SoObjectToSegmentApproximation2d Class Reference
[Computational Geometry]

SoObjectToSegmentApproximation2d engine More...

#include <ImageViz/Engines/ImageSegmentation/ComputationalGeometry/SoObjectToSegmentApproximation2d.h>

Inheritance diagram for SoObjectToSegmentApproximation2d:

List of all members.

Public Member Functions
	SoObjectToSegmentApproximation2d ()
Public Attributes
SoSFImageDataAdapter	inObjectImage
SoSFInt32	minArea
SoSFInt32	maxPointNumber
SoSFFloat	maxDistance
SoImageVizEngineOutput < SoSFSegmentChain, SoSegmentChain * >	outSegment

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Detailed Description

SoObjectToSegmentApproximation2d engine

The SoObjectToSegmentApproximation2d engine computes the polygonal approximation of object boundaries.

For an introduction, see section Discrete Geometry.

The SoObjectToSegmentApproximation2d engine first extracts chains from objects edges. Then it applies the dichotomous polygonal approximation. This operation consists in converting chains into segments by approximating the polygons of linear segments. It provides the outlines of the polygons.

FILE FORMAT/DEFAULT

ObjectToSegmentApproximation2d {

inObjectImage	NULL
minArea	5
maxPointNumber	256000
maxDistance	1.5f

}

Library references: seg_approx

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Constructor & Destructor Documentation

SoObjectToSegmentApproximation2d::SoObjectToSegmentApproximation2d

(

)

Constructor.

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Member Data Documentation

SoSFImageDataAdapter SoObjectToSegmentApproximation2d::inObjectImage

The input binary or label image.

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

SoSFFloat SoObjectToSegmentApproximation2d::maxDistance

The maximum distance in pixels between curve and segment.

Default value is 1.5f.

SoSFInt32 SoObjectToSegmentApproximation2d::maxPointNumber

The maximum number of processed pixels.

Default value is 256000.

SoSFInt32 SoObjectToSegmentApproximation2d::minArea

The minimum surface of kept cells.

Default value is 5.

SoImageVizEngineOutput<SoSFSegmentChain,SoSegmentChain*> SoObjectToSegmentApproximation2d::outSegment

The output segment.

Default value is NULL.

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

• ImageViz/Engines/ImageSegmentation/ComputationalGeometry/SoObjectToSegmentApproximation2d.h