inra.ijpb.binary.distmap

Class ChamferDistanceTransform3DShort

java.lang.Object

inra.ijpb.algo.AlgoStub

inra.ijpb.binary.distmap.ChamferDistanceTransform3DShort

All Implemented Interfaces:

Algo, ChamferDistanceTransform3D, DistanceTransform3D

public class ChamferDistanceTransform3DShort
extends AlgoStub
implements ChamferDistanceTransform3D

Computes 3D distance transform using the chamfer weights provided by a ChamferMask3D object, and using 16-bits integer computation.

Author:

David Legland

Constructor Summary

Constructors

Constructor and Description
ChamferDistanceTransform3DShort(ChamferMask3D mask) Creates a new algorithm for computing 3D distance maps based on a chamfer mask.
ChamferDistanceTransform3DShort(ChamferMask3D mask, boolean normalize) Creates a new algorithm for computing 3D distance maps based on a chamfer mask.

Method Summary

Modifier and Type	Method and Description
ij.ImageStack	distanceMap(ij.ImageStack image) Computes the distance map from a 3D binary image.
ChamferMask3D	mask()

Methods inherited from class inra.ijpb.algo.AlgoStub

addAlgoListener, fireProgressChanged, fireProgressChanged, fireStatusChanged, fireStatusChanged, removeAlgoListener

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface inra.ijpb.algo.Algo

addAlgoListener, removeAlgoListener

Constructor Detail

ChamferDistanceTransform3DShort

public ChamferDistanceTransform3DShort(ChamferMask3D mask)

Creates a new algorithm for computing 3D distance maps based on a chamfer mask.

Parameters:

mask - the chamfer mask to use for propagating distances

ChamferDistanceTransform3DShort

public ChamferDistanceTransform3DShort(ChamferMask3D mask,
                                       boolean normalize)

Creates a new algorithm for computing 3D distance maps based on a chamfer mask.

Parameters:

mask - the chamfer mask to use for propagating distances

normalize - whether distance map should be normalized by the weight associated to orthogonal shifts

Method Detail

mask

public ChamferMask3D mask()

Specified by:

mask in interface ChamferDistanceTransform3D

Returns:

the chamfer mask used by this distance transform algorithm.

distanceMap

public ij.ImageStack distanceMap(ij.ImageStack image)

Computes the distance map from a 3D binary image. Distance is computed for each foreground (white) pixel, as the chamfer distance to the nearest background (black) pixel.

Specified by:

distanceMap in interface DistanceTransform3D

Parameters:

image - a 3D binary image with white pixels (255) as foreground

Returns:

a new 3D image containing:

• 0 for each background pixel
• the distance to the nearest background pixel otherwise