nd4j/nd4j-backends/nd4j-api-parent/nd4j-api/src/main/java/org/nd4j/linalg/api/ops/impl/image/ResizeBilinear.java
/*
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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.
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* * 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.
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* * SPDX-License-Identifier: Apache-2.0
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package org.nd4j.linalg.api.ops.impl.image;
import lombok.NoArgsConstructor;
import lombok.NonNull;
import lombok.val;
import org.nd4j.autodiff.samediff.SDVariable;
import org.nd4j.autodiff.samediff.SameDiff;
import org.nd4j.common.base.Preconditions;
import org.nd4j.imports.graphmapper.tf.TFGraphMapper;
import org.nd4j.linalg.api.buffer.DataType;
import org.nd4j.linalg.api.ndarray.INDArray;
import org.nd4j.linalg.api.ops.DynamicCustomOp;
import org.nd4j.linalg.factory.Nd4j;
import org.tensorflow.framework.AttrValue;
import org.tensorflow.framework.GraphDef;
import org.tensorflow.framework.NodeDef;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
@NoArgsConstructor
public class ResizeBilinear extends DynamicCustomOp {
protected boolean alignCorners = false;
protected boolean halfPixelCenters = false;
protected Integer height = null;
protected Integer width = null;
public ResizeBilinear(@NonNull SameDiff sd, @NonNull SDVariable input, int height, int width,
boolean alignCorners, boolean halfPixelCenters){
super(sd, input);
this.alignCorners = alignCorners;
this.height = height;
this.width = width;
this.halfPixelCenters = halfPixelCenters;
addArgs();
}
public ResizeBilinear(@NonNull INDArray x, INDArray z, int height, int width,
boolean alignCorners, boolean halfPixelCenters) {
super(new INDArray[]{x}, new INDArray[]{z});
this.alignCorners = alignCorners;
this.halfPixelCenters = halfPixelCenters;
this.height = height;
this.width = width;
addArgs();
}
public ResizeBilinear(INDArray input, int height, int width, boolean alignCorners, boolean halfPixelCenters) {
this(input,null,height,width,alignCorners,halfPixelCenters);
}
@Override
public String opName() {
return "resize_bilinear";
}
@Override
public String tensorflowName() {
return "ResizeBilinear";
}
@Override
public void initFromTensorFlow(NodeDef nodeDef, SameDiff initWith, Map<String, AttrValue> attributesForNode, GraphDef graph) {
TFGraphMapper.initFunctionFromProperties(nodeDef.getOp(), this, attributesForNode, nodeDef, graph);
val attrC = attributesForNode.get("align_corners");
val attrH = attributesForNode.get("half_pixel_centers");
this.alignCorners = attrC != null ? attrC.getB() : false;
this.halfPixelCenters = attrH != null ? attrH.getB() : false;
addArgs();
}
protected void addArgs() {
// to be implemented
iArguments.clear();
if(height != null && width != null){
iArguments.add(Long.valueOf(height));
iArguments.add(Long.valueOf(width));
}
addBArgument(alignCorners, halfPixelCenters);
}
@Override
public Map<String, Object> propertiesForFunction() {
Map<String,Object> ret = new LinkedHashMap<>();
ret.put("alignCorners", alignCorners);
ret.put("height", height);
ret.put("width", width);
return ret;
}
@Override
public List<SDVariable> doDiff(List<SDVariable> f1) {
throw new UnsupportedOperationException();
}
@Override
public List<DataType> calculateOutputDataTypes(List<DataType> inputDataTypes){
Preconditions.checkState(inputDataTypes != null && (inputDataTypes.size() == 1 || inputDataTypes.size() == 2),
"Expected 1 or 2 input datatypes for %s, got %s", getClass(), inputDataTypes);
if(inputDataTypes.get(0).isFPType())
return Collections.singletonList(inputDataTypes.get(0));
return Collections.singletonList(Nd4j.defaultFloatingPointType());
}
}