org.datavec.image.transform

Class ResizeImageTransform

java.lang.Object

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

org.datavec.image.transform.ResizeImageTransform

All Implemented Interfaces:

ImageTransform

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

ResizeImageTransform is suited to force the same image size for whole pipeline and it doesn't use any random factor for width and height. If you need to use random scales to scale or crop the images, these links might be helpful ScaleImageTransform or ScaleImageTransform

Author:

raver119@gmail.com

Field Summary

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

converter, currentImage, random

Constructor Summary

Constructors

Constructor and Description
ResizeImageTransform(int newWidth, int newHeight) Returns new ResizeImageTransform object
ResizeImageTransform(Random random, int newWidth, int newHeight) Returns new ResizeImageTransform object

Method Summary

Modifier and Type	Method and Description
protected ImageWritable	doTransform(ImageWritable image, Random random) Takes an image and returns a transformed image.
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

ResizeImageTransform

public ResizeImageTransform(int newWidth,
                            int newHeight)

Returns new ResizeImageTransform object

Parameters:

newWidth - new Width for the outcome images

newHeight - new Height for outcome images

ResizeImageTransform

public ResizeImageTransform(Random random,
                            int newWidth,
                            int newHeight)

Returns new ResizeImageTransform object

Parameters:

random - Random

newWidth - new Width for the outcome images

newHeight - new Height for outcome images

Method Detail

doTransform

protected ImageWritable doTransform(ImageWritable image,
                                    Random random)

Takes an image and returns a transformed image. Uses the random object in the case of random transformations.

Specified by:

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

Parameters:

image - to transform, null == end of stream

random - object to use (or null for deterministic)

Returns:

transformed image

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