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Open Inventor Release 2023.2.3
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Open Inventor Release 2023.2.3
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SoHistogramEqualizationProcessing engine
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#include <ImageViz/Engines/ImageFiltering/GrayscaleTransforms/SoHistogramEqualizationProcessing.h>
Inheritance diagram for SoHistogramEqualizationProcessing:Public Types | |
| enum | RangeMode { MIN_MAX = 0 , OTHER = 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 | |
| SoHistogramEqualizationProcessing () | |
| 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. | |
| SoSFImageDataAdapter | inImage |
| The input image. | |
| SoSFEnum | rangeMode |
| Select the input intensity range mode. | |
| SoSFVec2i32 | intensityRangeInput |
| The input intensity range. | |
| SoSFVec2i32 | intensityRangeOutput |
| The output intensity range. | |
| SoImageVizEngineOutput< SoSFImageDataAdapter, SoImageDataAdapter * > | outImage |
| The output 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. | |
SoHistogramEqualizationProcessing engine
The SoHistogramEqualizationProcessing engine performs a histogram equalization.
This engine performs a histogram equalization of image I onto image O. For example, if an image contains n pixels and uses M gray values, there is an average of n/M pixels per gray level. An image is correctly contrasted if the number of pixels is closed to this mean value for each gray level value.
The aim of histogram equalization is to transform the histogram to make it uniform. In Figure a, the histogram is very condensed, and the image is poorly contrasted. In Figure b, the histogram is more widely distributed, and the image has a better contrast.
SoMatchContrastProcessing, SoBackgroundImageProcessing2d, SoMathematicalFunctionProcessing.
| computeMode | MODE_AUTO |
| inImage | NULL |
| rangeMode | MIN_MAX |
| intensityRangeInput | 0 255 |
| intensityRangeOutput | 0 255 |
Definition at line 76 of file SoHistogramEqualizationProcessing.h.
| Enumerator | |
|---|---|
| MIN_MAX | With this option the histogram is computed between the minimum and the maximum of the image. |
| OTHER | With this option the histogram is computed between user-defined bounds [a,b]. |
Definition at line 96 of file SoHistogramEqualizationProcessing.h.
| SoHistogramEqualizationProcessing::SoHistogramEqualizationProcessing | ( | ) |
Constructor.
| SoSFEnum SoHistogramEqualizationProcessing::computeMode |
Select the compute Mode (2D or 3D or AUTO) Use enum ComputeMode.
Default is MODE_AUTO
Definition at line 88 of file SoHistogramEqualizationProcessing.h.
| SoSFImageDataAdapter SoHistogramEqualizationProcessing::inImage |
The input image.
Default value is NULL. Supported types include: grayscale binary label image.
Definition at line 91 of file SoHistogramEqualizationProcessing.h.
| SoSFVec2i32 SoHistogramEqualizationProcessing::intensityRangeInput |
The input intensity range.
Default value is SbVec2i32(0,255).
Definition at line 113 of file SoHistogramEqualizationProcessing.h.
| SoSFVec2i32 SoHistogramEqualizationProcessing::intensityRangeOutput |
The output intensity range.
Default value is SbVec2i32(0,255).
Definition at line 116 of file SoHistogramEqualizationProcessing.h.
| SoImageVizEngineOutput<SoSFImageDataAdapter,SoImageDataAdapter*> SoHistogramEqualizationProcessing::outImage |
The output image.
Default value is NULL. Supported types include: grayscale binary label color image.
Definition at line 119 of file SoHistogramEqualizationProcessing.h.
| SoSFEnum SoHistogramEqualizationProcessing::rangeMode |
Select the input intensity range mode.
Use enum RangeMode. Default is MIN_MAX
Definition at line 110 of file SoHistogramEqualizationProcessing.h.
1.9.8 