#include <itkHoughTransform2DLinesImageFilter.h>

Detailed Description

template<typename TInputPixelType, typename TOutputPixelType>
class itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >

Performs the Hough Transform to find 2D straight lines in a 2D image.

This filter derives from ImageToImageFilter. The input is an image, and all pixels above some threshold are those to be extracted. The output is the image of the accumulator. GetLines() returns a list of LinesSpatialObjects.

Lines are parameterized in the form:

\( R = x \cos(\theta) + y \sin(\theta) \) where \(R\) is the perpendicular distance from the origin and \(\theta\) the angle with the normal.

The output is the accumulator array:

The first dimension (X) represents the distance R from the corner to the line.
The second dimension (Y) represents the angle between the X axis and the normal to the line.

The size of the array depends on the AngleAxisSize that could be set (500 by default) for the angle axis. The distance axis depends on the size of the diagonal of the input image.

See also: LineSpatialObject

Examples: Examples/Segmentation/HoughTransform2DLinesImageFilter.cxx.

Definition at line 62 of file itkHoughTransform2DLinesImageFilter.h.

Inheritance diagram for itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >:

Collaboration diagram for itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >:

Public Types
using	ConstPointer = SmartPointer<const Self>

using	IndexType = typename InputImageType::IndexType

using	InputImageConstPointer = typename InputImageType::ConstPointer

using	InputImagePointer = typename InputImageType::Pointer

using	InputImageType = Image<TInputPixelType, 2>

using	LinePointer = typename LineType::Pointer

using	LinePointType = LineType::LinePointType

using	LinesListSizeType = typename LinesListType::size_type

using	LinesListType = std::list<LinePointer>

using	LineType = LineSpatialObject<2>

using	OutputImagePointer = typename OutputImageType::Pointer

using	OutputImageRegionType = typename InputImageType::RegionType

using	OutputImageType = Image<TOutputPixelType, 2>

using	PixelType = typename InputImageType::PixelType

using	Pointer = SmartPointer<Self>

using	Self = HoughTransform2DLinesImageFilter

using	Superclass = ImageToImageFilter<InputImageType, OutputImageType>

Public Types inherited from itk::ImageToImageFilter< Image< TInputPixelType, 2 >, Image< TOutputPixelType, 2 > >
using	ConstPointer

using	InputImageConstPointer

using	InputImagePixelType

using	InputImagePointer

using	InputImageRegionType

using	InputImageType

typedef typename OutputImageType::PixelType	OutputImagePixelType

using	OutputImagePixelType

typedef typename OutputImageType::RegionType	OutputImageRegionType

using	OutputImageRegionType

using	Pointer

using	Self

using	Superclass

Public Types inherited from itk::ImageSource< TOutputImage >
using	ConstPointer = SmartPointer<const Self>

using	DataObjectIdentifierType = Superclass::DataObjectIdentifierType

using	DataObjectPointer = DataObject::Pointer

using	DataObjectPointerArraySizeType = Superclass::DataObjectPointerArraySizeType

using	OutputImagePixelType = typename OutputImageType::PixelType

using	OutputImagePointer = typename OutputImageType::Pointer

using	OutputImageRegionType = typename OutputImageType::RegionType

using	OutputImageType = TOutputImage

using	Pointer = SmartPointer<Self>

using	Self = ImageSource

using	Superclass = ProcessObject

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

void	GenerateData () override

LinesListType &	GetLines ()

virtual OutputImageType *	GetModifiableSimplifyAccumulator ()

const char *	GetNameOfClass () const override

virtual const OutputImageType *	GetSimplifyAccumulator () const

void	Simplify ()


virtual void	SetThreshold (double _arg)

virtual double	GetThreshold () const


virtual void	SetAngleResolution (double _arg)

virtual double	GetAngleResolution () const


virtual void	SetNumberOfLines (LinesListSizeType _arg)

virtual LinesListSizeType	GetNumberOfLines () const


virtual void	SetDiscRadius (double _arg)

virtual double	GetDiscRadius () const


virtual void	SetVariance (double _arg)

virtual double	GetVariance () const

Public Member Functions inherited from itk::ImageToImageFilter< Image< TInputPixelType, 2 >, Image< TOutputPixelType, 2 > >
const InputImageType *	GetInput () const

const InputImageType *	GetInput () const

const InputImageType *	GetInput (unsigned int idx) const

const InputImageType *	GetInput (unsigned int idx) const

const char *	GetNameOfClass () const override

const char *	GetNameOfClass () const override

void	PopBackInput () override

void	PopBackInput () override

void	PopFrontInput () override

void	PopFrontInput () override

virtual void	PushBackInput (const InputImageType *input)

virtual void	PushBackInput (const InputImageType *input)

virtual void	PushFrontInput (const InputImageType *input)

virtual void	PushFrontInput (const InputImageType *input)

virtual void	SetInput (const InputImageType *input)

virtual void	SetInput (const InputImageType *input)

virtual void	SetInput (unsigned int, const Image< TInputPixelType, 2 > *image)

virtual void	SetInput (unsigned int, const Image< TInputPixelType, 2 > *image)

virtual void	SetCoordinateTolerance (double _arg)

virtual double	GetCoordinateTolerance () const

virtual void	SetCoordinateTolerance (double _arg)

virtual double	GetCoordinateTolerance () const

virtual void	SetDirectionTolerance (double _arg)

virtual double	GetDirectionTolerance () const

virtual void	SetDirectionTolerance (double _arg)

virtual double	GetDirectionTolerance () const

Public Member Functions inherited from itk::ImageSource< TOutputImage >
OutputImageType *	GetOutput (unsigned int idx)

OutputImageType *	GetOutput ()

const OutputImageType *	GetOutput () const

virtual void	GraftOutput (DataObject *graft)

virtual void	GraftOutput (const DataObjectIdentifierType &key, DataObject *graft)

virtual void	GraftNthOutput (unsigned int idx, DataObject *graft)

ProcessObject::DataObjectPointer	MakeOutput (ProcessObject::DataObjectPointerArraySizeType idx) override

ProcessObject::DataObjectPointer	MakeOutput (const ProcessObject::DataObjectIdentifierType &) override

Public Member Functions inherited from itk::ProcessObject
virtual void	AbortGenerateDataOff ()

virtual void	AbortGenerateDataOn ()

virtual const bool &	GetAbortGenerateData () const

DataObjectPointerArray	GetIndexedInputs ()

DataObjectPointerArray	GetIndexedOutputs ()

NameArray	GetInputNames () const

DataObjectPointerArray	GetInputs ()

MultiThreaderType *	GetMultiThreader () const

const char *	GetNameOfClass () const override

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 void	PrepareOutputs ()

virtual void	PropagateRequestedRegion (DataObject *output)

virtual void	ResetPipeline ()

virtual void	SetAbortGenerateData (bool _arg)

void	SetMultiThreader (MultiThreaderType *threader)

virtual void	Update ()

virtual void	UpdateLargestPossibleRegion ()

virtual void	UpdateOutputData (DataObject *output)

virtual void	UpdateOutputInformation ()

void	UpdateProgress (float progress)

virtual void	SetReleaseDataFlag (bool val)

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 ThreadIdType &	GetNumberOfWorkUnits () const

Public Member Functions inherited from itk::Object
unsigned long	AddObserver (const EventObject &event, Command *cmd) const

unsigned long	AddObserver (const EventObject &event, std::function< void(const EventObject &)> function) const

LightObject::Pointer	CreateAnother () const override

virtual void	DebugOff () const

virtual void	DebugOn () const

Command *	GetCommand (unsigned long tag)

bool	GetDebug () const

MetaDataDictionary &	GetMetaDataDictionary ()

const MetaDataDictionary &	GetMetaDataDictionary () const

virtual ModifiedTimeType	GetMTime () const

virtual const TimeStamp &	GetTimeStamp () 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) const

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
Pointer	Clone () const

virtual void	Delete ()

virtual int	GetReferenceCount () const

void	Print (std::ostream &os, Indent indent=0) const

Static Public Member Functions
static Pointer	New ()

Static Public Member Functions inherited from itk::ImageToImageFilter< Image< TInputPixelType, 2 >, Image< TOutputPixelType, 2 > >
static double	GetGlobalDefaultCoordinateTolerance ()

static double	GetGlobalDefaultCoordinateTolerance ()

static double	GetGlobalDefaultDirectionTolerance ()

static double	GetGlobalDefaultDirectionTolerance ()

static void	SetGlobalDefaultCoordinateTolerance (double)

static void	SetGlobalDefaultCoordinateTolerance (double)

static void	SetGlobalDefaultDirectionTolerance (double)

static void	SetGlobalDefaultDirectionTolerance (double)

Static Public Member Functions inherited from itk::Object
static bool	GetGlobalWarningDisplay ()

static void	GlobalWarningDisplayOff ()

static void	GlobalWarningDisplayOn ()

static Pointer	New ()

static void	SetGlobalWarningDisplay (bool val)

Static Public Member Functions inherited from itk::LightObject
static void	BreakOnError ()

static Pointer	New ()

Protected Member Functions
void	EnlargeOutputRequestedRegion (DataObject *output) override

void	GenerateInputRequestedRegion () override

void	GenerateOutputInformation () override

	HoughTransform2DLinesImageFilter ()

void	PrintSelf (std::ostream &os, Indent indent) const override

	~HoughTransform2DLinesImageFilter () override=default

Protected Member Functions inherited from itk::ImageToImageFilter< Image< TInputPixelType, 2 >, Image< TOutputPixelType, 2 > >
virtual void	CallCopyInputRegionToOutputRegion (OutputImageRegionType &destRegion, const InputImageRegionType &srcRegion)

virtual void	CallCopyInputRegionToOutputRegion (OutputImageRegionType &destRegion, const InputImageRegionType &srcRegion)

virtual void	CallCopyOutputRegionToInputRegion (InputImageRegionType &destRegion, const OutputImageRegionType &srcRegion)

virtual void	CallCopyOutputRegionToInputRegion (InputImageRegionType &destRegion, const OutputImageRegionType &srcRegion)

void	GenerateInputRequestedRegion () override

void	GenerateInputRequestedRegion () override

	ImageToImageFilter ()

	ImageToImageFilter ()

void	PrintSelf (std::ostream &os, Indent indent) const override

void	PrintSelf (std::ostream &os, Indent indent) const override

void	VerifyInputInformation () const override

void	VerifyInputInformation () const override

	~ImageToImageFilter () override=default

	~ImageToImageFilter () override=default

Protected Member Functions inherited from itk::ImageSource< TOutputImage >
virtual void	AfterThreadedGenerateData ()

virtual void	AllocateOutputs ()

virtual void	BeforeThreadedGenerateData ()

void	ClassicMultiThread (ThreadFunctionType callbackFunction)

void	GenerateData () override

virtual const ImageRegionSplitterBase *	GetImageRegionSplitter () const

	ImageSource ()

virtual unsigned int	SplitRequestedRegion (unsigned int i, unsigned int pieces, OutputImageRegionType &splitRegion)

	~ImageSource () override=default

virtual void	ThreadedGenerateData (const OutputImageRegionType &region, ThreadIdType threadId)

virtual void	DynamicThreadedGenerateData (const OutputImageRegionType &outputRegionForThread)

virtual bool	GetDynamicMultiThreading () const

virtual void	SetDynamicMultiThreading (bool _arg)

virtual void	DynamicMultiThreadingOn ()

virtual void	DynamicMultiThreadingOff ()

Protected Member Functions inherited from itk::ProcessObject
virtual void	AddInput (DataObject *input)

void	AddOptionalInputName (const DataObjectIdentifierType &)

void	AddOptionalInputName (const DataObjectIdentifierType &, DataObjectPointerArraySizeType idx)

virtual void	AddOutput (DataObject *output)

bool	AddRequiredInputName (const DataObjectIdentifierType &)

bool	AddRequiredInputName (const DataObjectIdentifierType &, DataObjectPointerArraySizeType idx)

virtual void	CacheInputReleaseDataFlags ()

virtual void	GenerateOutputRequestedRegion (DataObject *output)

DataObject *	GetInput (const DataObjectIdentifierType &key)

const DataObject *	GetInput (const DataObjectIdentifierType &key) const

virtual const DataObjectPointerArraySizeType &	GetNumberOfRequiredInputs () const

virtual const DataObjectPointerArraySizeType &	GetNumberOfRequiredOutputs () const

bool	IsIndexedInputName (const DataObjectIdentifierType &) const

bool	IsIndexedOutputName (const DataObjectIdentifierType &) const

bool	IsRequiredInputName (const DataObjectIdentifierType &) const

DataObjectPointerArraySizeType	MakeIndexFromInputName (const DataObjectIdentifierType &name) const

DataObjectPointerArraySizeType	MakeIndexFromOutputName (const DataObjectIdentifierType &name) const

DataObjectIdentifierType	MakeNameFromInputIndex (DataObjectPointerArraySizeType idx) const

DataObjectIdentifierType	MakeNameFromOutputIndex (DataObjectPointerArraySizeType idx) const

void	PrintSelf (std::ostream &os, Indent indent) const override

	ProcessObject ()

virtual void	PropagateResetPipeline ()

virtual void	PushBackInput (const DataObject *input)

virtual void	PushFrontInput (const DataObject *input)

virtual void	ReleaseInputs ()

virtual void	RemoveInput (const DataObjectIdentifierType &key)

virtual void	RemoveInput (DataObjectPointerArraySizeType)

virtual void	RemoveOutput (const DataObjectIdentifierType &key)

virtual void	RemoveOutput (DataObjectPointerArraySizeType idx)

bool	RemoveRequiredInputName (const DataObjectIdentifierType &)

virtual void	RestoreInputReleaseDataFlags ()

virtual void	SetInput (const DataObjectIdentifierType &key, DataObject *input)

virtual void	SetNthInput (DataObjectPointerArraySizeType idx, DataObject *input)

virtual void	SetNthOutput (DataObjectPointerArraySizeType idx, DataObject *output)

void	SetNumberOfIndexedInputs (DataObjectPointerArraySizeType num)

void	SetNumberOfIndexedOutputs (DataObjectPointerArraySizeType num)

virtual void	SetNumberOfRequiredInputs (DataObjectPointerArraySizeType)

virtual void	SetNumberOfRequiredOutputs (DataObjectPointerArraySizeType _arg)

virtual void	SetOutput (const DataObjectIdentifierType &name, DataObject *output)

virtual void	SetPrimaryInput (DataObject *object)

virtual void	SetPrimaryOutput (DataObject *object)

void	SetRequiredInputNames (const NameArray &)

virtual void	VerifyPreconditions () const

	~ProcessObject () override

DataObject *	GetInput (DataObjectPointerArraySizeType idx)

const DataObject *	GetInput (DataObjectPointerArraySizeType idx) const

DataObject *	GetPrimaryInput ()

const DataObject *	GetPrimaryInput () const

virtual void	SetPrimaryInputName (const DataObjectIdentifierType &key)

virtual const char *	GetPrimaryInputName () const

DataObject *	GetOutput (const DataObjectIdentifierType &key)

const DataObject *	GetOutput (const DataObjectIdentifierType &key) const

virtual void	SetPrimaryOutputName (const DataObjectIdentifierType &key)

virtual const char *	GetPrimaryOutputName () const

DataObject *	GetOutput (DataObjectPointerArraySizeType i)

const DataObject *	GetOutput (DataObjectPointerArraySizeType i) const

DataObject *	GetPrimaryOutput ()

const DataObject *	GetPrimaryOutput () const

virtual bool	GetThreaderUpdateProgress () const

virtual void	ThreaderUpdateProgressOn ()

virtual void	ThreaderUpdateProgressOff ()

virtual void	SetThreaderUpdateProgress (bool arg)

Protected Member Functions inherited from itk::Object
	Object ()

bool	PrintObservers (std::ostream &os, Indent indent) const

virtual void	SetTimeStamp (const TimeStamp &timeStamp)

	~Object () override

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 ()

Private Attributes
double	m_AngleResolution { 500 }

double	m_DiscRadius { 10 }

LinesListType	m_LinesList {}

LinesListSizeType	m_NumberOfLines { 1 }

ModifiedTimeType	m_OldModifiedTime { 0 }

OutputImagePointer	m_SimplifyAccumulator {}

double	m_Threshold { 0 }

double	m_Variance { 5 }

Additional Inherited Members
Static Public Attributes inherited from itk::ImageToImageFilter< Image< TInputPixelType, 2 >, Image< TOutputPixelType, 2 > >
static constexpr unsigned int	InputImageDimension

static constexpr unsigned int	InputImageDimension

static constexpr unsigned int	OutputImageDimension

static constexpr unsigned int	OutputImageDimension

Static Public Attributes inherited from itk::ImageSource< TOutputImage >
static constexpr unsigned int	OutputImageDimension = TOutputImage::ImageDimension

Protected Types inherited from itk::ImageToImageFilter< Image< TInputPixelType, 2 >, Image< TOutputPixelType, 2 > >
using	InputToOutputRegionCopierType

using	OutputToInputRegionCopierType

Static Protected Member Functions inherited from itk::ImageSource< TOutputImage >
static const ImageRegionSplitterBase *	GetGlobalDefaultSplitter ()

static ITK_THREAD_RETURN_FUNCTION_CALL_CONVENTION	ThreaderCallback (void *arg)

Static Protected Member Functions inherited from itk::ProcessObject
template<typename TSourceObject>
static void	MakeRequiredOutputs (TSourceObject &sourceObject, const DataObjectPointerArraySizeType numberOfRequiredOutputs)

static constexpr float	progressFixedToFloat (uint32_t fixed)

static uint32_t	progressFloatToFixed (float f)

Protected Attributes inherited from itk::ImageSource< TOutputImage >
bool	m_DynamicMultiThreading { true }

Protected Attributes inherited from itk::ProcessObject
TimeStamp	m_OutputInformationMTime {}

bool	m_Updating {}

Protected Attributes inherited from itk::LightObject
std::atomic< int >	m_ReferenceCount {}

Member Typedef Documentation

◆ ConstPointer

template<typename TInputPixelType, typename TOutputPixelType>

using itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::ConstPointer = SmartPointer<const Self>

Definition at line 82 of file itkHoughTransform2DLinesImageFilter.h.

◆ IndexType

template<typename TInputPixelType, typename TOutputPixelType>

using itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::IndexType = typename InputImageType::IndexType

Image index type alias

Definition at line 96 of file itkHoughTransform2DLinesImageFilter.h.

◆ InputImageConstPointer

template<typename TInputPixelType, typename TOutputPixelType>

using itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::InputImageConstPointer = typename InputImageType::ConstPointer

Definition at line 74 of file itkHoughTransform2DLinesImageFilter.h.

◆ InputImagePointer

template<typename TInputPixelType, typename TOutputPixelType>

using itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::InputImagePointer = typename InputImageType::Pointer

Definition at line 73 of file itkHoughTransform2DLinesImageFilter.h.

◆ InputImageType

template<typename TInputPixelType, typename TOutputPixelType>

using itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::InputImageType = Image<TInputPixelType, 2>

Input Image type alias

Definition at line 72 of file itkHoughTransform2DLinesImageFilter.h.

◆ LinePointer

template<typename TInputPixelType, typename TOutputPixelType>

using itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::LinePointer = typename LineType::Pointer

Definition at line 86 of file itkHoughTransform2DLinesImageFilter.h.

◆ LinePointType

template<typename TInputPixelType, typename TOutputPixelType>

using itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::LinePointType = LineType::LinePointType

Definition at line 88 of file itkHoughTransform2DLinesImageFilter.h.

◆ LinesListSizeType

template<typename TInputPixelType, typename TOutputPixelType>

using itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::LinesListSizeType = typename LinesListType::size_type

Definition at line 90 of file itkHoughTransform2DLinesImageFilter.h.

◆ LinesListType

template<typename TInputPixelType, typename TOutputPixelType>

using itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::LinesListType = std::list<LinePointer>

Definition at line 87 of file itkHoughTransform2DLinesImageFilter.h.

◆ LineType

template<typename TInputPixelType, typename TOutputPixelType>

using itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::LineType = LineSpatialObject<2>

Line type alias

Definition at line 85 of file itkHoughTransform2DLinesImageFilter.h.

◆ OutputImagePointer

template<typename TInputPixelType, typename TOutputPixelType>

using itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::OutputImagePointer = typename OutputImageType::Pointer

Definition at line 78 of file itkHoughTransform2DLinesImageFilter.h.

◆ OutputImageRegionType

template<typename TInputPixelType, typename TOutputPixelType>

using itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::OutputImageRegionType = typename InputImageType::RegionType

Typedef to describe the output image region type.

Definition at line 102 of file itkHoughTransform2DLinesImageFilter.h.

◆ OutputImageType

template<typename TInputPixelType, typename TOutputPixelType>

using itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::OutputImageType = Image<TOutputPixelType, 2>

Output Image type alias

Definition at line 77 of file itkHoughTransform2DLinesImageFilter.h.

◆ PixelType

template<typename TInputPixelType, typename TOutputPixelType>

using itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::PixelType = typename InputImageType::PixelType

Image pixel value type alias

Definition at line 99 of file itkHoughTransform2DLinesImageFilter.h.

◆ Pointer

template<typename TInputPixelType, typename TOutputPixelType>

using itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::Pointer = SmartPointer<Self>

Smart pointer type alias support

Definition at line 81 of file itkHoughTransform2DLinesImageFilter.h.

◆ Self

template<typename TInputPixelType, typename TOutputPixelType>

using itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::Self = HoughTransform2DLinesImageFilter

Standard "Self" type alias.

Definition at line 69 of file itkHoughTransform2DLinesImageFilter.h.

◆ Superclass

template<typename TInputPixelType, typename TOutputPixelType>

using itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::Superclass = ImageToImageFilter<InputImageType, OutputImageType>

Standard "Superclass" type alias.

Definition at line 93 of file itkHoughTransform2DLinesImageFilter.h.

Constructor & Destructor Documentation

◆ HoughTransform2DLinesImageFilter()

template<typename TInputPixelType, typename TOutputPixelType>

itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::HoughTransform2DLinesImageFilter ( )

protected

Referenced by GetNameOfClass().

◆ ~HoughTransform2DLinesImageFilter()

template<typename TInputPixelType, typename TOutputPixelType>

itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::~HoughTransform2DLinesImageFilter ( )

overrideprotecteddefault

Member Function Documentation

◆ CreateAnother()

template<typename TInputPixelType, typename TOutputPixelType>

virtual::itk::LightObject::Pointer itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::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::LightObject.

◆ EnlargeOutputRequestedRegion()

template<typename TInputPixelType, typename TOutputPixelType>

void itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::EnlargeOutputRequestedRegion ( DataObject * output )

overrideprotectedvirtual

HoughTransform2DLinesImageFilter must produce the entire output.

Reimplemented from itk::ProcessObject.

◆ GenerateData()

template<typename TInputPixelType, typename TOutputPixelType>

void itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::GenerateData ( )

overridevirtual

Method for evaluating the implicit function over the image.

Reimplemented from itk::ProcessObject.

◆ GenerateInputRequestedRegion()

template<typename TInputPixelType, typename TOutputPixelType>

void itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::GenerateInputRequestedRegion ( )

overrideprotectedvirtual

HoughTransform2DLinesImageFilter needs the entire input. Therefore it must provide an implementation GenerateInputRequestedRegion().

See also: ProcessObject::GenerateInputRequestedRegion().

Reimplemented from itk::ProcessObject.

◆ GenerateOutputInformation()

template<typename TInputPixelType, typename TOutputPixelType>

void itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::GenerateOutputInformation ( )

overrideprotectedvirtual

HoughTransform2DLinesImageFilter's output is the accumulator array. The size of the output is a function of the size of the input and the AngleAxisSize. Since this output is a different size than the input, it must provide an implementation of GenerateOutputInformation.

See also: ProcessObject::GenerateOutputRequestedRegion()

Reimplemented from itk::ProcessObject.

◆ GetAngleResolution()

template<typename TInputPixelType, typename TOutputPixelType>

virtual double itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::GetAngleResolution ( ) const

virtual

Set/Get the resolution angle. The Hough space describes (in the angle direction) [-PI,PI[ with a constant step AngleResolution.

◆ GetDiscRadius()

template<typename TInputPixelType, typename TOutputPixelType>

virtual double itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::GetDiscRadius ( ) const

virtual

Set/Get the radius of the disc to remove from the accumulator for each line found.

◆ GetLines()

template<typename TInputPixelType, typename TOutputPixelType>

LinesListType & itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::GetLines ( )

Get the list of lines. This recomputes the lines.

◆ GetModifiableSimplifyAccumulator()

template<typename TInputPixelType, typename TOutputPixelType>

virtual OutputImageType * itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::GetModifiableSimplifyAccumulator ( )

virtual

Get the Simplified accumulator.

◆ GetNameOfClass()

template<typename TInputPixelType, typename TOutputPixelType>

const char * itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::GetNameOfClass ( ) const

overridevirtual

See also: LightObject::GetNameOfClass()

Reimplemented from itk::LightObject.

References HoughTransform2DLinesImageFilter().

◆ GetNumberOfLines()

template<typename TInputPixelType, typename TOutputPixelType>

virtual LinesListSizeType itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::GetNumberOfLines ( ) const

virtual

Set/Get the number of lines to extract

◆ GetSimplifyAccumulator()

template<typename TInputPixelType, typename TOutputPixelType>

virtual const OutputImageType * itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::GetSimplifyAccumulator ( ) const

virtual

◆ GetThreshold()

template<typename TInputPixelType, typename TOutputPixelType>

virtual double itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::GetThreshold ( ) const

virtual

Set/Get the threshold above which the filter should consider the point as a valid point.

◆ GetVariance()

template<typename TInputPixelType, typename TOutputPixelType>

virtual double itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::GetVariance ( ) const

virtual

Set/Get the variance of the Gaussian blurring for the accumulator.

◆ New()

template<typename TInputPixelType, typename TOutputPixelType>

static Pointer itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::New ( )

static

Method for creation through the object factory.

◆ PrintSelf()

template<typename TInputPixelType, typename TOutputPixelType>

void itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::PrintSelf	(	std::ostream &	os,
		Indent	indent ) const

overrideprotectedvirtual

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::LightObject.

◆ SetAngleResolution()

template<typename TInputPixelType, typename TOutputPixelType>

virtual void itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::SetAngleResolution ( double _arg )

virtual

Set/Get the resolution angle. The Hough space describes (in the angle direction) [-PI,PI[ with a constant step AngleResolution.

◆ SetDiscRadius()

template<typename TInputPixelType, typename TOutputPixelType>

virtual void itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::SetDiscRadius ( double _arg )

virtual

Set/Get the radius of the disc to remove from the accumulator for each line found.

◆ SetNumberOfLines()

template<typename TInputPixelType, typename TOutputPixelType>

virtual void itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::SetNumberOfLines ( LinesListSizeType _arg )

virtual

Set/Get the number of lines to extract

◆ SetThreshold()

template<typename TInputPixelType, typename TOutputPixelType>

virtual void itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::SetThreshold ( double _arg )

virtual

Set/Get the threshold above which the filter should consider the point as a valid point.

◆ SetVariance()

template<typename TInputPixelType, typename TOutputPixelType>

virtual void itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::SetVariance ( double _arg )

virtual

Set/Get the variance of the Gaussian blurring for the accumulator.

◆ Simplify()

template<typename TInputPixelType, typename TOutputPixelType>

void itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::Simplify ( )

Simplify the accumulator. Performs the same iteration process as the Update() method, but finds the maximum along the curve and then removes the curve.

Member Data Documentation

◆ m_AngleResolution

template<typename TInputPixelType, typename TOutputPixelType>

double itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::m_AngleResolution { 500 }

private

Definition at line 187 of file itkHoughTransform2DLinesImageFilter.h.

◆ m_DiscRadius

template<typename TInputPixelType, typename TOutputPixelType>

double itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::m_DiscRadius { 10 }

private

Definition at line 193 of file itkHoughTransform2DLinesImageFilter.h.

◆ m_LinesList

template<typename TInputPixelType, typename TOutputPixelType>

LinesListType itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::m_LinesList {}

private

Definition at line 191 of file itkHoughTransform2DLinesImageFilter.h.

◆ m_NumberOfLines

template<typename TInputPixelType, typename TOutputPixelType>

LinesListSizeType itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::m_NumberOfLines { 1 }

private

Definition at line 192 of file itkHoughTransform2DLinesImageFilter.h.

◆ m_OldModifiedTime

template<typename TInputPixelType, typename TOutputPixelType>

ModifiedTimeType itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::m_OldModifiedTime { 0 }

private

Definition at line 195 of file itkHoughTransform2DLinesImageFilter.h.

◆ m_SimplifyAccumulator

template<typename TInputPixelType, typename TOutputPixelType>

OutputImagePointer itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::m_SimplifyAccumulator {}

private

Definition at line 190 of file itkHoughTransform2DLinesImageFilter.h.

◆ m_Threshold

template<typename TInputPixelType, typename TOutputPixelType>

double itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::m_Threshold { 0 }

private

Definition at line 188 of file itkHoughTransform2DLinesImageFilter.h.

◆ m_Variance

template<typename TInputPixelType, typename TOutputPixelType>

double itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >::m_Variance { 5 }

private

Definition at line 194 of file itkHoughTransform2DLinesImageFilter.h.

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

itkHoughTransform2DLinesImageFilter.h

Detailed Description

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Private Attributes

Additional Inherited Members

Member Typedef Documentation

◆ ConstPointer

◆ IndexType

◆ InputImageConstPointer

◆ InputImagePointer

◆ InputImageType

◆ LinePointer

◆ LinePointType

◆ LinesListSizeType

◆ LinesListType

◆ LineType

◆ OutputImagePointer

◆ OutputImageRegionType

◆ OutputImageType

◆ PixelType

◆ Pointer

◆ Self

◆ Superclass

Constructor & Destructor Documentation

◆ HoughTransform2DLinesImageFilter()

◆ ~HoughTransform2DLinesImageFilter()

Member Function Documentation

◆ CreateAnother()

◆ EnlargeOutputRequestedRegion()

◆ GenerateData()

◆ GenerateInputRequestedRegion()

◆ GenerateOutputInformation()

◆ GetAngleResolution()

◆ GetDiscRadius()

◆ GetLines()

◆ GetModifiableSimplifyAccumulator()

◆ GetNameOfClass()

◆ GetNumberOfLines()

◆ GetSimplifyAccumulator()

◆ GetThreshold()

◆ GetVariance()

◆ New()

◆ PrintSelf()

◆ SetAngleResolution()

◆ SetDiscRadius()

◆ SetNumberOfLines()

◆ SetThreshold()

◆ SetVariance()

◆ Simplify()

Member Data Documentation

◆ m_AngleResolution

◆ m_DiscRadius

◆ m_LinesList

◆ m_NumberOfLines

◆ m_OldModifiedTime

◆ m_SimplifyAccumulator

◆ m_Threshold

◆ m_Variance