Package com.crawljax.stateabstractions.visual.imagehashes

Class DHash

java.lang.Object

com.crawljax.stateabstractions.visual.imagehashes.DHash

public class DHash
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
private static org.slf4j.Logger	LOG

Constructor Summary

Constructors

Constructor	Description
DHash()

Method Summary

Modifier and Type	Method	Description
static Integer	distance(String h1, String h2)	Calculate the Hamming distance between two hashes
String	getDHash(BufferedImage image)
String	getDHash(String imgPath)
String	getDHash(org.opencv.core.Mat objectImage)
boolean	imagesPerceptuallySimilar(BufferedImage img1, BufferedImage img2)
boolean	imagesPerceptuallySimilar(String img1, String img2)	compares the DHash of two images and return whether they are perceptually similar (max 10 different pixels allowed)
boolean	imagesPerceptuallySimilar(String img1, String img2, int threshold)	compares the DHash of two images and return whether they are perceptually similar (max

Methods inherited from class java.lang.Object

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

Field Detail

LOG

private static final org.slf4j.Logger LOG

Constructor Detail

DHash

public DHash()

Method Detail

distance

public static Integer distance(String h1,
                               String h2)

Calculate the Hamming distance between two hashes

Parameters:

h1 -

h2 -

Returns:

getDHash

public String getDHash(org.opencv.core.Mat objectImage)

getDHash

public String getDHash(BufferedImage image)
                throws IOException

Throws:

IOException

getDHash

public String getDHash(String imgPath)

imagesPerceptuallySimilar

public boolean imagesPerceptuallySimilar(String img1,
                                         String img2)

compares the DHash of two images and return whether they are perceptually similar (max 10 different pixels allowed)

Parameters:

img1 -

img2 -

Returns:

true/false

imagesPerceptuallySimilar

public boolean imagesPerceptuallySimilar(BufferedImage img1,
                                         BufferedImage img2)
                                  throws IOException

Throws:

IOException

imagesPerceptuallySimilar

public boolean imagesPerceptuallySimilar(String img1,
                                         String img2,
                                         int threshold)

compares the DHash of two images and return whether they are perceptually similar (max

Parameters:

img1 -

img2 -

threshold -

Returns:

true/false for threshold different pixels allowed)