net.gdface.sdk.fse

Class BaseFeatureSearchEngine.FeatureSeImpl

java.lang.Object

net.gdface.sdk.fse.BaseFeatureSeImpl

net.gdface.sdk.fse.BaseFeatureSearchEngine.FeatureSeImpl

All Implemented Interfaces:

FeatureSe

Enclosing class:

BaseFeatureSearchEngine

public static class BaseFeatureSearchEngine.FeatureSeImpl
extends BaseFeatureSeImpl

实现FeatureSe

Author:

guyadong

Constructor Summary

Constructors

Constructor and Description
FeatureSeImpl(java.lang.String name)

Method Summary

Modifier and Type	Method and Description
boolean	addFeature(byte[] featureId, byte[] feature, long appid) 添加一条特征码到内存表
boolean	addFeature(byte[] featureId, byte[] feature, java.lang.String imgMD5) 添加一条特征码到内存表
void	clearAll() 删除内存表中所有特征数据
CodeBean	getFeature(byte[] featureId) 根据特征码ID在表中查找指定的记录
boolean	removeFeature(byte[] featureId) 根据特征码ID中表中删除指定的记录
CodeBean[]	searchCode(byte[] code, double sim, int rows) 在内存表中根据比对相似度进行特征码搜索
int	size()
java.lang.String	toString()

Methods inherited from class net.gdface.sdk.fse.BaseFeatureSeImpl

getFeatureByHex, removeFeatureByHex

Methods inherited from class java.lang.Object

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

Constructor Detail

FeatureSeImpl

public FeatureSeImpl(java.lang.String name)

Parameters:

name - 封装实现FseJniBridge的类名，用于区分实例

Method Detail

searchCode

public CodeBean[] searchCode(byte[] code,
                             double sim,
                             int rows)

Description copied from interface: FeatureSe

在内存表中根据比对相似度进行特征码搜索

Parameters:

code - 要比对的特征码

sim - 相似度阀值

rows - 最大返回的记录数

Returns:

返回包含相似度(降序)的结果数组,如果没有查到匹配的记录则返回空数组

getFeature

public CodeBean getFeature(byte[] featureId)

Description copied from interface: FeatureSe

根据特征码ID在表中查找指定的记录

Parameters:

featureId - 特征码ID,MD5校验码(16 bytes)

Returns:

返回指定的特征记录,没有找到则返回null,featureId为null或空返回null

addFeature

public boolean addFeature(byte[] featureId,
                          byte[] feature,
                          java.lang.String imgMD5)

Description copied from interface: FeatureSe

添加一条特征码到内存表

Parameters:

featureId - 特征码ID(MD5校验码),为null时,native library会自动计算MD5作为特征码ID

feature - 特征码字节数组,为null时返回false

imgMD5 - 特征所属图的MD5(32字节HEX字符串),可为null

Returns:

添加成功返回true, 否则返回false

addFeature

public boolean addFeature(byte[] featureId,
                          byte[] feature,
                          long appid)

Description copied from interface: FeatureSe

添加一条特征码到内存表

Parameters:

featureId - 特征码ID(MD5校验码),为null时,native library会自动计算MD5作为特征码ID

feature - 特征码字节数组,为null时返回false

appid - 应用id,由调用者定义,可为null

Returns:

添加成功返回true, 否则返回false

removeFeature

public boolean removeFeature(byte[] featureId)

Description copied from interface: FeatureSe

根据特征码ID中表中删除指定的记录

Parameters:

featureId - 特征码ID,MD5校验码(16 bytes)

Returns:

成功删除则返回true,否则返回false

clearAll

public void clearAll()

Description copied from interface: FeatureSe

删除内存表中所有特征数据

size

public int size()

Returns:

内存表中元素个数

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object