net.semanticmetadata.lire.searchers

类 MetricSpacesImageSearcher

java.lang.Object

net.semanticmetadata.lire.searchers.AbstractImageSearcher

net.semanticmetadata.lire.searchers.MetricSpacesImageSearcher

所有已实现的接口:

ImageSearcher

public class MetricSpacesImageSearcher
extends AbstractImageSearcher

This class allows for searching based on BitSampling HashingMode. First a number of candidates is retrieved from the index, then the candidates are re-ranked. The number of candidates can be tuned with the numHashedResults parameter in the constructor. The higher this parameter, the better the results, but the slower the search.

作者:

Mathias Lux, mathias@juggle.at, 2013-04-12

构造器概要

构造器

构造器和说明
MetricSpacesImageSearcher(int maximumHits, java.io.File referencePointFile) Creates a new searcher for MetricSpaces based indexed features.The field names are inferred from the entries in the reference point file.
MetricSpacesImageSearcher(int maximumHits, java.io.File referencePointFile, int numHashedResults) Creates a new searcher for MetricSpaces based indexed features.

方法概要

限定符和类型	方法和说明
ImageDuplicates	findDuplicates(org.apache.lucene.index.IndexReader reader) Identifies duplicates in the database.
int	getNumHashesUsedForQuery()
ImageSearchHits	search(java.awt.image.BufferedImage image, org.apache.lucene.index.IndexReader reader) Searches for images similar to the given image.
ImageSearchHits	search(org.apache.lucene.document.Document doc, org.apache.lucene.index.IndexReader reader) Searches for images similar to the given image, defined by the Document from the index.
void	setNumHashesUsedForQuery(int numHashesUsedForQuery)

从类继承的方法 net.semanticmetadata.lire.searchers.AbstractImageSearcher

relevanceFeedback, search

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

MetricSpacesImageSearcher

public MetricSpacesImageSearcher(int maximumHits,
                                 java.io.File referencePointFile)
                          throws java.lang.IllegalAccessException,
                                 java.lang.InstantiationException,
                                 java.lang.ClassNotFoundException

Creates a new searcher for MetricSpaces based indexed features.The field names are inferred from the entries in the reference point file.

参数:

maximumHits - how many hits the searcher shall return.

referencePointFile - the file created by MetricSpaces

抛出:

java.lang.IllegalAccessException

java.lang.InstantiationException

java.lang.ClassNotFoundException

另请参阅:

MetricSpaces.indexReferencePoints(Class, int, int, File, File)

MetricSpacesImageSearcher

public MetricSpacesImageSearcher(int maximumHits,
                                 java.io.File referencePointFile,
                                 int numHashedResults)
                          throws java.lang.IllegalAccessException,
                                 java.lang.InstantiationException,
                                 java.lang.ClassNotFoundException

Creates a new searcher for MetricSpaces based indexed features. The field names are inferred from the entries in the reference point file.

参数:

maximumHits - how many hits the searcher shall return.

referencePointFile - the file created by MetricSpaces

numHashedResults - the number of candidate results retrieved from the index before re-ranking.

抛出:

java.lang.IllegalAccessException

java.lang.InstantiationException

java.lang.ClassNotFoundException

另请参阅:

MetricSpaces.indexReferencePoints(Class, int, int, File, File)

方法详细资料

search

public ImageSearchHits search(java.awt.image.BufferedImage image,
                              org.apache.lucene.index.IndexReader reader)
                       throws java.io.IOException

从接口复制的说明: ImageSearcher

Searches for images similar to the given image.

参数:

image - the example image to search for.

reader - the IndexReader which is used to search through the images.

返回:

a sorted list of hits.

抛出:

java.io.IOException - in case exceptions in the reader occurs

search

public ImageSearchHits search(org.apache.lucene.document.Document doc,
                              org.apache.lucene.index.IndexReader reader)
                       throws java.io.IOException

从接口复制的说明: ImageSearcher

Searches for images similar to the given image, defined by the Document from the index.

参数:

doc - the example image to search for.

reader - the IndexReader which is used to dsearch through the images.

返回:

a sorted list of hits.

抛出:

java.io.IOException - in case exceptions in the reader occurs

findDuplicates

public ImageDuplicates findDuplicates(org.apache.lucene.index.IndexReader reader)
                               throws java.io.IOException

从接口复制的说明: ImageSearcher

Identifies duplicates in the database.

参数:

reader - the IndexReader which is used to dsearch through the images.

返回:

a sorted list of hits.

抛出:

java.io.IOException - in case the image could not be read from stream.

getNumHashesUsedForQuery

public int getNumHashesUsedForQuery()

setNumHashesUsedForQuery

public void setNumHashesUsedForQuery(int numHashesUsedForQuery)