inra.ijpb.measure.region2d

Class MaxFeretDiameter

java.lang.Object

inra.ijpb.algo.AlgoStub

inra.ijpb.measure.region2d.RegionAnalyzer2D<PointPair2D>

inra.ijpb.measure.region2d.MaxFeretDiameter

All Implemented Interfaces:

Algo, RegionAnalyzer<PointPair2D>

public class MaxFeretDiameter
extends RegionAnalyzer2D<PointPair2D>

Computes maximum Feret Diameter for each region of a binary or label image.

Author:

dlegland

See Also:

MaxFeretDiameter3D

Constructor Summary

Constructors

Constructor and Description
MaxFeretDiameter() Default constructor

Method Summary

Modifier and Type	Method and Description
PointPair2D	analyzeBinary(ij.process.ImageProcessor image, double[] calib) Computes Maximum Feret diameter from a single region in a binary image.
PointPair2D[]	analyzeRegions(ij.process.ImageProcessor image, int[] labels, ij.measure.Calibration calib) Computes maximum Feret Diameter for each label of the input label image.
ij.measure.ResultsTable	createTable(Map<Integer,PointPair2D> maxDiamsMap) Converts the result of maximum Feret diameters computation to a ResultsTable that can be displayed within ImageJ.
static PointPair2D[]	maxFeretDiameters(ij.process.ImageProcessor image, int[] labels, ij.measure.Calibration calib) Computes Feret diameters as a PointPair2D for each of the specified regions within a label map.

Methods inherited from class inra.ijpb.measure.region2d.RegionAnalyzer2D

analyzeRegions, analyzeRegions, computeTable

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

Constructor Detail

MaxFeretDiameter

public MaxFeretDiameter()

Default constructor

Method Detail

maxFeretDiameters

public static final PointPair2D[] maxFeretDiameters(ij.process.ImageProcessor image,
                                                    int[] labels,
                                                    ij.measure.Calibration calib)

Computes Feret diameters as a PointPair2D for each of the specified regions within a label map.

Parameters:

image - the label map corresponding to the label image

labels - the array of region labels to process

calib - the spatial calibration of the image

Returns:

the array of Feret diameter results

createTable

public ij.measure.ResultsTable createTable(Map<Integer,PointPair2D> maxDiamsMap)

Converts the result of maximum Feret diameters computation to a ResultsTable that can be displayed within ImageJ.

Parameters:

maxDiamsMap - the map of PointPair2D for each label within a label image

Returns:

a ResultsTable instance

analyzeRegions

public PointPair2D[] analyzeRegions(ij.process.ImageProcessor image,
                                    int[] labels,
                                    ij.measure.Calibration calib)

Computes maximum Feret Diameter for each label of the input label image. Computes diameter between corners of image pixels, so the result is always greater than or equal to one.

Specified by:

analyzeRegions in class RegionAnalyzer2D<PointPair2D>

Parameters:

image - a label image (8, 16 or 32 bits)

labels - the set of labels within the image

calib - the spatial calibration of the image

Returns:

an array of PointPair2D representing the coordinates of extreme points, in calibrated coordinates.

analyzeBinary

public PointPair2D analyzeBinary(ij.process.ImageProcessor image,
                                 double[] calib)

Computes Maximum Feret diameter from a single region in a binary image. Computes diameter between corners of image pixels, so the result is always greater than or equal to one.

Parameters:

image - a binary image representing the particle.

calib - the spatial calibration

Returns:

the maximum Feret diameter of the binary region