inra.ijpb.binary.distmap

Class DistanceTransform3x3Float

java.lang.Object

inra.ijpb.algo.AlgoStub

inra.ijpb.binary.distmap.DistanceTransform3x3Float

All Implemented Interfaces:

Algo, DistanceTransform

Deprecated.

replaced by ChamferDistanceTransform2DFloat (since 1.5.0)

@Deprecated
public class DistanceTransform3x3Float
extends AlgoStub
implements DistanceTransform

Computes Chamfer distances in a 3x3 neighborhood using a float array for storing result.

Example of use:

	float[] floatWeights = ChamferWeights.BORGEFORS.getFloatWeights();
	boolean normalize = true;
	DistanceTransform dt = new DistanceTransform3x3Float(floatWeights, normalize);
	ImageProcessor result = dt.distanceMap(inputImage);
	// or:
	ImagePlus resultPlus = BinaryImages.distanceMap(imagePlus, floatWeights, normalize);

Author:

David Legland

See Also:

BinaryImages.distanceMap(ImageProcessor, short[], boolean), DistanceTransform, DistanceTransform3x3Short

Constructor Summary

Constructors

Constructor and Description
DistanceTransform3x3Float(ChamferWeights weights, boolean normalize) Deprecated. Constructor specifying the chamfer weights and the optional normalization.
DistanceTransform3x3Float(float[] weights) Deprecated. Default constructor that specifies the chamfer weights.
DistanceTransform3x3Float(float[] weights, boolean normalize) Deprecated. Constructor specifying the chamfer weights and the optional normalization.

Method Summary

Modifier and Type	Method and Description
ij.process.FloatProcessor	distanceMap(ij.process.ImageProcessor labelImage) Deprecated. Computes the distance map of the distance to the nearest pixel with a different value.

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

DistanceTransform3x3Float

public DistanceTransform3x3Float(float[] weights)

Deprecated.

Default constructor that specifies the chamfer weights.

Parameters:

weights - an array of two weights for orthogonal and diagonal directions

DistanceTransform3x3Float

public DistanceTransform3x3Float(ChamferWeights weights,
                                 boolean normalize)

Deprecated.

Constructor specifying the chamfer weights and the optional normalization.

Parameters:

weights - an array of two weights for orthogonal and diagonal directions

normalize - flag indicating whether the final distance map should be normalized by the first weight

DistanceTransform3x3Float

public DistanceTransform3x3Float(float[] weights,
                                 boolean normalize)

Deprecated.

Constructor specifying the chamfer weights and the optional normalization.

Parameters:

weights - an array of two weights for orthogonal and diagonal directions

normalize - flag indicating whether the final distance map should be normalized by the first weight

Method Detail

distanceMap

public ij.process.FloatProcessor distanceMap(ij.process.ImageProcessor labelImage)

Deprecated.

Computes the distance map of the distance to the nearest pixel with a different value. The function returns a new short processor the same size as the input, with values greater or equal to zero.

Specified by:

distanceMap in interface DistanceTransform

Parameters:

labelImage - a label image with black pixels (0) as foreground

Returns:

a new instance of FloatProcessor containing:

• 0 for each background pixel
• the (strictly positive) distance to the nearest background pixel otherwise