org.openimaj.image.processing.face.recognition.benchmarking.dataset

Class TextFileDataset

java.lang.Object

java.util.AbstractMap<KEY,DATASET>

org.openimaj.data.dataset.MapBackedDataset<String,ListDataset<FImage>,FImage>

org.openimaj.image.processing.face.recognition.benchmarking.dataset.TextFileDataset

All Implemented Interfaces:

Iterable<FImage>, Map<String,ListDataset<FImage>>, Dataset<FImage>, GroupedDataset<String,ListDataset<FImage>,FImage>

public class TextFileDataset
extends MapBackedDataset<String,ListDataset<FImage>,FImage>

A simple dataset of people and their images, backed by a text file with the following format:

  personA,/path/to/image.jpg
  personA,/path/to/image1.jpg
  personB,/path/to/image2.jpg
  ...
 

The default separator is a comma, but is user controllable.

In addition to allowing datasets to be read from a file, this implementation also allows datasets to be created or appended to through the add(String, File) method.

Author:

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

Nested Class Summary

Nested classes/interfaces inherited from class org.openimaj.data.dataset.MapBackedDataset

MapBackedDataset.IdentifiableBuilder<DATASET extends Dataset<INSTANCE> & Identifiable,INSTANCE>

Nested classes/interfaces inherited from class java.util.AbstractMap

AbstractMap.SimpleEntry<K,V>, AbstractMap.SimpleImmutableEntry<K,V>

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K,V>

Field Summary

Fields inherited from class org.openimaj.data.dataset.MapBackedDataset

map

Constructor Summary

Constructors

Constructor and Description
TextFileDataset(File file) Construct from the given file.
TextFileDataset(File file, String separator) Construct from the given file, using the given separator.

Method Summary

Modifier and Type	Method and Description
void	add(String person, File file) Add an instance to the dataset.
protected void	finalize()
String	toString()

Methods inherited from class org.openimaj.data.dataset.MapBackedDataset

add, builder, entrySet, getGroups, getInstances, getMap, getRandomInstance, getRandomInstance, iterator, numInstances, of, of, of, of, of, of, of, put

Methods inherited from class java.util.AbstractMap

clear, clone, containsKey, containsValue, equals, get, hashCode, isEmpty, keySet, putAll, remove, size, values

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Methods inherited from interface java.util.Map

clear, compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, equals, forEach, get, getOrDefault, hashCode, isEmpty, keySet, merge, putAll, putIfAbsent, remove, remove, replace, replace, replaceAll, size, values

Constructor Detail

TextFileDataset

public TextFileDataset(File file)
                throws IOException

Construct from the given file. The default separator of a comma "," will be used.

Parameters:

file - the file

Throws:

IOException - if an error occurs

TextFileDataset

public TextFileDataset(File file,
                       String separator)
                throws IOException

Construct from the given file, using the given separator.

Parameters:

file - the file

separator - the separator

Throws:

IOException - if an error occurs

Method Detail

finalize

protected void finalize()
                 throws Throwable

Overrides:

finalize in class Object

Throws:

Throwable

add

public void add(String person,
                File file)
         throws IOException

Add an instance to the dataset.

Parameters:

person -

file -

Throws:

IOException

toString

public String toString()

Overrides:

toString in class MapBackedDataset<String,ListDataset<FImage>,FImage>