org.hkijena.jipipe.plugins.imagejalgorithms.utils

Class HoughLineSegments

java.lang.Object

org.hkijena.jipipe.plugins.imagejalgorithms.utils.HoughLineSegments

public class HoughLineSegments
extends Object

Implementation of Octave's Hough Line segments Based on code by Hartmut Gimpel

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	HoughLineSegments.HoughResult
static class	HoughLineSegments.Line

Constructor Summary

Constructors

Constructor and Description
HoughLineSegments()

Method Summary

Modifier and Type	Method and Description
static void	extendLine(Point first, Point last, Dimension imageSize)
static HoughLineSegments.HoughResult	hough(ij.process.ImageProcessor bw, List<Double> thetas)
static List<HoughLineSegments.Line>	houghGlobalLines(ij.process.ImageProcessor BW, List<Double> thetas, List<Double> rhos, List<Point> peaks, double minLength, Dimension imageSize, JIPipeProgressInfo progressInfo)
static List<HoughLineSegments.Line>	houghLineSegments(ij.process.ImageProcessor BW, List<Double> thetas, List<Double> rhos, List<Point> peaks, double fillGap, double minLength, boolean fastMode, JIPipeProgressInfo progressInfo)
static List<Point>	houghPeaks(ij.process.FloatProcessor H, int numPeaks, double threshold, int[] neighborhoodSize, JIPipeProgressInfo progressInfo) Implementation of Hough Peaks

Methods inherited from class java.lang.Object

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

Constructor Detail

HoughLineSegments

public HoughLineSegments()

Method Detail

houghLineSegments

public static List<HoughLineSegments.Line> houghLineSegments(ij.process.ImageProcessor BW,
                                                             List<Double> thetas,
                                                             List<Double> rhos,
                                                             List<Point> peaks,
                                                             double fillGap,
                                                             double minLength,
                                                             boolean fastMode,
                                                             JIPipeProgressInfo progressInfo)

houghGlobalLines

public static List<HoughLineSegments.Line> houghGlobalLines(ij.process.ImageProcessor BW,
                                                            List<Double> thetas,
                                                            List<Double> rhos,
                                                            List<Point> peaks,
                                                            double minLength,
                                                            Dimension imageSize,
                                                            JIPipeProgressInfo progressInfo)

extendLine

public static void extendLine(Point first,
                              Point last,
                              Dimension imageSize)

houghPeaks

public static List<Point> houghPeaks(ij.process.FloatProcessor H,
                                     int numPeaks,
                                     double threshold,
                                     int[] neighborhoodSize,
                                     JIPipeProgressInfo progressInfo)

Implementation of Hough Peaks

Parameters:

H - Hough Array (generated by the hough function)

numPeaks - number of peaks

threshold - the threshold (if less than 0, it's 0.5 * MAX(H))

neighborhoodSize - neighborhood size. array with length 2. defaults to [height / 50, width / 50] if null. must be positive odd integers.

Returns:

the peaks

hough

public static HoughLineSegments.HoughResult hough(ij.process.ImageProcessor bw,
                                                  List<Double> thetas)