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SoMedianFilterProcessing Class

OIV.ImageViz.Engines.ImageFiltering.SmoothingAndDenoising.SoMedianFilterProcessing engine.

Inheritance Hierarchy

Namespace: OIV.ImageViz.Engines.ImageFiltering.SmoothingAndDenoising
Assembly: OIV.ImageViz (in OIV.ImageViz.dll) Version: 10.12.3.0 (10.12.3.0)
Syntax
public class SoMedianFilterProcessing : SoImageVizEngine

The SoMedianFilterProcessing type exposes the following members.

Constructors
  NameDescription
Public methodSoMedianFilterProcessing

Constructor.

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Methods
  NameDescription
Public methodAbortEvaluate

Abort current processing as soon as possible.

(Inherited from SoImageVizEngine.)
Public methodCopy

Creates and returns an exact copy of the engine.

(Inherited from SoEngine.)
Public methodCopyFieldValues(SoFieldContainer)
Calls CopyFieldValues(fc, false).
(Inherited from SoFieldContainer.)
Public methodCopyFieldValues(SoFieldContainer, Boolean)

Copies the contents of fc's fields into this object's fields.

(Inherited from SoFieldContainer.)
Public methodDispose
Releases all resources used by SoDisposable.
(Inherited from SoDisposable.)
Public methodEnableNotify

Notification at this Field Container is enabled (if flag == true) or disabled (if flag == false).

(Inherited from SoFieldContainer.)
Public methodEquals
Determines whether the specified Object is equal to the current Object.
(Inherited from Object.)
Public methodFieldsAreEqual

Returns true if this object's fields are exactly equal to fc's fields.

(Inherited from SoFieldContainer.)
Public methodGet

Returns the values of the fields of this object in the Open Inventor ASCII file format in the given string.

(Inherited from SoFieldContainer.)
Public methodGetAllFields

Returns a list of fields, including the eventIn's and eventOut's.

(Inherited from SoFieldContainer.)
Public methodGetEventIn

Returns a the eventIn with the given name.

(Inherited from SoFieldContainer.)
Public methodGetEventOut

Returns the eventOut with the given name.

(Inherited from SoFieldContainer.)
Public methodGetField

Returns a the field of this object whose name is fieldName.

(Inherited from SoFieldContainer.)
Public methodGetFieldName

Returns the name of the given field in the fieldName argument.

(Inherited from SoFieldContainer.)
Public methodGetFields

Appends references to all of this object's fields to resultList, and returns the number of fields appended.

(Inherited from SoFieldContainer.)
Public methodGetHashCode
Overrides GetHashCode().
(Inherited from SoNetBase.)
Public methodGetName

Returns the name of an instance.

(Inherited from SoBase.)
Public methodGetOutput

Returns a reference to the engine output with the given name.

(Inherited from SoEngine.)
Public methodGetOutputName

Returns (in outputName) the name of the engine output (output).

(Inherited from SoEngine.)
Public methodGetOutputs

Returns a list of outputs in this engine.

(Inherited from SoEngine.)
Public methodGetStringName (Inherited from SoBase.)
Public methodGetType
Gets the Type of the current instance.
(Inherited from Object.)
Public methodHasDefaultValues

Returns true if all of the object's fields have their default values.

(Inherited from SoFieldContainer.)
Public methodIsEvaluating

Returns true if the engine evaluation is in progress.

(Inherited from SoImageVizEngine.)
Public methodIsNotifyEnabled

Notification is the process of telling interested objects that this object has changed.

(Inherited from SoFieldContainer.)
Public methodIsSynchronizable

Gets the ScaleViz synchronizable state of this object.

(Inherited from SoBase.)
Public methodSet

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.

(Inherited from SoFieldContainer.)
Public methodSetName (Inherited from SoBase.)
Public methodSetSynchronizable

Sets this to be a ScaleViz synchronizable object.

(Inherited from SoBase.)
Public methodSetToDefaults

Sets all fields in this object to their default values.

(Inherited from SoFieldContainer.)
Public methodStartEvaluate

Evaluate engine and dependencies in another thread without blocking the current one.

(Inherited from SoImageVizEngine.)
Public methodToString
Converts this SoBase structure to a human readable string.
(Inherited from SoBase.)
Public methodTouch

Marks an instance as modified, simulating a change to it.

(Inherited from SoBase.)
Public methodWaitEvaluate

Wait for the end of engine evaluation.

(Inherited from SoImageVizEngine.)
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Properties
  NameDescription
Public propertycomputeMode

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

Public propertyelementSize

The half size of the structuring element.

Public propertyinImage

The input grayscale image.

Public propertyIsDisposable
ISafeDisposable interface implementation.
(Inherited from SoDisposable.)
Public propertykernelMode

The shape of the 3D neighborhood.

Public propertyneighborhood3d

In 3D configuration (see OIV.ImageViz.Engines.ImageFiltering.SmoothingAndDenoising.SoMedianFilterProcessing.computeMode), the neighborhood connectivity defines the connectivity considered for processing adjacent voxels.

Public propertyoutImage

The output image.

Public propertyUserData
Gets or sets the user data to be contained by the field container.
(Inherited from SoFieldContainer.)
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Events
  NameDescription
Public eventOnBegin

Event raised when the processing begins.

(Inherited from SoImageVizEngine.)
Public eventOnEnd

Event raised when processing ends and the result is available.

(Inherited from SoImageVizEngine.)
Public eventOnProgress

Event raised while processing is running.

(Inherited from SoImageVizEngine.)
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Remarks

The OIV.ImageViz.Engines.ImageFiltering.SmoothingAndDenoising.SoMedianFilterProcessing engine smoothes the image using morphological operators.

For an introduction to image filters, see section OIV.ImageViz.Engines.ImageFiltering.

This module uses morphological operators to set the pixel value to the median for the defined neighborhood. The OIV.ImageViz.Engines.ImageFiltering.SmoothingAndDenoising.SoMedianFilterProcessing usually works well when images contain non-Gaussian noise and/or very small artifacts. It does not cause blurring to the same extend as the OIV.ImageViz.Engines.ImageFiltering.SmoothingAndDenoising.SoBoxFilterProcessing, but does take considerably longer to execute.

The gray levels of all pixels in the neighborhood are sorted from the smallest value to the largest one. The central pixel in the sort is then the median value, i.e. the value for which there are as many lower gray levels as higher ones. The process may be iterated.

To explain this, consider the array:

The sorted gray level values will be: 12 14 14 15 17 18 19 20. The median value is 16, and it will be the value of the output pixel.

The Median filtering considers the lines and then the columns.

FILE FORMAT/DEFAULT

MedianFilterProcessing {
computeMode MODE_AUTO
neighborhood3d CONNECTIVITY_26
inImage NULL
elementSize 3
kernelMode CUBE
}

Library references: medianfilter medianfilter3d

See Also