org.nd4j.linalg.dataset.api.preprocessor.serializer.ImagePreProcessingSerializerStrategy Maven / Gradle / Ivy
/*******************************************************************************
* Copyright (c) 2015-2018 Skymind, Inc.
*
* This program and the accompanying materials are made available under the
* terms of the Apache License, Version 2.0 which is available at
* https://www.apache.org/licenses/LICENSE-2.0.
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License 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.
*
* SPDX-License-Identifier: Apache-2.0
******************************************************************************/
package org.nd4j.linalg.dataset.api.preprocessor.serializer;
import org.nd4j.linalg.dataset.api.preprocessor.ImagePreProcessingScaler;
import java.io.*;
/**
* {@link NormalizerSerializerStrategy}
* for {@link ImagePreProcessingScaler}
*
* Saves the min range, max range, and max pixel value as
* doubles
*
*
* @author Adam Gibson
*/
public class ImagePreProcessingSerializerStrategy implements NormalizerSerializerStrategy {
@Override
public void write(ImagePreProcessingScaler normalizer, OutputStream stream) throws IOException {
try(DataOutputStream dataOutputStream = new DataOutputStream(stream)) {
dataOutputStream.writeDouble(normalizer.getMinRange());
dataOutputStream.writeDouble(normalizer.getMaxRange());
dataOutputStream.writeDouble(normalizer.getMaxPixelVal());
dataOutputStream.flush();
}
}
@Override
public ImagePreProcessingScaler restore(InputStream stream) throws IOException {
DataInputStream dataOutputStream = new DataInputStream(stream);
double minRange = dataOutputStream.readDouble();
double maxRange = dataOutputStream.readDouble();
double maxPixelVal = dataOutputStream.readDouble();
ImagePreProcessingScaler ret = new ImagePreProcessingScaler(minRange,maxRange);
ret.setMaxPixelVal(maxPixelVal);
return ret;
}
@Override
public NormalizerType getSupportedType() {
return NormalizerType.IMAGE_MIN_MAX;
}
}