org.datavec.image.loader

Class Java2DNativeImageLoader

java.lang.Object

org.datavec.image.loader.BaseImageLoader

org.datavec.image.loader.NativeImageLoader

org.datavec.image.loader.Java2DNativeImageLoader

All Implemented Interfaces:

Serializable

public class Java2DNativeImageLoader
extends NativeImageLoader

Segregates functionality specific to Java 2D that is not available on Android.

Author:

saudet

See Also:

Serialized Form

Nested Class Summary

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

BaseImageLoader.MultiPageMode

Field Summary

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

ALLOWED_FORMATS, converter

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

BASE_DIR, centerCropIfNeeded, channels, height, imageTransform, log, multiPageMode, rng, width

Constructor Summary

Constructors

Modifier	Constructor and Description
	Java2DNativeImageLoader()
	Java2DNativeImageLoader(int height, int width)
	Java2DNativeImageLoader(int height, int width, int channels)
	Java2DNativeImageLoader(int height, int width, int channels, boolean centerCropIfNeeded)
	Java2DNativeImageLoader(int height, int width, int channels, ImageTransform imageTransform)
protected	Java2DNativeImageLoader(NativeImageLoader other)

Method Summary

Modifier and Type	Method and Description
BufferedImage	asBufferedImage(INDArray array) Returns asBufferedImage(array, Frame.DEPTH_UBYTE).
BufferedImage	asBufferedImage(INDArray array, int dataType) Converts an INDArray to a BufferedImage.
INDArray	asMatrix(BufferedImage image) Returns asMatrix(image, false).
INDArray	asMatrix(BufferedImage image, boolean flipChannels) Loads a INDArray from a BufferedImage.
INDArray	asMatrix(Object image) Calls AndroidNativeImageLoader.asMatrix(android.graphics.Bitmap) or asMatrix(java.awt.image.BufferedImage).
INDArray	asRowVector(BufferedImage image) Returns asMatrix(image, false).ravel().
INDArray	asRowVector(BufferedImage image, boolean flipChannels) Returns asMatrix(image, flipChannels).ravel().
INDArray	asRowVector(Object image) Returns asMatrix(image).ravel().

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

asFrame, asFrame, asImageMatrix, asImageMatrix, asImageMatrix, asMat, asMat, asMatrix, asMatrix, asMatrix, asMatrix, asMatrix, asMatrix, asMatrix, asMatrixView, asMatrixView, asMatrixView, asMatrixView, asMatrixView, asRowVector, asRowVector, asRowVector, asRowVector, asRowVector, asRowVector, asWritable, asWritable, centerCropIfNeeded, fillNDArray, getAllowedFormats, scalingIfNeed, scalingIfNeed, transformImage, transformImage

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

downloadAndUntar

Methods inherited from class java.lang.Object

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

Constructor Detail

Java2DNativeImageLoader

public Java2DNativeImageLoader()

Java2DNativeImageLoader

public Java2DNativeImageLoader(int height,
                               int width)

Java2DNativeImageLoader

public Java2DNativeImageLoader(int height,
                               int width,
                               int channels)

Java2DNativeImageLoader

public Java2DNativeImageLoader(int height,
                               int width,
                               int channels,
                               boolean centerCropIfNeeded)

Java2DNativeImageLoader

public Java2DNativeImageLoader(int height,
                               int width,
                               int channels,
                               ImageTransform imageTransform)

Java2DNativeImageLoader

protected Java2DNativeImageLoader(NativeImageLoader other)

Method Detail

asRowVector

public INDArray asRowVector(BufferedImage image)
                     throws IOException

Returns asMatrix(image, false).ravel().

Throws:

IOException

asMatrix

public INDArray asMatrix(BufferedImage image)
                  throws IOException

Returns asMatrix(image, false).

Throws:

IOException

asRowVector

public INDArray asRowVector(BufferedImage image,
                            boolean flipChannels)
                     throws IOException

Returns asMatrix(image, flipChannels).ravel().

Throws:

IOException

asMatrix

public INDArray asMatrix(BufferedImage image,
                         boolean flipChannels)
                  throws IOException

Loads a INDArray from a BufferedImage.

Parameters:

image - as a BufferedImage

flipChannels - to have a format like TYPE_INT_RGB (ARGB) output as BGRA, etc

Returns:

the loaded matrix

Throws:

IOException

asRowVector

public INDArray asRowVector(Object image)
                     throws IOException

Description copied from class: NativeImageLoader

Returns asMatrix(image).ravel().

Overrides:

asRowVector in class NativeImageLoader

Throws:

IOException

See Also:

NativeImageLoader.asMatrix(Object)

asMatrix

public INDArray asMatrix(Object image)
                  throws IOException

Description copied from class: NativeImageLoader

Calls AndroidNativeImageLoader.asMatrix(android.graphics.Bitmap) or asMatrix(java.awt.image.BufferedImage).

Overrides:

asMatrix in class NativeImageLoader

Parameters:

image - as a Bitmap or BufferedImage

Returns:

the matrix or null for unsupported object classes

Throws:

IOException

asBufferedImage

public BufferedImage asBufferedImage(INDArray array)

Returns asBufferedImage(array, Frame.DEPTH_UBYTE).

asBufferedImage

public BufferedImage asBufferedImage(INDArray array,
                                     int dataType)

Converts an INDArray to a BufferedImage. Only intended for images with rank 3.

Parameters:

array - to convert

dataType - from JavaCV (DEPTH_FLOAT, DEPTH_UBYTE, etc), or -1 to use same type as the INDArray

Returns:

data copied to a Frame