SoHExtremaWatershedProcessing engine computes the watershed lines of a grayscale image. More...

#include <ImageViz/Engines/ImageSegmentation/SeparatingAndFilling/SoHExtremaWatershedProcessing.h>

Inheritance diagram for SoHExtremaWatershedProcessing:

Public Types
enum	ObjectLightness { DARK_OBJECTS = 0 , BRIGHT_OBJECTS = 1 }

enum	SeparationMode { SEPARATED_OBJECTS = 0 , WATERSHED_RIDGES = 1 , SEPARATED_BASINS = 2 , CONTIGUOUS_BASINS = 3 }

enum	AlgorithmMode { REPEATABLE = 0 , FAST = 1 }

Public Types inherited from SoImageVizEngine
enum	ComputeMode { MODE_2D = 0 , MODE_3D = 1 , MODE_AUTO = 2 }
	Compute Mode This enum specifies whether the main input will be interpreted as a 3D volume or a stack of 2D images for processing. More...

enum	Neighborhood3d { CONNECTIVITY_6 = 0 , CONNECTIVITY_18 = 1 , CONNECTIVITY_26 = 2 }
	Neighborhood Connectivity 3D. More...

Public Member Functions
	SoHExtremaWatershedProcessing ()
	Constructor.

Public Member Functions inherited from SoImageVizEngine
virtual SoType	getTypeId () const
	Returns the type identifier for this specific instance.

virtual void	startEvaluate ()
	Evaluate engine and dependencies in another thread without blocking the current one.

virtual void	waitEvaluate ()
	Wait for the end of engine evaluation.

virtual void	abortEvaluate ()
	Abort current processing as soon as possible.

virtual bool	isEvaluating ()
	Returns true if the engine evaluation is in progress.

Public Member Functions inherited from SoEngine
virtual int	getOutputs (SoEngineOutputList &list) const
	Returns a list of outputs in this engine.

SoEngineOutput *	getOutput (const SbName &outputName) const
	Returns a reference to the engine output with the given name.

SbBool	getOutputName (const SoEngineOutput *output, SbName &outputName) const
	Returns (in outputName) the name of the engine output (output).

SoEngine *	copy () const
	Creates and returns an exact copy of the engine.

Public Member Functions inherited from SoFieldContainer
void	setToDefaults ()
	Sets all fields in this object to their default values.

SbBool	hasDefaultValues () const
	Returns TRUE if all of the object's fields have their default values.

SbBool	fieldsAreEqual (const SoFieldContainer *fc) const
	Returns TRUE if this object's fields are exactly equal to fc's fields.

void	copyFieldValues (const SoFieldContainer *fc, SbBool copyConnections=FALSE)
	Copies the contents of fc's fields into this object's fields.

SoNONUNICODE SbBool	set (const char *fieldDataString)
	Sets one or more fields in this object to the values specified in the given string, which should be a string in the Open Inventor file format.

SbBool	set (const SbString &fieldDataString)
	Sets one or more fields in this object to the values specified in the given string, which should be a string in the Open Inventor file format.

void	get (SbString &fieldDataString)
	Returns the values of the fields of this object in the Open Inventor ASCII file format in the given string.

virtual int	getFields (SoFieldList &list) const
	Appends references to all of this object's fields to resultList, and returns the number of fields appended.

virtual int	getAllFields (SoFieldList &list) const
	Returns a list of fields, including the eventIn's and eventOut's.

virtual SoField *	getField (const SbName &fieldName) const
	Returns a the field of this object whose name is fieldName.

virtual SoField *	getEventIn (const SbName &fieldName) const
	Returns a the eventIn with the given name.

virtual SoField *	getEventOut (const SbName &fieldName) const
	Returns the eventOut with the given name.

SbBool	getFieldName (const SoField *field, SbName &fieldName) const
	Returns the name of the given field in the fieldName argument.

SbBool	enableNotify (SbBool flag)
	Notification at this Field Container is enabled (if flag == TRUE) or disabled (if flag == FALSE).

SbBool	isNotifyEnabled () const
	Notification is the process of telling interested objects that this object has changed.

virtual void	setUserData (void *data)
	Sets application data.

void *	getUserData (void) const
	Gets user application data.

Public Member Functions inherited from SoBase
virtual void	touch ()
	Marks an instance as modified, simulating a change to it.

virtual SbName	getName () const
	Returns the name of an instance.

virtual void	setName (const SbName &name)
	Sets the name of an instance.

void	setSynchronizable (const bool b)
	Sets this to be a ScaleViz synchronizable object.

bool	isSynchronizable () const
	Gets the ScaleViz synchronizable state of this object.

Public Member Functions inherited from SoRefCounter
void	ref () const
	Adds a reference to an instance.

void	unref () const
	Removes a reference from an instance.

void	unrefNoDelete () const
	unrefNoDelete() should be called when it is desired to decrement the reference count, but not delete the instance if this brings the reference count to zero.

int	getRefCount () const
	Returns current reference count.

void	lock () const
	lock this instance.

void	unlock () const
	unlock this instance.

Public Member Functions inherited from SoTypedObject
SbBool	isOfType (const SoType &type) const
	Returns TRUE if this object is of the type specified in type or is derived from that type.

template<typename TypedObjectClass >
SbBool	isOfType () const
	Returns TRUE if this object is of the type of class TypedObjectClass or is derived from that class.

Public Attributes
SoSFEnum	computeMode
	Select the compute Mode (2D or 3D or AUTO) Use enum ComputeMode.

SoSFEnum	neighborhood3d
	In 3D configuration (see computeMode), the neighborhood connectivity defines the connectivity considered for processing adjacent voxels.

SoSFImageDataAdapter	inGrayImage
	The input grayscale image.

SoSFEnum	objectLightness
	Select the lightness mode for object to separate.

SoSFEnum	separationMode
	Select the output image type: separation lines, split objects or separated basins.

SoSFEnum	algorithmMode
	Select the algorithm mode for fastwatershed.

SoSFInt32	contrastValue
	The depth of valley.

SoImageVizEngineOutput< SoSFImageDataAdapter, SoImageDataAdapter * >	outSeparationImage
	The output separation (binary or label) image.

Public Attributes inherited from SoImageVizEngine
SbEventHandler< EventArg & >	onBegin
	Event raised when the processing begins.

SbEventHandler< EventArg & >	onEnd
	Event raised when processing ends and the result is available.

SbEventHandler< EventArg & >	onProgress
	Event raised while processing is running.

Additional Inherited Members
Static Public Member Functions inherited from SoImageVizEngine
static SoType	getClassTypeId ()
	Returns the type identifier for this class.

Static Public Member Functions inherited from SoEngine
static SoType	getClassTypeId ()
	Returns the type identifier for the SoEngine class.

static SoEngine *	getByName (const SbName &name)
	Looks up engine(s) by name.

static int	getByName (const SbName &name, SoEngineList &list)
	Looks up engine(s) by name.

Static Public Member Functions inherited from SoFieldContainer
static SoType	getClassTypeId ()
	Returns the type of this class.

Static Public Member Functions inherited from SoBase
static SoType	getClassTypeId ()
	Returns type identifier for this class.

Static Public Member Functions inherited from SoTypedObject
static SoType	getClassTypeId ()
	Returns the type identifier for this class.

Detailed Description

SoHExtremaWatershedProcessing engine computes the watershed lines of a grayscale image.

This engine computes the watershed lines of a grayscale image. It directly uses the image for black objects and the inverted image for white objects. You can adjust the contrast level which is used to reduce the number of markers for the watershed process.

This engine is a high-level combination of watershed, distance transform and numerical reconstruction algorithms. There is a limitation to the separating ability: if some particles overlap too much, they will not be separated. This engine can be used on the gradient modulus to compute best-fit contours.

Notice: This engine requires to preliminarily load the whole input data set into memory to be computed. As a consequence the input data set will be automatically loaded before the execution of this engine, ignoring the maximum memory parameter of the SbImageDataAdapterHelper::getAppropriateAdapter function or SoFileDataAdapter class

If the input data set cannot fit in memory, this engine will fail during its computation.

FILE FORMAT/DEFAULT

computeMode	MODE_AUTO
neighborhood3d	CONNECTIVITY_26
inGrayImage	NULL
objectLightness	DARK_OBJECTS
separationMode	SEPARATED_OBJECTS
algorithmMode	REPEATABLE
contrastValue	30

Library references: greyseparate

Definition at line 82 of file SoHExtremaWatershedProcessing.h.

Member Enumeration Documentation

◆ AlgorithmMode

enum SoHExtremaWatershedProcessing::AlgorithmMode

Enumerator
REPEATABLE	Repeatable but slower.
FAST	Faster but not repeatable because of asynchronous parallel computation.

Definition at line 156 of file SoHExtremaWatershedProcessing.h.

◆ ObjectLightness

enum SoHExtremaWatershedProcessing::ObjectLightness

Enumerator
DARK_OBJECTS	The engine applies to black particles.
BRIGHT_OBJECTS	The engine applies to white particles.

Definition at line 109 of file SoHExtremaWatershedProcessing.h.

◆ SeparationMode

enum SoHExtremaWatershedProcessing::SeparationMode

Enumerator
SEPARATED_OBJECTS	The result data is the original data minus separation lines (binary image of split particles).
WATERSHED_RIDGES	The result data is the separation lines (binary image).
SEPARATED_BASINS	The result data is the watersheds (label image).
CONTIGUOUS_BASINS	The result data is the watersheds without separation lines (label image).

Definition at line 128 of file SoHExtremaWatershedProcessing.h.

Constructor & Destructor Documentation

◆ SoHExtremaWatershedProcessing()

SoHExtremaWatershedProcessing::SoHExtremaWatershedProcessing ( )

Constructor.

Member Data Documentation

◆ algorithmMode

SoSFEnum SoHExtremaWatershedProcessing::algorithmMode

Select the algorithm mode for fastwatershed.

Use enum AlgorithmMode. Default is REPEATABLE

Definition at line 170 of file SoHExtremaWatershedProcessing.h.

◆ computeMode

SoSFEnum SoHExtremaWatershedProcessing::computeMode

Select the compute Mode (2D or 3D or AUTO) Use enum ComputeMode.

Default is MODE_AUTO

Definition at line 94 of file SoHExtremaWatershedProcessing.h.

◆ contrastValue

SoSFInt32 SoHExtremaWatershedProcessing::contrastValue

The depth of valley.

Default value is 30.

Definition at line 173 of file SoHExtremaWatershedProcessing.h.

◆ inGrayImage

SoSFImageDataAdapter SoHExtremaWatershedProcessing::inGrayImage

The input grayscale image.

Default value is NULL. Supported types include: grayscale image.

Definition at line 104 of file SoHExtremaWatershedProcessing.h.

◆ neighborhood3d

SoSFEnum SoHExtremaWatershedProcessing::neighborhood3d

In 3D configuration (see computeMode), the neighborhood connectivity defines the connectivity considered for processing adjacent voxels.

Use enum Neighborhood3d. Default is CONNECTIVITY_26.

Definition at line 101 of file SoHExtremaWatershedProcessing.h.

◆ objectLightness

SoSFEnum SoHExtremaWatershedProcessing::objectLightness

Select the lightness mode for object to separate.

Use enum ObjectLightness. Default is DARK_OBJECTS

Definition at line 123 of file SoHExtremaWatershedProcessing.h.

◆ outSeparationImage

SoImageVizEngineOutput<SoSFImageDataAdapter,SoImageDataAdapter*> SoHExtremaWatershedProcessing::outSeparationImage

The output separation (binary or label) image.

Default value is NULL. Supported types include: grayscale binary label color image.

Definition at line 176 of file SoHExtremaWatershedProcessing.h.

◆ separationMode

SoSFEnum SoHExtremaWatershedProcessing::separationMode

Select the output image type: separation lines, split objects or separated basins.

Use enum SeparationMode. Default is SEPARATED_OBJECTS

Definition at line 151 of file SoHExtremaWatershedProcessing.h.

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

ImageViz/Engines/ImageSegmentation/SeparatingAndFilling/SoHExtremaWatershedProcessing.h

Open Inventor Release 2023.2.3

Public Types

Public Member Functions

Public Attributes

Additional Inherited Members