (See class documentation.)

◆ ~ContourExtractor2DImageFilter()

template<typename TInputImage >
itk::ContourExtractor2DImageFilter< TInputImage >::~ContourExtractor2DImageFilter ( )
overrideprotecteddefault

Control the orientation of the contours with reference to the image gradient. (See class documentation.)

Member Function Documentation

◆ AddSegment()

template<typename TInputImage >
void itk::ContourExtractor2DImageFilter< TInputImage >::AddSegment ( const VertexType  from,
const VertexType  to 
)
private

Control the orientation of the contours with reference to the image gradient. (See class documentation.)

◆ ClearRequestedRegion()

template<typename TInputImage >
void itk::ContourExtractor2DImageFilter< TInputImage >::ClearRequestedRegion ( )

Control the orientation of the contours with reference to the image gradient. (See class documentation.)

◆ CreateAnother()

template<typename TInputImage >
virtual::itk::LightObject::Pointer itk::ContourExtractor2DImageFilter< TInputImage >::CreateAnother ( ) const
virtual

Create an object from an instance, potentially deferring to a factory. This method allows you to create an instance of an object that is exactly the same type as the referring object. This is useful in cases where an object has been cast back to a base class.

Reimplemented from itk::Object.

◆ FillOutputs()

template<typename TInputImage >
void itk::ContourExtractor2DImageFilter< TInputImage >::FillOutputs ( )
private

Control the orientation of the contours with reference to the image gradient. (See class documentation.)

◆ GenerateData()

template<typename TInputImage >
void itk::ContourExtractor2DImageFilter< TInputImage >::GenerateData ( )
overrideprotectedvirtual

Control the orientation of the contours with reference to the image gradient. (See class documentation.)

Reimplemented from itk::ProcessObject.

◆ GenerateInputRequestedRegion()

template<typename TInputImage >
void itk::ContourExtractor2DImageFilter< TInputImage >::GenerateInputRequestedRegion ( )
overrideprotectedvirtual

ContourExtractor2DImageFilter manually controls the input requested region via SetRequestedRegion and ClearRequestedRegion, so it must override the superclass method.

Reimplemented from itk::ProcessObject.

◆ GetContourValue()

template<typename TInputImage >
virtual const InputRealType& itk::ContourExtractor2DImageFilter< TInputImage >::GetContourValue ( ) const
virtual

Control the orientation of the contours with reference to the image gradient. (See class documentation.)

◆ GetNameOfClass()

template<typename TInputImage >
virtual const char* itk::ContourExtractor2DImageFilter< TInputImage >::GetNameOfClass ( ) const
virtual

Run-time type information (and related methods).

Reimplemented from itk::ImageToPathFilter< TInputImage, PolyLineParametricPath< 2 > >.

◆ GetRequestedRegion()

template<typename TInputImage >
virtual const InputRegionType& itk::ContourExtractor2DImageFilter< TInputImage >::GetRequestedRegion ( ) const
virtual

Control the orientation of the contours with reference to the image gradient. (See class documentation.)

◆ GetReverseContourOrientation()

template<typename TInputImage >
virtual const bool& itk::ContourExtractor2DImageFilter< TInputImage >::GetReverseContourOrientation ( ) const
virtual

Control the orientation of the contours with reference to the image gradient. (See class documentation.)

◆ GetVertexConnectHighPixels()

template<typename TInputImage >
virtual const bool& itk::ContourExtractor2DImageFilter< TInputImage >::GetVertexConnectHighPixels ( ) const
virtual

Control the orientation of the contours with reference to the image gradient. (See class documentation.)

◆ InterpolateContourPosition()

template<typename TInputImage >
VertexType itk::ContourExtractor2DImageFilter< TInputImage >::InterpolateContourPosition ( InputPixelType  fromValue,
InputPixelType  toValue,
InputIndexType  fromIndex,
InputOffsetType  toOffset 
)
private

Control the orientation of the contours with reference to the image gradient. (See class documentation.)

◆ New()

template<typename TInputImage >
static Pointer itk::ContourExtractor2DImageFilter< TInputImage >::New ( )
static

Method for creation through the object factory.

◆ PrintSelf()

template<typename TInputImage >
void itk::ContourExtractor2DImageFilter< TInputImage >::PrintSelf ( std::ostream &  os,
Indent  indent 
) const
overrideprotectedvirtual

Control the orientation of the contours with reference to the image gradient. (See class documentation.)

Reimplemented from itk::ProcessObject.

◆ ReverseContourOrientationOff()

template<typename TInputImage >
virtual void itk::ContourExtractor2DImageFilter< TInputImage >::ReverseContourOrientationOff ( )
virtual

Control the orientation of the contours with reference to the image gradient. (See class documentation.)

◆ ReverseContourOrientationOn()

template<typename TInputImage >
virtual void itk::ContourExtractor2DImageFilter< TInputImage >::ReverseContourOrientationOn ( )
virtual

Control the orientation of the contours with reference to the image gradient. (See class documentation.)

◆ SetContourValue()

template<typename TInputImage >
virtual void itk::ContourExtractor2DImageFilter< TInputImage >::SetContourValue ( InputRealType  _arg)
virtual

Set/Get the image intensity value that the contours should follow. This is the equivalent of an iso-value in Marching Squares.

◆ SetRequestedRegion()

template<typename TInputImage >
void itk::ContourExtractor2DImageFilter< TInputImage >::SetRequestedRegion ( const InputRegionType  region)

Control whether the largest possible input region is used, or if a custom requested region is to be used.

◆ SetReverseContourOrientation()

template<typename TInputImage >
virtual void itk::ContourExtractor2DImageFilter< TInputImage >::SetReverseContourOrientation ( bool  _arg)
virtual

Control the orientation of the contours with reference to the image gradient. (See class documentation.)

◆ SetVertexConnectHighPixels()

template<typename TInputImage >
virtual void itk::ContourExtractor2DImageFilter< TInputImage >::SetVertexConnectHighPixels ( bool  _arg)
virtual

Control whether high- or low-valued pixels are vertex-connected. Default is for low-valued pixels to be vertex-connected. (See class documentation.)

◆ VertexConnectHighPixelsOff()

template<typename TInputImage >
virtual void itk::ContourExtractor2DImageFilter< TInputImage >::VertexConnectHighPixelsOff ( )
virtual

Control the orientation of the contours with reference to the image gradient. (See class documentation.)

◆ VertexConnectHighPixelsOn()

template<typename TInputImage >
virtual void itk::ContourExtractor2DImageFilter< TInputImage >::VertexConnectHighPixelsOn ( )
virtual

Control the orientation of the contours with reference to the image gradient. (See class documentation.)

Member Data Documentation

◆ InputImageDimension

template<typename TInputImage >
constexpr unsigned int itk::ContourExtractor2DImageFilter< TInputImage >::InputImageDimension = TInputImage::ImageDimension
staticconstexpr

Extract dimension from input and output image.

Definition at line 106 of file itkContourExtractor2DImageFilter.h.

◆ m_ContourEnds

template<typename TInputImage >
VertexToContourMap itk::ContourExtractor2DImageFilter< TInputImage >::m_ContourEnds
private

Control the orientation of the contours with reference to the image gradient. (See class documentation.)

Definition at line 296 of file itkContourExtractor2DImageFilter.h.

◆ m_Contours

template<typename TInputImage >
ContourContainer itk::ContourExtractor2DImageFilter< TInputImage >::m_Contours
private

Control the orientation of the contours with reference to the image gradient. (See class documentation.)

Definition at line 292 of file itkContourExtractor2DImageFilter.h.

◆ m_ContourStarts

template<typename TInputImage >
VertexToContourMap itk::ContourExtractor2DImageFilter< TInputImage >::m_ContourStarts
private

Control the orientation of the contours with reference to the image gradient. (See class documentation.)

Definition at line 295 of file itkContourExtractor2DImageFilter.h.

◆ m_ContourValue

template<typename TInputImage >
InputRealType itk::ContourExtractor2DImageFilter< TInputImage >::m_ContourValue
private

Control the orientation of the contours with reference to the image gradient. (See class documentation.)

Definition at line 206 of file itkContourExtractor2DImageFilter.h.

◆ m_NumberOfContoursCreated

template<typename TInputImage >
unsigned int itk::ContourExtractor2DImageFilter< TInputImage >::m_NumberOfContoursCreated
private

Control the orientation of the contours with reference to the image gradient. (See class documentation.)

Definition at line 211 of file itkContourExtractor2DImageFilter.h.

◆ m_RequestedRegion

template<typename TInputImage >
InputRegionType itk::ContourExtractor2DImageFilter< TInputImage >::m_RequestedRegion
private

Control the orientation of the contours with reference to the image gradient. (See class documentation.)

Definition at line 210 of file itkContourExtractor2DImageFilter.h.

◆ m_ReverseContourOrientation

template<typename TInputImage >
bool itk::ContourExtractor2DImageFilter< TInputImage >::m_ReverseContourOrientation
private

Control the orientation of the contours with reference to the image gradient. (See class documentation.)

Definition at line 207 of file itkContourExtractor2DImageFilter.h.

◆ m_UseCustomRegion

template<typename TInputImage >
bool itk::ContourExtractor2DImageFilter< TInputImage >::m_UseCustomRegion
private

Control the orientation of the contours with reference to the image gradient. (See class documentation.)

Definition at line 209 of file itkContourExtractor2DImageFilter.h.

◆ m_VertexConnectHighPixels

template<typename TInputImage >
bool itk::ContourExtractor2DImageFilter< TInputImage >::m_VertexConnectHighPixels
private

Control the orientation of the contours with reference to the image gradient. (See class documentation.)

Definition at line 208 of file itkContourExtractor2DImageFilter.h.


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