Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/tesseract/src/lstm/maxpool.h @ 17:dd9cdb856310

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Remove PKG-INFO from the because it is regenerated automatically for the sdist
author Franz Glasner <fzglas.hg@dom66.de>
date Thu, 18 Sep 2025 17:40:40 +0200
parents b50eed0cc0ef
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 ///////////////////////////////////////////////////////////////////////
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2 // File: maxpool.h
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3 // Description: Standard Max-Pooling layer.
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4 // Author: Ray Smith
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5 //
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6 // (C) Copyright 2014, Google Inc.
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7 // Licensed under the Apache License, Version 2.0 (the "License");
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8 // you may not use this file except in compliance with the License.
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9 // You may obtain a copy of the License at
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10 // http://www.apache.org/licenses/LICENSE-2.0
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11 // Unless required by applicable law or agreed to in writing, software
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12 // distributed under the License is distributed on an "AS IS" BASIS,
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13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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14 // See the License for the specific language governing permissions and
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15 // limitations under the License.
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16 ///////////////////////////////////////////////////////////////////////
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18 #ifndef TESSERACT_LSTM_MAXPOOL_H_
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19 #define TESSERACT_LSTM_MAXPOOL_H_
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21 #include "reconfig.h"
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23 namespace tesseract {
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25 // Maxpooling reduction. Independently for each input, selects the location
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26 // in the rectangle that contains the max value.
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27 // Backprop propagates only to the position that was the max.
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28 class Maxpool : public Reconfig {
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29 public:
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30 TESS_API
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31 Maxpool(const std::string &name, int ni, int x_scale, int y_scale);
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32 ~Maxpool() override = default;
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34 // Accessors.
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35 std::string spec() const override {
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36 return "Mp" + std::to_string(y_scale_) + "," + std::to_string(x_scale_);
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37 }
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39 // Reads from the given file. Returns false in case of error.
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40 bool DeSerialize(TFile *fp) override;
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42 // Runs forward propagation of activations on the input line.
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43 // See Network for a detailed discussion of the arguments.
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44 void Forward(bool debug, const NetworkIO &input, const TransposedArray *input_transpose,
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45 NetworkScratch *scratch, NetworkIO *output) override;
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47 // Runs backward propagation of errors on the deltas line.
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48 // See Network for a detailed discussion of the arguments.
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49 bool Backward(bool debug, const NetworkIO &fwd_deltas, NetworkScratch *scratch,
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50 NetworkIO *back_deltas) override;
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52 private:
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53 // Memory of which input was the max.
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54 GENERIC_2D_ARRAY<int> maxes_;
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55 };
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57 } // namespace tesseract.
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59 #endif // TESSERACT_LSTM_MAXPOOL_H_