72 lines
2.5 KiB
Scala
72 lines
2.5 KiB
Scala
/*******************************************************************************
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* Copyright (c) 2015-2018 Skymind, Inc.
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*
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* This program and the accompanying materials are made available under the
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* terms of the Apache License, Version 2.0 which is available at
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* https://www.apache.org/licenses/LICENSE-2.0.
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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* SPDX-License-Identifier: Apache-2.0
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******************************************************************************/
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package org.deeplearning4j.scalnet.layers.convolutional
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import org.deeplearning4j.nn.conf.layers.ZeroPadding3DLayer
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import org.deeplearning4j.scalnet.layers.core.{ Layer, Node }
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/**
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* 3D zero padding layer
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*
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* @author Max Pumperla
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*/
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class ZeroPadding3D(padLeftD: Int,
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padRightD: Int,
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padLeftH: Int,
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padRightH: Int,
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padLeftW: Int,
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padRightW: Int,
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nIn: List[Int],
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override val name: String = "")
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extends Node
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with Layer {
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override def inputShape: List[Int] = nIn
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override def outputShape: List[Int] = {
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val nOutChannels: Int =
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if (inputShape.nonEmpty) inputShape.last
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else 0
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if (inputShape.lengthCompare(4) == 0) {
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List[Int](inputShape.head + padLeftD + padRightD,
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inputShape(1) + padLeftH + padRightH,
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inputShape(2) + padLeftW + padRightW,
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nOutChannels)
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} else if (nOutChannels > 0) List(nOutChannels)
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else List()
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}
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override def reshapeInput(nIn: List[Int]): ZeroPadding3D =
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new ZeroPadding3D(padLeftD, padRightD, padLeftH, padRightH, padLeftW, padRightW, nIn, name)
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override def compile: org.deeplearning4j.nn.conf.layers.Layer =
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new ZeroPadding3DLayer.Builder(padLeftD, padRightD, padLeftH, padRightH, padLeftW, padRightW)
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.name(name)
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.build()
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}
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object ZeroPadding3D {
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def apply(padLeftD: Int,
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padRightD: Int,
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padLeftH: Int,
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padRightH: Int,
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padLeftW: Int,
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padRightW: Int,
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nIn: List[Int],
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name: String): ZeroPadding3D =
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new ZeroPadding3D(padLeftD, padRightD, padLeftH, padRightH, padLeftW, padRightW, nIn, name)
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}
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