Package edu.gsu.cs.dmlab.imageproc.edgedetection

Class CannyEdgeDetectorOpenImaj

java.lang.Object

edu.gsu.cs.dmlab.imageproc.edgedetection.CannyEdgeDetectorOpenImaj

All Implemented Interfaces:

IEdgeDetector

public class CannyEdgeDetectorOpenImaj
extends Object
implements IEdgeDetector

This class is only a wrapper for the external class org.openimaj.image.processing.edges.CannyEdgeDetector.CannyEdgeDetector. This is needed since in our library any edge detector class must implement IEdgeDetector interface.

Author:

Azim Ahmadzadeh, Data Mining Lab, Georgia State University

Constructor Summary

Constructors

Constructor	Description
CannyEdgeDetectorOpenImaj(float lt, float ht, float s)

Method Summary

Modifier and Type	Method	Description
double[][]	convertFloatToDouble(float[][] input)	Converts a 2D array of floats to doubles
double[][]	getEdges(double[][] sourceImg, double[] colors)	This method extracts the edges of the given image by following the following three steps: 1) Compute gradient, 2) Perform Hysteresis, 3) Thresholding.

Methods inherited from class java.lang.Object

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

Constructor Detail

CannyEdgeDetectorOpenImaj

public CannyEdgeDetectorOpenImaj(float lt,
                                 float ht,
                                 float s)

Method Detail

getEdges

public double[][] getEdges(double[][] sourceImg,
                           double[] colors)

Description copied from interface: IEdgeDetector

This method extracts the edges of the given image by following the following three steps: 1) Compute gradient, 2) Perform Hysteresis, 3) Thresholding.

Specified by:

getEdges in interface IEdgeDetector

Parameters:

sourceImg - The source image whose edges are to be extracted.

colors - An array of length two that specofies the background and edge color of the finla results. The first cell carries the background color intensity and its second cell carries the foreground color intensity. (Examples: new double{0.0, 255.0})

Returns:

A 2D binary array representing the edges and the background.

convertFloatToDouble

public double[][] convertFloatToDouble(float[][] input)

Converts a 2D array of floats to doubles

Parameters:

input -

Returns: