net.semanticmetadata.lire.imageanalysis.features.global.centrist

类 SimpleCentrist

java.lang.Object

net.semanticmetadata.lire.imageanalysis.features.global.centrist.SimpleCentrist

所有已实现的接口:

Extractor, FeatureVector, GlobalFeature, LireFeature

public class SimpleCentrist
extends java.lang.Object
implements GlobalFeature

CENTRIST (CENsus TRansform hISTogram) descriptor based on the implementation described in Jianxin Wu; Rehg, J.M., "CENTRIST: A Visual Descriptor for Scene Categorization," Pattern Analysis and Machine Intelligence, IEEE Transactions on , vol.33, no.8, pp.1489,1501, Aug. 2011, doi: 10.1109/TPAMI.2010.224, http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=5674051&isnumber=5898466/

This class provides a basic global histogram based on the CENTRIST feature. For the original implementation, which uses a spatial pyramid, please see SpatialPyramidCentrist.

作者:

Mathias Lux, mathias@juggle.at and Lukas Knoch, lukas.knoch@aau.at

另请参阅:

for the original descriptor of the paper.

构造器概要

构造器

构造器和说明
SimpleCentrist()

方法概要

限定符和类型	方法和说明
void	extract(java.awt.image.BufferedImage image) Extracts the feature vector from a BufferedImage.
byte[]	getByteArrayRepresentation() Returns a compact byte[] based representation of the feature vector.
double	getDistance(LireFeature feature) 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[] featureData) Sets the feature vector values based on the byte[] data.
void	setByteArrayRepresentation(byte[] featureData, int offset, int length) Sets the feature vector values based on the byte[] data.

从类继承的方法 java.lang.Object

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

构造器详细资料

SimpleCentrist

public SimpleCentrist()

方法详细资料

extract

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

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:

image - the source image

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.

getByteArrayRepresentation

public byte[] getByteArrayRepresentation()

从接口复制的说明: LireFeature

Returns a compact byte[] based representation of the feature vector.

指定者:

getByteArrayRepresentation 在接口中 LireFeature

返回:

a compact byte[] array containing the feature vector.

另请参阅:

LireFeature.setByteArrayRepresentation(byte[])

setByteArrayRepresentation

public void setByteArrayRepresentation(byte[] featureData)

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:

featureData - the byte[] data.

另请参阅:

LireFeature.getByteArrayRepresentation()

setByteArrayRepresentation

public void setByteArrayRepresentation(byte[] featureData,
                                       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:

featureData - 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()

getDistance

public double getDistance(LireFeature feature)

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:

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

返回:

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

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.