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77 lines
2.2 KiB
C++
77 lines
2.2 KiB
C++
// This file is part of OpenCV project.
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// It is subject to the license terms in the LICENSE file found in the top-level directory
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// of this distribution and at http://opencv.org/license.html.
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//
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// Copyright (C) 2017, Intel Corporation, all rights reserved.
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// Third party copyrights are property of their respective owners.
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#include "../precomp.hpp"
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#ifdef HAVE_PROTOBUF
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#include <fstream>
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#include "caffe_io.hpp"
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#endif
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namespace cv { namespace dnn {
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CV__DNN_EXPERIMENTAL_NS_BEGIN
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#ifdef HAVE_PROTOBUF
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void shrinkCaffeModel(const String& src, const String& dst, const std::vector<String>& layersTypes)
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{
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CV_TRACE_FUNCTION();
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std::vector<String> types(layersTypes);
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if (types.empty())
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{
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types.push_back("Convolution");
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types.push_back("InnerProduct");
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}
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caffe::NetParameter net;
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ReadNetParamsFromBinaryFileOrDie(src.c_str(), &net);
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for (int i = 0; i < net.layer_size(); ++i)
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{
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caffe::LayerParameter* lp = net.mutable_layer(i);
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if (std::find(types.begin(), types.end(), lp->type()) == types.end())
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{
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continue;
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}
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for (int j = 0; j < lp->blobs_size(); ++j)
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{
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caffe::BlobProto* blob = lp->mutable_blobs(j);
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CV_Assert(blob->data_size() != 0); // float32 array.
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Mat floats(1, blob->data_size(), CV_32FC1, (void*)blob->data().data());
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Mat halfs(1, blob->data_size(), CV_16SC1);
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convertFp16(floats, halfs); // Convert to float16.
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blob->clear_data(); // Clear float32 data.
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// Set float16 data.
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blob->set_raw_data(halfs.data, halfs.total() * halfs.elemSize());
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blob->set_raw_data_type(caffe::FLOAT16);
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}
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}
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size_t msgSize = net.ByteSizeLong();
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std::vector<uint8_t> output(msgSize);
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net.SerializeWithCachedSizesToArray(&output[0]);
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std::ofstream ofs(dst.c_str(), std::ios::binary);
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ofs.write((const char*)&output[0], msgSize);
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ofs.close();
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}
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#else
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void shrinkCaffeModel(const String& src, const String& dst, const std::vector<String>& types)
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{
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CV_Error(cv::Error::StsNotImplemented, "libprotobuf required to import data from Caffe models");
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}
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#endif // HAVE_PROTOBUF
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CV__DNN_EXPERIMENTAL_NS_END
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}} // namespace
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