inra.ijpb.binary.distmap

Class ChamferMask2DW2

java.lang.Object

inra.ijpb.binary.distmap.ChamferMask2D

inra.ijpb.binary.distmap.ChamferMask2DW2

public class ChamferMask2DW2
extends ChamferMask2D

Implementation of Chamfer Weights that manages two types of offsets, corresponding to orthogonal and diagonal neighbors. Weights are stored internally as short values.

Author:

dlegland

Nested Class Summary

Nested classes/interfaces inherited from class inra.ijpb.binary.distmap.ChamferMask2D

ChamferMask2D.FloatOffset, ChamferMask2D.ShortOffset

Field Summary

Fields inherited from class inra.ijpb.binary.distmap.ChamferMask2D

BORGEFORS, CHESSBOARD, CHESSKNIGHT, CITY_BLOCK, QUASI_EUCLIDEAN, VERWER

Constructor Summary

Constructors

Constructor and Description
ChamferMask2DW2(int a, int b) Creates a new ChamferWeights3D object by specifying the weights associated to orthogonal and diagonal neighbors.
ChamferMask2DW2(short[] weights) Creates a new ChamferMask2D object by specifying the weights associated to orthogonal and diagonal neighbors.

Method Summary

Modifier and Type	Method and Description
Collection<ChamferMask2D.ShortOffset>	getBackwardOffsets()
Collection<ChamferMask2D.ShortOffset>	getForwardOffsets()
short	getShortNormalizationWeight()

Methods inherited from class inra.ijpb.binary.distmap.ChamferMask2D

fromWeights, fromWeights, fromWeights, getBackwardFloatOffsets, getFloatOffsets, getForwardFloatOffsets, getNormalizationWeight, getOffsets

Methods inherited from class java.lang.Object

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

Constructor Detail

ChamferMask2DW2

public ChamferMask2DW2(int a,
                       int b)

Creates a new ChamferWeights3D object by specifying the weights associated to orthogonal and diagonal neighbors.

Parameters:

a - the weight associated to orthogonal neighbors

b - the weight associated to diagonal neighbors

ChamferMask2DW2

public ChamferMask2DW2(short[] weights)

Creates a new ChamferMask2D object by specifying the weights associated to orthogonal and diagonal neighbors.

Parameters:

weights - the weights associated to the different types of offset

Method Detail

getForwardOffsets

public Collection<ChamferMask2D.ShortOffset> getForwardOffsets()

Specified by:

getForwardOffsets in class ChamferMask2D

Returns:

the set of offsets defined by this ChamferMask2D for forward iteration using integer weights.

getBackwardOffsets

public Collection<ChamferMask2D.ShortOffset> getBackwardOffsets()

Specified by:

getBackwardOffsets in class ChamferMask2D

Returns:

the set of offsets defined by this ChamferMask2D for backward iteration using integer weights.

getShortNormalizationWeight

public short getShortNormalizationWeight()

Specified by:

getShortNormalizationWeight in class ChamferMask2D

Returns:

the weight associated to orthogonal offsets, that can be used to normalize the distance map.