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125 lines
4.2 KiB
125 lines
4.2 KiB
/*M/////////////////////////////////////////////////////////////////////////////////////// |
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// |
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// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING. |
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// |
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// By downloading, copying, installing or using the software you agree to this license. |
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// If you do not agree to this license, do not download, install, |
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// copy or use the software. |
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// |
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// |
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// License Agreement |
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// For Open Source Computer Vision Library |
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// |
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// Copyright (C) 2013, OpenCV Foundation, all rights reserved. |
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// Third party copyrights are property of their respective owners. |
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// |
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// Redistribution and use in source and binary forms, with or without modification, |
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// are permitted provided that the following conditions are met: |
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// |
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// * Redistribution's of source code must retain the above copyright notice, |
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// this list of conditions and the following disclaimer. |
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// |
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// * Redistribution's in binary form must reproduce the above copyright notice, |
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// this list of conditions and the following disclaimer in the documentation |
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// and/or other materials provided with the distribution. |
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// |
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// * The name of the copyright holders may not be used to endorse or promote products |
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// derived from this software without specific prior written permission. |
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// |
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// This software is provided by the copyright holders and contributors "as is" and |
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// any express or implied warranties, including, but not limited to, the implied |
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// warranties of merchantability and fitness for a particular purpose are disclaimed. |
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// In no event shall the Intel Corporation or contributors be liable for any direct, |
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// indirect, incidental, special, exemplary, or consequential damages |
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// (including, but not limited to, procurement of substitute goods or services; |
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// loss of use, data, or profits; or business interruption) however caused |
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// and on any theory of liability, whether in contract, strict liability, |
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// or tort (including negligence or otherwise) arising in any way out of |
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// the use of this software, even if advised of the possibility of such damage. |
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// |
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//M*/ |
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#include "../precomp.hpp" |
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#include "layers_common.hpp" |
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#include <float.h> |
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#include <algorithm> |
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#include <opencv2/dnn/shape_utils.hpp> |
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namespace cv |
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{ |
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namespace dnn |
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{ |
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class FlattenLayerImpl : public FlattenLayer |
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{ |
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public: |
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FlattenLayerImpl(const LayerParams ¶ms) |
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{ |
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_startAxis = params.get<int>("axis", 1); |
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_endAxis = params.get<int>("end_axis", -1); |
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setParamsFrom(params); |
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} |
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bool getMemoryShapes(const std::vector<MatShape> &inputs, |
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const int requiredOutputs, |
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std::vector<MatShape> &outputs, |
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std::vector<MatShape> &internals) const |
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{ |
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CV_Assert(inputs.size() > 0); |
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for (size_t i = 1; i < inputs.size(); i++) |
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{ |
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CV_Assert(inputs[i] == inputs[0]); |
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} |
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int numAxes = inputs[0].size(); |
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int startAxis = clamp(_startAxis, numAxes); |
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int endAxis = clamp(_endAxis, numAxes); |
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for (size_t i = 1; i < inputs.size(); i++) |
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{ |
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CV_Assert(inputs[i] == inputs[0]); |
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} |
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CV_Assert(startAxis >= 0); |
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CV_Assert(endAxis >= startAxis && endAxis < (int)numAxes); |
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size_t flattenedDimensionSize = total(inputs[0], startAxis, endAxis); |
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MatShape outputShapeVec; |
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for (int i = 0; i < startAxis; i++) |
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{ |
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outputShapeVec.push_back(inputs[0][i]); |
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} |
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outputShapeVec.push_back(flattenedDimensionSize); |
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for (size_t i = endAxis + 1; i < numAxes; i++) |
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{ |
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outputShapeVec.push_back(inputs[0][i]); |
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} |
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CV_Assert(outputShapeVec.size() <= 4); |
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outputs.resize(inputs.size(), outputShapeVec); |
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return true; |
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} |
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void forward(std::vector<Mat*> &inputs, std::vector<Mat> &outputs, std::vector<Mat> &internals) |
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{ |
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for (size_t i = 0; i < inputs.size(); i++) |
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{ |
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MatShape outShape = shape(outputs[i]); |
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outputs[i] = inputs[i]->reshape(1, (int)outShape.size(), &outShape[0]); |
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} |
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} |
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int _startAxis; |
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int _endAxis; |
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}; |
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Ptr<FlattenLayer> FlattenLayer::create(const LayerParams& params) |
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{ |
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return Ptr<FlattenLayer>(new FlattenLayerImpl(params)); |
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} |
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} |
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}
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