net.semanticmetadata.lire.imageanalysis.features.global

类 FCTH

java.lang.Object

net.semanticmetadata.lire.imageanalysis.features.global.FCTH

所有已实现的接口:

Extractor, FeatureVector, GlobalFeature, LireFeature

public class FCTH
extends java.lang.Object
implements GlobalFeature

The FCTH feature was created, implemented and provided by Savvas A. Chatzichristofis
More information can be found in: Savvas A. Chatzichristofis and Yiannis S. Boutalis, FCTH: Fuzzy Color and Texture Histogram - A Low Level Feature for Accurate Image Retrieval, in Proceedings of the Ninth International Workshop on Image Analysis for Multimedia Interactive Services, IEEE, Klagenfurt, May, 2008.

字段概要

字段

限定符和类型	字段和说明
boolean	Compact
protected double[]	histogram

构造器概要

构造器

构造器和说明
FCTH()

方法概要

限定符和类型	方法和说明
double[]	Apply(java.awt.image.BufferedImage image)
void	extract(java.awt.image.BufferedImage bimg) Extracts the feature vector from a BufferedImage.
byte[]	getByteArrayRepresentation() Creates a small byte array from an FCTH descriptor.
double	getDistance(LireFeature vd) The distance function for this type of feature
java.lang.String	getFeatureName() Gives a descriptive name of the feature, i.e. a name to show up in benchmarks, menus, UIs, etc.
double[]	getFeatureVector() Convenience method to get the feature vector as double[] array.
java.lang.String	getFieldName() Returns the preferred field name for indexing.
void	setByteArrayRepresentation(byte[] in) Reads descriptor from a byte array.
void	setByteArrayRepresentation(byte[] in, int offset, int length) Sets the feature vector values based on the byte[] data.
java.lang.String	toString()

从类继承的方法 java.lang.Object

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

字段详细资料

Compact

public boolean Compact

histogram

protected double[] histogram

构造器详细资料

FCTH

public FCTH()

方法详细资料

Apply

public double[] Apply(java.awt.image.BufferedImage image)

extract

public void extract(java.awt.image.BufferedImage bimg)

从接口复制的说明: Extractor

Extracts the feature vector from a BufferedImage.

指定者:

extract 在接口中 Extractor

参数:

bimg - the source image

getByteArrayRepresentation

public byte[] getByteArrayRepresentation()

Creates a small byte array from an FCTH descriptor. Stuffs 2 numbers into one byte and omits all but 1 of the trailing 0's.

指定者:

getByteArrayRepresentation 在接口中 LireFeature

返回:

另请参阅:

LireFeature.setByteArrayRepresentation(byte[])

setByteArrayRepresentation

public void setByteArrayRepresentation(byte[] in)

Reads descriptor from a byte array. Much faster than the String based method.

指定者:

setByteArrayRepresentation 在接口中 LireFeature

参数:

in - byte array from corresponding method

另请参阅:

CEDD.getByteArrayRepresentation()

setByteArrayRepresentation

public void setByteArrayRepresentation(byte[] in,
                                       int offset,
                                       int length)

从接口复制的说明: LireFeature

Sets the feature vector values based on the byte[] data. Use LireFeature.getByteArrayRepresentation() to generate a compatible byte[] array.

指定者:

setByteArrayRepresentation 在接口中 LireFeature

参数:

in - the byte[] array containing the data.

offset - the offset, i.e. where the feature vector starts.

length - the length of the data representing the feature vector.

另请参阅:

LireFeature.getByteArrayRepresentation()

getFeatureVector

public double[] getFeatureVector()

从接口复制的说明: FeatureVector

Convenience method to get the feature vector as double[] array. This method is used by classifiers, etc.

指定者:

getFeatureVector 在接口中 FeatureVector

返回:

the feature vector as a double[] array.

getDistance

public double getDistance(LireFeature vd)

从接口复制的说明: LireFeature

The distance function for this type of feature

指定者:

getDistance 在接口中 LireFeature

参数:

vd - the feature vector to compare the current instance to.

返回:

the distance (or dissimilarity) between the instance and the parameter.

toString

public java.lang.String toString()

覆盖:

toString 在类中 java.lang.Object

getFeatureName

public java.lang.String getFeatureName()

从接口复制的说明: LireFeature

Gives a descriptive name of the feature, i.e. a name to show up in benchmarks, menus, UIs, etc.

指定者:

getFeatureName 在接口中 LireFeature

返回:

the name of the feature.

getFieldName

public java.lang.String getFieldName()

从接口复制的说明: LireFeature

Returns the preferred field name for indexing.

指定者:

getFieldName 在接口中 LireFeature

返回:

the field name preferred for indexing in a Lucene index.