org.datavec.image.loader

Class AndroidNativeImageLoader

java.lang.Object

org.datavec.image.loader.BaseImageLoader

org.datavec.image.loader.NativeImageLoader

org.datavec.image.loader.AndroidNativeImageLoader

All Implemented Interfaces:

Serializable

public class AndroidNativeImageLoader
extends NativeImageLoader

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

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
	AndroidNativeImageLoader()
	AndroidNativeImageLoader(int height, int width)
	AndroidNativeImageLoader(int height, int width, int channels)
	AndroidNativeImageLoader(int height, int width, int channels, boolean centerCropIfNeeded)
	AndroidNativeImageLoader(int height, int width, int channels, ImageTransform imageTransform)
protected	AndroidNativeImageLoader(NativeImageLoader other)

Method Summary

Modifier and Type	Method and Description
android.graphics.Bitmap	asBitmap(INDArray array) Returns asBitmap(array, Frame.DEPTH_UBYTE).
android.graphics.Bitmap	asBitmap(INDArray array, int dataType) Converts an INDArray to a Bitmap.
INDArray	asMatrix(android.graphics.Bitmap image)
INDArray	asMatrix(Object image) Calls asMatrix(android.graphics.Bitmap) or Java2DNativeImageLoader.asMatrix(java.awt.image.BufferedImage).
INDArray	asRowVector(android.graphics.Bitmap image)
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

AndroidNativeImageLoader

public AndroidNativeImageLoader()

AndroidNativeImageLoader

public AndroidNativeImageLoader(int height,
                                int width)

AndroidNativeImageLoader

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

AndroidNativeImageLoader

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

AndroidNativeImageLoader

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

AndroidNativeImageLoader

protected AndroidNativeImageLoader(NativeImageLoader other)

Method Detail

asRowVector

public INDArray asRowVector(android.graphics.Bitmap image)
                     throws IOException

Throws:

IOException

asMatrix

public INDArray asMatrix(android.graphics.Bitmap image)
                  throws IOException

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 asMatrix(android.graphics.Bitmap) or Java2DNativeImageLoader.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

asBitmap

public android.graphics.Bitmap asBitmap(INDArray array)

Returns asBitmap(array, Frame.DEPTH_UBYTE).

asBitmap

public android.graphics.Bitmap asBitmap(INDArray array,
                                        int dataType)

Converts an INDArray to a Bitmap. 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