Open Inventor Release 2023.2.3
 
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SoImageCurvatureProcessing3d Class Reference

ImageViz SoImageCurvatureProcessing3d engine More...

#include <ImageViz/Engines/ImageFiltering/TextureFilters/SoImageCurvatureProcessing3d.h>

+ Inheritance diagram for SoImageCurvatureProcessing3d:

Public Member Functions

 SoImageCurvatureProcessing3d ()
 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.
 
SoEngineOutputgetOutput (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).
 
SoEnginecopy () 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 SoFieldgetField (const SbName &fieldName) const
 Returns a the field of this object whose name is fieldName.
 
virtual SoFieldgetEventIn (const SbName &fieldName) const
 Returns a the eventIn with the given name.
 
virtual SoFieldgetEventOut (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

SoSFImageDataAdapter inImage
 The input image.
 
SoSFImageDataAdapter inMaskImage
 The binary image for the mask or empty (command looks for only inside).
 
SoSFFloat standardDeviation
 The standard deviation for Gaussian filter.
 
SoImageVizEngineOutput< SoSFImageDataAdapter, SoImageDataAdapter * > outRealImageMax
 The maximal curvature output image (floating values).
 
SoImageVizEngineOutput< SoSFImageDataAdapter, SoImageDataAdapter * > outRealImageMin
 The minimal curvature output image (floating values).
 
- 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

- 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...
 
- 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 SoEnginegetByName (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

ImageViz SoImageCurvatureProcessing3d engine

The SoImageCurvatureProcessing3d engine computes local gray level 3D curvatures in image.

This engine computes for each voxel of an input image local texture curvature. Computed curvature(s) takes voxel size into account.

This engine computes local gray level 3D curvatures in image. Each voxel is then associated to two principal curvatures : $\kappa_{Max}$ and $\kappa_{Min}$. The $\kappa_{Max}$ stands for maximal local curvature whereas $\kappa_{Min}$ stands for minimal curvature.

Curvature 3D: saddle point example (image: Eric Gaba)

Two important indicators can be extracted from these values :

  • Gaussian curvature : $K=\kappa_{Max} \times \kappa_{Min}$
  • Mean curvature : $H=\frac{1}{2}(\kappa_{Max} + \kappa_{Min})$

Gaussian curvature can be used to characterize local surface comportment :

  • If gaussian curvature is positive, both principal curvatures have same sign and local surface will be dome like (which mean that it is locally lying on one side of its tangent plane. In this case, a positive curvature stand for convex surface whereas a negative value stand for a concave surface.
  • If gaussian curvature is negative, principal curvatures have opposite signs and local surface will be saddle shaped (see figure above).
  • If gaussian curvature is null, surface will be locally parabolic like. If $=0$, surface profil will locally be valley like.

SEE ALSO

SoFlowInpaintingProcessing.

FILE FORMAT/DEFAULT

    ImageCurvatureProcessing3d {
    inImage NULL
    inMaskImage NULL
    standardDeviation 4.0f
    }


Library references: curvature3d

Definition at line 86 of file SoImageCurvatureProcessing3d.h.

Constructor & Destructor Documentation

◆ SoImageCurvatureProcessing3d()

SoImageCurvatureProcessing3d::SoImageCurvatureProcessing3d ( )

Constructor.

Member Data Documentation

◆ inImage

SoSFImageDataAdapter SoImageCurvatureProcessing3d::inImage

The input image.

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

Definition at line 96 of file SoImageCurvatureProcessing3d.h.

◆ inMaskImage

SoSFImageDataAdapter SoImageCurvatureProcessing3d::inMaskImage

The binary image for the mask or empty (command looks for only inside).

This parameter is optional. Default value is NULL. Supported types include: binary image.

Definition at line 99 of file SoImageCurvatureProcessing3d.h.

◆ outRealImageMax

SoImageVizEngineOutput<SoSFImageDataAdapter,SoImageDataAdapter*> SoImageCurvatureProcessing3d::outRealImageMax

The maximal curvature output image (floating values).

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

Definition at line 105 of file SoImageCurvatureProcessing3d.h.

◆ outRealImageMin

SoImageVizEngineOutput<SoSFImageDataAdapter,SoImageDataAdapter*> SoImageCurvatureProcessing3d::outRealImageMin

The minimal curvature output image (floating values).

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

Definition at line 108 of file SoImageCurvatureProcessing3d.h.

◆ standardDeviation

SoSFFloat SoImageCurvatureProcessing3d::standardDeviation

The standard deviation for Gaussian filter.

Default value is 4.0f.

Definition at line 102 of file SoImageCurvatureProcessing3d.h.


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