org.deeplearning4j.datasets.fetchers

Class SvhnDataFetcher

java.lang.Object

org.deeplearning4j.datasets.fetchers.CacheableExtractableDataSetFetcher

org.deeplearning4j.datasets.fetchers.SvhnDataFetcher

public class SvhnDataFetcher
extends CacheableExtractableDataSetFetcher

The Street View House Numbers (SVHN) Dataset is a real-world image dataset for developing machine learning and object recognition algorithms with minimal requirement on data preprocessing and formatting. The SVHN datasets contain 10 classes (digits) with 73257 digits for training, 26032 digits for testing, and 531131 extra. Datasets in "Format 1: Full Numbers" are fetched. See: http://ufldl.stanford.edu/housenumbers/

Author:

saudet

Field Summary

Fields

Modifier and Type	Field and Description
static int	NUM_LABELS

Fields inherited from class org.deeplearning4j.datasets.fetchers.CacheableExtractableDataSetFetcher

DL4J_DIR, LOCAL_CACHE, ROOT_CACHE_DIR

Constructor Summary

Constructors

Constructor and Description
SvhnDataFetcher()

Method Summary

Modifier and Type	Method and Description
String	dataSetName(DataSetType set)
long	expectedChecksum(DataSetType set)
File	getDataSetPath(DataSetType set)
org.datavec.api.records.reader.RecordReader	getRecordReader(long rngSeed, int[] imgDim, DataSetType set, org.datavec.image.transform.ImageTransform imageTransform)
String	localCacheName()
String	remoteDataUrl(DataSetType set)

Methods inherited from class org.deeplearning4j.datasets.fetchers.CacheableExtractableDataSetFetcher

downloadAndExtract, downloadAndExtract, expectedChecksum, isCached, remoteDataUrl

Methods inherited from class java.lang.Object

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

Field Detail

NUM_LABELS

public static int NUM_LABELS

Constructor Detail

SvhnDataFetcher

public SvhnDataFetcher()

Method Detail

remoteDataUrl

public String remoteDataUrl(DataSetType set)

localCacheName

public String localCacheName()

dataSetName

public String dataSetName(DataSetType set)

Overrides:

dataSetName in class CacheableExtractableDataSetFetcher

expectedChecksum

public long expectedChecksum(DataSetType set)

getDataSetPath

public File getDataSetPath(DataSetType set)
                    throws IOException

Throws:

IOException

getRecordReader

public org.datavec.api.records.reader.RecordReader getRecordReader(long rngSeed,
                                                                   int[] imgDim,
                                                                   DataSetType set,
                                                                   org.datavec.image.transform.ImageTransform imageTransform)