org.openimaj.hadoop.tools.image.indexing

Class HadoopSiftLSHExtractor

java.lang.Object

org.apache.hadoop.conf.Configured

org.openimaj.hadoop.tools.image.indexing.HadoopSiftLSHExtractor

All Implemented Interfaces:

org.apache.hadoop.conf.Configurable, org.apache.hadoop.util.Tool

public class HadoopSiftLSHExtractor
extends org.apache.hadoop.conf.Configured
implements org.apache.hadoop.util.Tool

Tool to convert SIFT features to LSH sketch form. Mapper is -> <(index,hash), key>

Reducer output is for each index

Author:

Jonathon Hare (jsh2@ecs.soton.ac.uk)

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	HadoopSiftLSHExtractor.LSHGroupingComparator Comparator to group the maps outputs by their HadoopSiftLSHExtractor.MapperOut.hash.
static class	HadoopSiftLSHExtractor.LSHMapper
static class	HadoopSiftLSHExtractor.LSHPartitioner Partitioner that sends the data to a reducer based on the HadoopSiftLSHExtractor.MapperOut.index.
static class	HadoopSiftLSHExtractor.LSHReducer
static class	HadoopSiftLSHExtractor.MapperOut
static class	HadoopSiftLSHExtractor.Sketcher

Constructor Summary

Constructors

Constructor and Description
HadoopSiftLSHExtractor()

Method Summary

Modifier and Type	Method and Description
static void	main(String[] args) Main method
int	run(String[] args)

Methods inherited from class org.apache.hadoop.conf.Configured

getConf, setConf

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hadoop.conf.Configurable

getConf, setConf

Constructor Detail

HadoopSiftLSHExtractor

public HadoopSiftLSHExtractor()

Method Detail

run

public int run(String[] args)
        throws Exception

Specified by:

run in interface org.apache.hadoop.util.Tool

Throws:

Exception

main

public static void main(String[] args)
                 throws Exception

Main method

Parameters:

args -

Throws:

Exception