Package org.datavec.image.transform

Class ScaleImageTransform

java.lang.Object

org.datavec.image.transform.BaseImageTransform<org.bytedeco.opencv.opencv_core.Mat>

org.datavec.image.transform.ScaleImageTransform

All Implemented Interfaces:

Operation<ImageWritable,ImageWritable>, ImageTransform

public class ScaleImageTransform
extends BaseImageTransform<org.bytedeco.opencv.opencv_core.Mat>

Field Summary

Fields inherited from class org.datavec.image.transform.BaseImageTransform

converter, currentImage, random

Constructor Summary

Constructors

Constructor	Description
ScaleImageTransform(float delta)	Calls this(null, delta, delta).
ScaleImageTransform(float dx, float dy)	Calls this(null, dx, dy).
ScaleImageTransform(Random random, float delta)	Calls this(random, delta, delta).
ScaleImageTransform(Random random, float dx, float dy)	Constructs an instance of the ImageTransform.

Method Summary

Modifier and Type	Method	Description
protected ImageWritable	doTransform(ImageWritable image, Random random)
float[]	query(float... coordinates)	Transforms the given coordinates using the parameters that were used to transform the last image.

Methods inherited from class org.datavec.image.transform.BaseImageTransform

getCurrentImage, transform, transform

Methods inherited from class java.lang.Object

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

Constructor Detail

ScaleImageTransform

public ScaleImageTransform(float delta)

Calls this(null, delta, delta).

ScaleImageTransform

public ScaleImageTransform(Random random,
                           float delta)

Calls this(random, delta, delta).

ScaleImageTransform

public ScaleImageTransform(float dx,
                           float dy)

Calls this(null, dx, dy).

ScaleImageTransform

public ScaleImageTransform(Random random,
                           float dx,
                           float dy)

Constructs an instance of the ImageTransform.

Parameters:

random - object to use (or null for deterministic)

dx - maximum scaling in width of the image (pixels)

dy - maximum scaling in height of the image (pixels)

Method Detail

doTransform

protected ImageWritable doTransform(ImageWritable image,
                                    Random random)

Specified by:

doTransform in class BaseImageTransform<org.bytedeco.opencv.opencv_core.Mat>

query

public float[] query(float... coordinates)

Description copied from interface: ImageTransform

Transforms the given coordinates using the parameters that were used to transform the last image.

Specified by:

query in interface ImageTransform

Overrides:

query in class BaseImageTransform<org.bytedeco.opencv.opencv_core.Mat>

Parameters:

coordinates - to transforms (x1, y1, x2, y2, ...)

Returns:

transformed coordinates