52 lines
1.4 KiB
52 lines
1.4 KiB
/* Copyright (c) 2016 Baidu, Inc. All Rights Reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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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,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License. */
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#pragma once
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#include "Layer.h"
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#include "paddle/math/Matrix.h"
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namespace paddle {
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/**
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* A layer for rotating a multi-channel feature map (M x N x C) in the spatial
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* domain
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* The rotation is 90 degrees in clock-wise for each channel
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* \f[
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* y(j,i,:) = x(M-i-1,j,:)
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* \f]
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* where \f$x\f$ is (M x N x C) input, and \f$y\f$ is (N x M x C) output.
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*
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* The config file api is rotate_layer
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*
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*/
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class RotateLayer : public Layer {
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public:
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explicit RotateLayer(const LayerConfig& config) : Layer(config) {}
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bool init(const LayerMap& layerMap, const ParameterMap& parameterMap);
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void forward(PassType passType);
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void backward(const UpdateCallback& callback = nullptr);
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private:
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int batchSize_;
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int size_;
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int height_;
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int width_;
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int channels_;
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};
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} // namespace paddle
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