com.intel.analytics.bigdl.utils.tf.loaders.LRN.scala Maven / Gradle / Ivy
/*
* Copyright 2016 The BigDL Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://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.
*/
package com.intel.analytics.bigdl.utils.tf.loaders
import java.nio.ByteOrder
import com.intel.analytics.bigdl.Module
import com.intel.analytics.bigdl.nn.SpatialCrossMapLRN
import com.intel.analytics.bigdl.nn.abstractnn.DataFormat
import com.intel.analytics.bigdl.tensor.TensorNumericMath.TensorNumeric
import com.intel.analytics.bigdl.utils.tf.Context
import org.tensorflow.framework.NodeDef
import scala.reflect.ClassTag
class LRN extends TensorflowOpsLoader {
import Utils._
override def build[T: ClassTag](nodeDef: NodeDef, byteOrder: ByteOrder, context: Context[T])
(implicit ev: TensorNumeric[T]): Module[T] = {
val size = getInt(nodeDef.getAttrMap, "depth_radius")
val k = getFloat(nodeDef.getAttrMap, "bias")
val alpha = getFloat(nodeDef.getAttrMap, "alpha")
val beta = getFloat(nodeDef.getAttrMap, "beta")
SpatialCrossMapLRN[T](
size = size * 2 + 1,
k = k,
alpha = alpha * (size * 2 + 1),
beta = beta,
format = DataFormat.NHWC
)
}
}