ai.djl.modality.cv.transform.RandomBrightness Maven / Gradle / Ivy
/*
* Copyright 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License"). You may not use this file except in compliance
* with the License. A copy of the License is located at
*
* http://aws.amazon.com/apache2.0/
*
* or in the "license" file accompanying this file. This file is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES
* OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions
* and limitations under the License.
*/
package ai.djl.modality.cv.transform;
import ai.djl.modality.cv.util.NDImageUtils;
import ai.djl.ndarray.NDArray;
import ai.djl.translate.Transform;
/**
* A {@link Transform} that randomly jitters image brightness with a factor chosen from [max(0, 1 -
* brightness), 1 + brightness].
*/
public class RandomBrightness implements Transform {
private float brightness;
/**
* Creates a {@code RandomBrightness} {@link Transform}.
*
* @param brightness the brightness factor from 0 to 1
*/
public RandomBrightness(float brightness) {
this.brightness = brightness;
}
/** {@inheritDoc} */
@Override
public NDArray transform(NDArray array) {
return NDImageUtils.randomBrightness(array, brightness);
}
}