Package org.datavec.image.loader

Class LFWLoader

java.lang.Object

org.datavec.image.loader.BaseImageLoader

org.datavec.image.loader.LFWLoader

All Implemented Interfaces:

Serializable

public class LFWLoader
extends BaseImageLoader
implements Serializable

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.datavec.image.loader.BaseImageLoader

BaseImageLoader.MultiPageMode

Field Summary

Fields

Modifier and Type	Field	Description
static int	CHANNELS
static String	DATA_URL
String	dataFile
static int	HEIGHT
protected InputSplit[]	inputSplit
static PathLabelGenerator	LABEL_PATTERN
static String	LABEL_URL
String	labelFile
static int	NUM_IMAGES
static int	NUM_LABELS
protected static String	REGEX_PATTERN
static int	SUB_NUM_IMAGES
static int	SUB_NUM_LABELS
static String	SUBSET_URL
String	subsetFile
protected boolean	useSubset
static int	WIDTH

Fields inherited from class org.datavec.image.loader.BaseImageLoader

ALLOWED_FORMATS, centerCropIfNeeded, channels, height, imageTransform, multiPageMode, rng, width

Constructor Summary

Constructors

Constructor	Description
LFWLoader()
LFWLoader(boolean useSubset)
LFWLoader(int[] imgDim, boolean useSubset)
LFWLoader(int[] imgDim, ImageTransform imgTransform, boolean useSubset)
LFWLoader(long[] imgDim, boolean useSubset)
LFWLoader(long[] imgDim, ImageTransform imgTransform, boolean useSubset)

Method Summary

Modifier and Type	Method	Description
Image	asImageMatrix(File f)	As per BaseImageLoader.asMatrix(File) but as an Image
Image	asImageMatrix(File f, boolean nchw)	As per BaseImageLoader.asMatrix(File, boolean) but as an Image
Image	asImageMatrix(InputStream inputStream)	As per BaseImageLoader.asMatrix(InputStream) but as an Image
Image	asImageMatrix(InputStream inputStream, boolean nchw)	As per BaseImageLoader.asMatrix(InputStream, boolean) but as an Image
INDArray	asMatrix(File f)	As per BaseImageLoader.asMatrix(File, boolean) but NCHW/channels_first format
INDArray	asMatrix(File f, boolean nchw)	Load an image from a file to an INDArray
INDArray	asMatrix(InputStream inputStream)
INDArray	asMatrix(InputStream inputStream, boolean nchw)	Load an image file from an input stream to an INDArray
INDArray	asRowVector(File f)
INDArray	asRowVector(InputStream inputStream)
RecordReader	getRecordReader(long numExamples)
RecordReader	getRecordReader(long batchSize, long numExamples, boolean train, double splitTrainTest)
RecordReader	getRecordReader(long batchSize, long numExamples, int[] imgDim, boolean train, double splitTrainTest, Random rng)
RecordReader	getRecordReader(long batchSize, long numExamples, int[] imgDim, long numLabels, PathLabelGenerator labelGenerator, boolean train, double splitTrainTest, Random rng)
RecordReader	getRecordReader(long batchSize, long numExamples, int[] imgDim, PathLabelGenerator labelGenerator, boolean train, double splitTrainTest, Random rng)
RecordReader	getRecordReader(long batchSize, long numExamples, long[] imgDim, boolean train, double splitTrainTest, Random rng)
RecordReader	getRecordReader(long batchSize, long numExamples, long[] imgDim, long numLabels, PathLabelGenerator labelGenerator, boolean train, double splitTrainTest, Random rng)
RecordReader	getRecordReader(long batchSize, long numExamples, long[] imgDim, PathLabelGenerator labelGenerator, boolean train, double splitTrainTest, Random rng)
RecordReader	getRecordReader(long batchSize, long numExamples, long numLabels, Random rng)
RecordReader	getRecordReader(long batchSize, long numExamples, PathLabelGenerator labelGenerator, boolean train, double splitTrainTest, Random rng)
boolean	imageFilesExist()
void	load()
void	load(long batchSize, long numExamples, long numLabels, PathLabelGenerator labelGenerator, double splitTrainTest, Random rng)

Methods inherited from class org.datavec.image.loader.BaseImageLoader

downloadAndUntar, getAllowedFormats

Methods inherited from class java.lang.Object

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

Field Detail

NUM_IMAGES

public static final int NUM_IMAGES

See Also:

Constant Field Values

NUM_LABELS

public static final int NUM_LABELS

See Also:

Constant Field Values

SUB_NUM_IMAGES

public static final int SUB_NUM_IMAGES

See Also:

Constant Field Values

SUB_NUM_LABELS

public static final int SUB_NUM_LABELS

See Also:

Constant Field Values

HEIGHT

public static final int HEIGHT

See Also:

Constant Field Values

WIDTH

public static final int WIDTH

See Also:

Constant Field Values

CHANNELS

public static final int CHANNELS

See Also:

Constant Field Values

DATA_URL

public static final String DATA_URL

See Also:

Constant Field Values

LABEL_URL

public static final String LABEL_URL

See Also:

Constant Field Values

SUBSET_URL

public static final String SUBSET_URL

See Also:

Constant Field Values

REGEX_PATTERN

protected static final String REGEX_PATTERN

See Also:

Constant Field Values

LABEL_PATTERN

public static final PathLabelGenerator LABEL_PATTERN

dataFile

public String dataFile

labelFile

public String labelFile

subsetFile

public String subsetFile

useSubset

protected boolean useSubset

inputSplit

protected InputSplit[] inputSplit

Constructor Detail

LFWLoader

public LFWLoader()

LFWLoader

public LFWLoader(boolean useSubset)

LFWLoader

public LFWLoader(int[] imgDim,
                 boolean useSubset)

LFWLoader

public LFWLoader(long[] imgDim,
                 boolean useSubset)

LFWLoader

public LFWLoader(int[] imgDim,
                 ImageTransform imgTransform,
                 boolean useSubset)

LFWLoader

public LFWLoader(long[] imgDim,
                 ImageTransform imgTransform,
                 boolean useSubset)

Method Detail

load

public void load()

load

public void load(long batchSize,
                 long numExamples,
                 long numLabels,
                 PathLabelGenerator labelGenerator,
                 double splitTrainTest,
                 Random rng)

imageFilesExist

public boolean imageFilesExist()

getRecordReader

public RecordReader getRecordReader(long numExamples)

getRecordReader

public RecordReader getRecordReader(long batchSize,
                                    long numExamples,
                                    long numLabels,
                                    Random rng)

getRecordReader

public RecordReader getRecordReader(long batchSize,
                                    long numExamples,
                                    boolean train,
                                    double splitTrainTest)

getRecordReader

public RecordReader getRecordReader(long batchSize,
                                    long numExamples,
                                    int[] imgDim,
                                    boolean train,
                                    double splitTrainTest,
                                    Random rng)

getRecordReader

public RecordReader getRecordReader(long batchSize,
                                    long numExamples,
                                    long[] imgDim,
                                    boolean train,
                                    double splitTrainTest,
                                    Random rng)

getRecordReader

public RecordReader getRecordReader(long batchSize,
                                    long numExamples,
                                    PathLabelGenerator labelGenerator,
                                    boolean train,
                                    double splitTrainTest,
                                    Random rng)

getRecordReader

public RecordReader getRecordReader(long batchSize,
                                    long numExamples,
                                    int[] imgDim,
                                    PathLabelGenerator labelGenerator,
                                    boolean train,
                                    double splitTrainTest,
                                    Random rng)

getRecordReader

public RecordReader getRecordReader(long batchSize,
                                    long numExamples,
                                    long[] imgDim,
                                    PathLabelGenerator labelGenerator,
                                    boolean train,
                                    double splitTrainTest,
                                    Random rng)

getRecordReader

public RecordReader getRecordReader(long batchSize,
                                    long numExamples,
                                    int[] imgDim,
                                    long numLabels,
                                    PathLabelGenerator labelGenerator,
                                    boolean train,
                                    double splitTrainTest,
                                    Random rng)

getRecordReader

public RecordReader getRecordReader(long batchSize,
                                    long numExamples,
                                    long[] imgDim,
                                    long numLabels,
                                    PathLabelGenerator labelGenerator,
                                    boolean train,
                                    double splitTrainTest,
                                    Random rng)

asRowVector

public INDArray asRowVector(File f)
                     throws IOException

Specified by:

asRowVector in class BaseImageLoader

Throws:

IOException

asRowVector

public INDArray asRowVector(InputStream inputStream)
                     throws IOException

Specified by:

asRowVector in class BaseImageLoader

Throws:

IOException

asMatrix

public INDArray asMatrix(File f)
                  throws IOException

Description copied from class: BaseImageLoader

As per BaseImageLoader.asMatrix(File, boolean) but NCHW/channels_first format

Specified by:

asMatrix in class BaseImageLoader

Throws:

IOException

asMatrix

public INDArray asMatrix(File f,
                         boolean nchw)
                  throws IOException

Description copied from class: BaseImageLoader

Load an image from a file to an INDArray

Specified by:

asMatrix in class BaseImageLoader

Parameters:

f - File to load the image from

nchw - If true: return image in NCHW/channels_first [1, channels, height width] format; if false, return in NHWC/channels_last [1, height, width, channels] format

Returns:

Image file as as INDArray

Throws:

IOException

asMatrix

public INDArray asMatrix(InputStream inputStream)
                  throws IOException

Specified by:

asMatrix in class BaseImageLoader

Throws:

IOException

asMatrix

public INDArray asMatrix(InputStream inputStream,
                         boolean nchw)
                  throws IOException

Description copied from class: BaseImageLoader

Load an image file from an input stream to an INDArray

Specified by:

asMatrix in class BaseImageLoader

Parameters:

inputStream - Input stream to load the image from

nchw - If true: return image in NCHW/channels_first [1, channels, height width] format; if false, return in NHWC/channels_last [1, height, width, channels] format

Returns:

Image file stream as as INDArray

Throws:

IOException

asImageMatrix

public Image asImageMatrix(File f)
                    throws IOException

Description copied from class: BaseImageLoader

As per BaseImageLoader.asMatrix(File) but as an Image

Specified by:

asImageMatrix in class BaseImageLoader

Throws:

IOException

asImageMatrix

public Image asImageMatrix(File f,
                           boolean nchw)
                    throws IOException

Description copied from class: BaseImageLoader

As per BaseImageLoader.asMatrix(File, boolean) but as an Image

Specified by:

asImageMatrix in class BaseImageLoader

Throws:

IOException

asImageMatrix

public Image asImageMatrix(InputStream inputStream)
                    throws IOException

Description copied from class: BaseImageLoader

As per BaseImageLoader.asMatrix(InputStream) but as an Image

Specified by:

asImageMatrix in class BaseImageLoader

Throws:

IOException

asImageMatrix

public Image asImageMatrix(InputStream inputStream,
                           boolean nchw)
                    throws IOException

Description copied from class: BaseImageLoader

As per BaseImageLoader.asMatrix(InputStream, boolean) but as an Image

Specified by:

asImageMatrix in class BaseImageLoader

Throws:

IOException