SoPruningProcessing2d Class Reference
[Hit-Or-Miss And Skeleton]

ImageViz SoPruningProcessing2d engine More...

#include <ImageViz/Engines/MathematicalMorphology/HitOrMissAndSkeleton/SoPruningProcessing2d.h>

Inheritance diagram for SoPruningProcessing2d:
SoImageVizEngine SoEngine SoFieldContainer SoBase SoRefCounter SoTypedObject

List of all members.

Public Types

enum  PruningMode {
  RIGOROUS = 0,
  PERMISSIVE = 1
}

Public Member Functions

 SoPruningProcessing2d ()

Public Attributes

SoSFImageDataAdapter inBinaryImage
SoSFEnum pruningMode
SoSFInt32 maxLength
SoImageVizEngineOutput
< SoSFImageDataAdapter,
SoImageDataAdapter * > 
outBinaryImage

Detailed Description

ImageViz SoPruningProcessing2d engine

The SoPruningProcessing2d engine prunes the result of a skeletonization. It removes all object voxels having only one neighbor. It can be applied either specifying a number of iterations or until convergence. This filter can be used for removing terminal branches from a skeleton.

The skeleton is very sensitive to small distortions on the edges of the objects, generating artefacts. The SoPruningProcessing2d engine eliminates these artefacts by thinning with the following structuring element until convergence.

The corresponding structuring element is:

\[ \begin{array}{ccc} 0 & \times & 0\\ 0 & 1 & 0\\ 0 & 0 & 0 \end{array} \]

The problem is to determine the number of iterations for the pruning as thinning until convergence will remove all the skeletons except loops and branches intersecting the frame of the image in permissive mode. The strict mode will also stop when an intersection or a right angle is encountered.

See also: SoSkeletonProcessing, SoPruningProcessing3d.

FILE FORMAT/DEFAULT


Library references: pruning


Member Enumeration Documentation

Enumerator:
RIGOROUS 

Each iteration removes only the end points as defined in SoEndPointsProcessing2d.

Using this mode, the pruning stops when an intersection or a right angle is encountered.

PERMISSIVE 

A skeletonization is reapplied between two iterations.

Using this mode, only the closed-loops are kept.


Constructor & Destructor Documentation

SoPruningProcessing2d::SoPruningProcessing2d (  ) 

Constructor.


Member Data Documentation

The input image.

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

Enter the number of iterations (0:until convergence) Default value is 1.

The output binary image.

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

End point mode Use enum PruningMode.

Default is RIGOROUS


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

Open Inventor Toolkit reference manual, generated on 15 Mar 2023
Copyright © Thermo Fisher Scientific All rights reserved.
http://www.openinventor.com/