ai.djl.modality.cv.transform.OneHot Maven / Gradle / Ivy
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* Copyright 2022 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.ndarray.NDArray;
import ai.djl.translate.Transform;
/** A {@link Transform} that converts the labels {@link NDArray} to one-hot labels. */
public class OneHot implements Transform {
private int numClass;
/**
* Creates a {@code OneHot} {@link Transform} that converts the sparse label to one-hot label.
*
* @param numClass number of classes
*/
public OneHot(int numClass) {
this.numClass = numClass;
}
/** {@inheritDoc} */
@Override
public NDArray transform(NDArray array) {
return array.oneHot(numClass);
}
}