org.nd4j.linalg.api.ops.impl.layers.convolution.Upsampling3d Maven / Gradle / Ivy
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* ******************************************************************************
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* *
* * 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.
* *
* * See the NOTICE file distributed with this work for additional
* * information regarding copyright ownership.
* * 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.api.ops.impl.layers.convolution;
import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.nd4j.autodiff.samediff.SDVariable;
import org.nd4j.autodiff.samediff.SameDiff;
import org.nd4j.common.base.Preconditions;
import org.nd4j.linalg.api.buffer.DataType;
import org.nd4j.linalg.api.ndarray.INDArray;
import org.nd4j.linalg.api.ops.DynamicCustomOp;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Map;
/**
* Upsampling3d operation
*/
@Slf4j
@Getter
@NoArgsConstructor
public class Upsampling3d extends DynamicCustomOp {
protected boolean ncdhw;
protected int scaleH;
protected int scaleW;
protected int scaleD;
public Upsampling3d(SameDiff sameDiff, SDVariable input, boolean ncdhw, int scaleD, int scaleH, int scaleW) {
super("upsampling3d",sameDiff, new SDVariable[]{input});
this.ncdhw = ncdhw;
this.scaleD = scaleD;
this.scaleH = scaleH;
this.scaleW = scaleW;
addIArgument(scaleD);
addIArgument(scaleH);
addIArgument(scaleW);
addIArgument(scaleD);
addIArgument(ncdhw ? 1 : 0);
}
public Upsampling3d(INDArray input, boolean ncdhw, int scaleH, int scaleW, int scaleD) {
super(new INDArray[]{input}, null);
this.ncdhw = ncdhw;
this.scaleD = scaleD;
this.scaleH = scaleH;
this.scaleW = scaleW;
addIArgument(scaleD);
addIArgument(scaleH);
addIArgument(scaleW);
addIArgument(scaleD);
addIArgument(ncdhw ? 0 : 1);
}
@Override
public String opName() {
return "upsampling3d";
}
@Override
public void configureFromArguments() {
super.configureFromArguments();
if(!iArguments.isEmpty() && iArguments.size() >= 4) {
this.scaleD = iArguments.get(0).intValue();
this.scaleH = iArguments.get(1).intValue();
this.scaleW = iArguments.get(2).intValue();
//note that scaleD is used twice so we skip an argument
this.ncdhw = iArguments.get(4) > 0;
}
}
@Override
public void setPropertiesForFunction(Map properties) {
super.setPropertiesForFunction(properties);
}
@Override
public List doDiff(List f1) {
return Arrays.asList(new Upsampling3dBp(sameDiff, arg(0), f1.get(0), this.ncdhw).outputVariables());
}
@Override
public List calculateOutputDataTypes(List inputDataTypes){
Preconditions.checkState(inputDataTypes != null && inputDataTypes.size() == 1, "Expected 1 input data type for %s, got %s", getClass(), inputDataTypes);
return Collections.singletonList(inputDataTypes.get(0));
}
}