de.lmu.ifi.dbs.jfeaturelib.pointDetector

Class Moravec

java.lang.Object

de.lmu.ifi.dbs.jfeaturelib.pointDetector.Moravec

All Implemented Interfaces:

Descriptor, PointDetector

public class Moravec
extends Object
implements PointDetector

Moravec Corner Detector. This implementation is based on the Original Paper from Moravec, 1980. See link below. And also based on the Aricle from Donovan Parks and Jean-Philippe Gravel. Also see link below. This implementation does differ from the Wikipedia Article about the Moravec Detector! See http://www.ri.cmu.edu/pub_files/pub4/moravec_hans_1980_1/moravec_hans_1980_1.pdf and http://kiwi.cs.dal.ca/~dparks/CornerDetection/moravec.htm for more information

Author:

Robert Zelhofer

Nested Class Summary

Nested classes/interfaces inherited from interface de.lmu.ifi.dbs.jfeaturelib.Descriptor

Descriptor.Supports

Field Summary

Fields inherited from interface de.lmu.ifi.dbs.jfeaturelib.Descriptor

DOES_ALL

Constructor Summary

Constructors

Constructor and Description
Moravec() Creates Moravec Detector with Default values: Threshold = 500
Moravec(int threshold) Creates Moravec Detector
Moravec(int threshold, int size) Creates Moravec Detector

Method Summary

Methods

Modifier and Type	Method and Description
void	addPropertyChangeListener(PropertyChangeListener listener) Adds a change listener to this descriptor.
List<ImagePoint>	getPoints()
void	run(ij.process.ImageProcessor ip) Start processing of this algorithm on the given image processor.
EnumSet<Descriptor.Supports>	supports() Determine the capabilities of this algorithm.

Methods inherited from class java.lang.Object

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

Constructor Detail

Moravec

public Moravec()

Creates Moravec Detector with Default values: Threshold = 500

Moravec

public Moravec(int threshold)

Creates Moravec Detector

Parameters:

threshold - Threshold Value, which is used for filtering uninteresting Points

Moravec

public Moravec(int threshold,
       int size)

Creates Moravec Detector

Parameters:

threshold - Threshold Value, which is used for filtering uninteresting Points

size - Window Size. Must be Odd and >= 3. Used for Initial Search for Corners and Search for Local Maximums.

Method Detail

getPoints

public List<ImagePoint> getPoints()

Specified by:

getPoints in interface PointDetector

supports

public EnumSet<Descriptor.Supports> supports()

Description copied from interface: Descriptor

Determine the capabilities of this algorithm.

Specified by:

supports in interface Descriptor

Returns:

the set of supported capabilities.

run

public void run(ij.process.ImageProcessor ip)

Description copied from interface: Descriptor

Start processing of this algorithm on the given image processor. Keep in mind that if the imageProcessor is changed, Supports.NoChanges must not be set. This is also the case even if only ImageProcessor.snapshot() is used.

Specified by:

run in interface Descriptor

addPropertyChangeListener

public void addPropertyChangeListener(PropertyChangeListener listener)

Description copied from interface: Descriptor

Adds a change listener to this descriptor. The descriptor might fire status change events which can be used to track the progress. Keep in mind that no implementation is forced to fire any events at all.

Specified by:

addPropertyChangeListener in interface Descriptor