Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/tesseract/src/wordrec/language_model.h @ 2:b50eed0cc0ef upstream

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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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children
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1 ///////////////////////////////////////////////////////////////////////
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2 // File: language_model.h
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3 // Description: Functions that utilize the knowledge about the properties,
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4 // structure and statistics of the language to help segmentation
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5 // search.
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6 // Author: Daria Antonova
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7 //
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8 // (C) Copyright 2009, Google Inc.
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9 // Licensed under the Apache License, Version 2.0 (the "License");
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10 // you may not use this file except in compliance with the License.
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11 // You may obtain a copy of the License at
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12 // http://www.apache.org/licenses/LICENSE-2.0
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13 // Unless required by applicable law or agreed to in writing, software
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14 // distributed under the License is distributed on an "AS IS" BASIS,
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15 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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16 // See the License for the specific language governing permissions and
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17 // limitations under the License.
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18 //
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19 ///////////////////////////////////////////////////////////////////////
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21 #ifndef TESSERACT_WORDREC_LANGUAGE_MODEL_H_
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22 #define TESSERACT_WORDREC_LANGUAGE_MODEL_H_
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24 #include "associate.h" // for AssociateStats (ptr only), AssociateUtils
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25 #include "dawg.h" // for DawgPositionVector
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26 #include "dict.h" // for DawgArgs, Dict
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27 #include "lm_consistency.h" // for LMConsistencyInfo
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28 #include "lm_state.h" // for ViterbiStateEntry, LanguageModelFlagsType
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29 #include "params.h" // for DoubleParam, double_VAR_H, IntParam, Boo...
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30 #include "params_model.h" // for ParamsModel
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31 #include "ratngs.h" // for BLOB_CHOICE (ptr only), BLOB_CHOICE_LIST...
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32 #include "stopper.h" // for DANGERR
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34 #include <cmath> // for exp
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36 namespace tesseract {
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38 class UNICHARSET;
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39 class WERD_RES;
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41 struct BlamerBundle;
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43 template <typename T>
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44 class UnicityTable;
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46 class LMPainPoints;
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47 struct FontInfo;
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49 // This class that contains the data structures and functions necessary
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50 // to represent and use the knowledge about the language.
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51 class LanguageModel {
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52 public:
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53 // Masks for keeping track of top choices that should not be pruned out.
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54 static const LanguageModelFlagsType kSmallestRatingFlag = 0x1;
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55 static const LanguageModelFlagsType kLowerCaseFlag = 0x2;
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56 static const LanguageModelFlagsType kUpperCaseFlag = 0x4;
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57 static const LanguageModelFlagsType kDigitFlag = 0x8;
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58 static const LanguageModelFlagsType kXhtConsistentFlag = 0x10;
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60 // Denominator for normalizing per-letter ngram cost when deriving
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61 // penalty adjustments.
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62 static const float kMaxAvgNgramCost;
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64 LanguageModel(const UnicityTable<FontInfo> *fontinfo_table, Dict *dict);
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65 ~LanguageModel();
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66
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67 // Fills the given floats array with features extracted from path represented
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68 // by the given ViterbiStateEntry. See ccstruct/params_training_featdef.h
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69 // for feature information.
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70 // Note: the function assumes that features points to an array of size
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71 // PTRAIN_NUM_FEATURE_TYPES.
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72 static void ExtractFeaturesFromPath(const ViterbiStateEntry &vse, float features[]);
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74 // Updates data structures that are used for the duration of the segmentation
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75 // search on the current word;
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76 void InitForWord(const WERD_CHOICE *prev_word, bool fixed_pitch, float max_char_wh_ratio,
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77 float rating_cert_scale);
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79 // Updates language model state of the given BLOB_CHOICE_LIST (from
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80 // the ratings matrix) and its parent. Updates pain_points if new
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81 // problematic points are found in the segmentation graph.
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82 //
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83 // At most language_model_viterbi_list_size are kept in each
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84 // LanguageModelState.viterbi_state_entries list.
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85 // At most language_model_viterbi_list_max_num_prunable of those are prunable
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86 // (non-dictionary) paths.
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87 // The entries that represent dictionary word paths are kept at the front
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88 // of the list.
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89 // The list ordered by cost that is computed collectively by several
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90 // language model components (currently dawg and ngram components).
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91 bool UpdateState(bool just_classified, int curr_col, int curr_row, BLOB_CHOICE_LIST *curr_list,
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92 LanguageModelState *parent_node, LMPainPoints *pain_points, WERD_RES *word_res,
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93 BestChoiceBundle *best_choice_bundle, BlamerBundle *blamer_bundle);
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94
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95 // Returns true if an acceptable best choice was discovered.
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96 inline bool AcceptableChoiceFound() {
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parents:
diff changeset
97 return acceptable_choice_found_;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
98 }
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
99 inline void SetAcceptableChoiceFound(bool val) {
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
100 acceptable_choice_found_ = val;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
101 }
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
102 // Returns the reference to ParamsModel.
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
103 inline ParamsModel &getParamsModel() {
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
104 return params_model_;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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105 }
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parents:
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106
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
107 protected:
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
108 inline float CertaintyScore(float cert) {
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
109 if (language_model_use_sigmoidal_certainty) {
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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parents:
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110 // cert is assumed to be between 0 and -dict_->certainty_scale.
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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111 // If you enable language_model_use_sigmoidal_certainty, you
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
112 // need to adjust language_model_ngram_nonmatch_score as well.
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
113 cert = -cert / dict_->certainty_scale;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
114 return 1.0f / (1.0f + exp(10.0f * cert));
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
115 } else {
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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116 return (-1.0f / cert);
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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117 }
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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118 }
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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119
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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120 inline float ComputeAdjustment(int num_problems, float penalty) {
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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121 if (num_problems == 0) {
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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122 return 0.0f;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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123 }
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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124 if (num_problems == 1) {
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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125 return penalty;
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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126 }
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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127 return (penalty + (language_model_penalty_increment * static_cast<float>(num_problems - 1)));
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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128 }
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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129
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parents:
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130 // Computes the adjustment to the ratings sum based on the given
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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131 // consistency_info. The paths with invalid punctuation, inconsistent
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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132 // case and character type are penalized proportionally to the number
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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133 // of inconsistencies on the path.
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
134 inline float ComputeConsistencyAdjustment(const LanguageModelDawgInfo *dawg_info,
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
135 const LMConsistencyInfo &consistency_info) {
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
136 if (dawg_info != nullptr) {
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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137 return ComputeAdjustment(consistency_info.NumInconsistentCase(),
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
138 language_model_penalty_case) +
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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139 (consistency_info.inconsistent_script ? language_model_penalty_script : 0.0f);
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
140 }
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
141 return (ComputeAdjustment(consistency_info.NumInconsistentPunc(), language_model_penalty_punc) +
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
142 ComputeAdjustment(consistency_info.NumInconsistentCase(), language_model_penalty_case) +
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
143 ComputeAdjustment(consistency_info.NumInconsistentChartype(),
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
144 language_model_penalty_chartype) +
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
145 ComputeAdjustment(consistency_info.NumInconsistentSpaces(),
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
146 language_model_penalty_spacing) +
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
147 (consistency_info.inconsistent_script ? language_model_penalty_script : 0.0f) +
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
148 (consistency_info.inconsistent_font ? language_model_penalty_font : 0.0f));
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
149 }
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
150
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
151 // Returns an adjusted ratings sum that includes inconsistency penalties,
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
152 // penalties for non-dictionary paths and paths with dips in ngram
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
153 // probability.
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
154 float ComputeAdjustedPathCost(ViterbiStateEntry *vse);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
155
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
156 // Finds the first lower and upper case letter and first digit in curr_list.
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
157 // Uses the first character in the list in place of empty results.
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
158 // Returns true if both alpha and digits are found.
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
159 bool GetTopLowerUpperDigit(BLOB_CHOICE_LIST *curr_list, BLOB_CHOICE **first_lower,
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
160 BLOB_CHOICE **first_upper, BLOB_CHOICE **first_digit) const;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
161 // Forces there to be at least one entry in the overall set of the
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
162 // viterbi_state_entries of each element of parent_node that has the
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
163 // top_choice_flag set for lower, upper and digit using the same rules as
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
164 // GetTopLowerUpperDigit, setting the flag on the first found suitable
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
165 // candidate, whether or not the flag is set on some other parent.
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
166 // Returns 1 if both alpha and digits are found among the parents, -1 if no
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
167 // parents are found at all (a legitimate case), and 0 otherwise.
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
168 int SetTopParentLowerUpperDigit(LanguageModelState *parent_node) const;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
169
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parents:
diff changeset
170 // Finds the next ViterbiStateEntry with which the given unichar_id can
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
171 // combine sensibly, taking into account any mixed alnum/mixed case
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
172 // situation, and whether this combination has been inspected before.
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
173 ViterbiStateEntry *GetNextParentVSE(bool just_classified, bool mixed_alnum, const BLOB_CHOICE *bc,
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
174 LanguageModelFlagsType blob_choice_flags,
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
175 const UNICHARSET &unicharset, WERD_RES *word_res,
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
176 ViterbiStateEntry_IT *vse_it,
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
177 LanguageModelFlagsType *top_choice_flags) const;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
178 // Helper function that computes the cost of the path composed of the
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
179 // path in the given parent ViterbiStateEntry and the given BLOB_CHOICE.
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
180 // If the new path looks good enough, adds a new ViterbiStateEntry to the
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
181 // list of viterbi entries in the given BLOB_CHOICE and returns true.
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
182 bool AddViterbiStateEntry(LanguageModelFlagsType top_choice_flags, float denom, bool word_end,
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
183 int curr_col, int curr_row, BLOB_CHOICE *b,
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
184 LanguageModelState *curr_state, ViterbiStateEntry *parent_vse,
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
185 LMPainPoints *pain_points, WERD_RES *word_res,
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
186 BestChoiceBundle *best_choice_bundle, BlamerBundle *blamer_bundle);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
187
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
188 // Determines whether a potential entry is a true top choice and
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
189 // updates changed accordingly.
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
190 //
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
191 // Note: The function assumes that b, top_choice_flags and changed
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
192 // are not nullptr.
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
193 void GenerateTopChoiceInfo(ViterbiStateEntry *new_vse, const ViterbiStateEntry *parent_vse,
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194 LanguageModelState *lms);
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195
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196 // Calls dict_->LetterIsOk() with DawgArgs initialized from parent_vse and
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197 // unichar from b.unichar_id(). Constructs and returns LanguageModelDawgInfo
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198 // with updated active dawgs, constraints and permuter.
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199 //
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200 // Note: the caller is responsible for deleting the returned pointer.
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201 LanguageModelDawgInfo *GenerateDawgInfo(bool word_end, int curr_col, int curr_row,
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202 const BLOB_CHOICE &b,
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203 const ViterbiStateEntry *parent_vse);
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204
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205 // Computes p(unichar | parent context) and records it in ngram_cost.
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206 // If b.unichar_id() is an unlikely continuation of the parent context
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207 // sets found_small_prob to true and returns nullptr.
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208 // Otherwise creates a new LanguageModelNgramInfo entry containing the
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209 // updated context (that includes b.unichar_id() at the end) and returns it.
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210 //
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211 // Note: the caller is responsible for deleting the returned pointer.
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212 LanguageModelNgramInfo *GenerateNgramInfo(const char *unichar, float certainty, float denom,
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213 int curr_col, int curr_row, float outline_length,
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214 const ViterbiStateEntry *parent_vse);
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215
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216 // Computes -(log(prob(classifier)) + log(prob(ngram model)))
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217 // for the given unichar in the given context. If there are multiple
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218 // unichars at one position - takes the average of their probabilities.
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219 // UNICHAR::utf8_step() is used to separate out individual UTF8 characters,
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220 // since probability_in_context() can only handle one at a time (while
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221 // unicharset might contain ngrams and glyphs composed from multiple UTF8
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222 // characters).
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223 float ComputeNgramCost(const char *unichar, float certainty, float denom, const char *context,
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224 int *unichar_step_len, bool *found_small_prob, float *ngram_prob);
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225
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226 // Computes the normalization factors for the classifier confidences
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227 // (used by ComputeNgramCost()).
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228 float ComputeDenom(BLOB_CHOICE_LIST *curr_list);
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229
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230 // Fills the given consistency_info based on parent_vse.consistency_info
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231 // and on the consistency of the given unichar_id with parent_vse.
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232 void FillConsistencyInfo(int curr_col, bool word_end, BLOB_CHOICE *b,
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233 ViterbiStateEntry *parent_vse, WERD_RES *word_res,
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234 LMConsistencyInfo *consistency_info);
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235
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236 // Constructs WERD_CHOICE by recording unichar_ids of the BLOB_CHOICEs
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237 // on the path represented by the given BLOB_CHOICE and language model
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238 // state entries (lmse, dse). The path is re-constructed by following
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239 // the parent pointers in the lang model state entries). If the
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240 // constructed WERD_CHOICE is better than the best/raw choice recorded
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241 // in the best_choice_bundle, this function updates the corresponding
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242 // fields and sets best_choice_bunldle->updated to true.
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243 void UpdateBestChoice(ViterbiStateEntry *vse, LMPainPoints *pain_points, WERD_RES *word_res,
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244 BestChoiceBundle *best_choice_bundle, BlamerBundle *blamer_bundle);
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245
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246 // Constructs a WERD_CHOICE by tracing parent pointers starting with
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247 // the given LanguageModelStateEntry. Returns the constructed word.
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248 // Updates best_char_choices, certainties and state if they are not
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249 // nullptr (best_char_choices and certainties are assumed to have the
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250 // length equal to lmse->length).
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251 // The caller is responsible for freeing memory associated with the
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252 // returned WERD_CHOICE.
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253 WERD_CHOICE *ConstructWord(ViterbiStateEntry *vse, WERD_RES *word_res, DANGERR *fixpt,
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254 BlamerBundle *blamer_bundle, bool *truth_path);
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255
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256 // Wrapper around AssociateUtils::ComputeStats().
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257 inline void ComputeAssociateStats(int col, int row, float max_char_wh_ratio,
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258 ViterbiStateEntry *parent_vse, WERD_RES *word_res,
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259 AssociateStats *associate_stats) {
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260 AssociateUtils::ComputeStats(
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261 col, row, (parent_vse != nullptr) ? &(parent_vse->associate_stats) : nullptr,
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262 (parent_vse != nullptr) ? parent_vse->length : 0, fixed_pitch_, max_char_wh_ratio, word_res,
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263 language_model_debug_level > 2, associate_stats);
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264 }
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265
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266 // Returns true if the path with such top_choice_flags and dawg_info
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267 // could be pruned out (i.e. is neither a system/user/frequent dictionary
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268 // nor a top choice path).
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269 // In non-space delimited languages all paths can be "somewhat" dictionary
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270 // words. In such languages we cannot do dictionary-driven path pruning,
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271 // so paths with non-empty dawg_info are considered prunable.
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272 inline bool PrunablePath(const ViterbiStateEntry &vse) {
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273 if (vse.top_choice_flags) {
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274 return false;
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275 }
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276 if (vse.dawg_info != nullptr &&
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277 (vse.dawg_info->permuter == SYSTEM_DAWG_PERM || vse.dawg_info->permuter == USER_DAWG_PERM ||
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278 vse.dawg_info->permuter == FREQ_DAWG_PERM)) {
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279 return false;
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280 }
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281 return true;
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282 }
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283
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284 // Returns true if the given ViterbiStateEntry represents an acceptable path.
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285 inline bool AcceptablePath(const ViterbiStateEntry &vse) {
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286 return (vse.dawg_info != nullptr || vse.Consistent() ||
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287 (vse.ngram_info != nullptr && !vse.ngram_info->pruned));
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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288 }
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289
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parents:
diff changeset
290 public:
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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parents:
diff changeset
291 // Parameters.
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parents:
diff changeset
292 INT_VAR_H(language_model_debug_level);
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
293 BOOL_VAR_H(language_model_ngram_on);
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parents:
diff changeset
294 INT_VAR_H(language_model_ngram_order);
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
295 INT_VAR_H(language_model_viterbi_list_max_num_prunable);
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
296 INT_VAR_H(language_model_viterbi_list_max_size);
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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297 double_VAR_H(language_model_ngram_small_prob);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
298 double_VAR_H(language_model_ngram_nonmatch_score);
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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299 BOOL_VAR_H(language_model_ngram_use_only_first_uft8_step);
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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300 double_VAR_H(language_model_ngram_scale_factor);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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301 double_VAR_H(language_model_ngram_rating_factor);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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302 BOOL_VAR_H(language_model_ngram_space_delimited_language);
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Franz Glasner <fzglas.hg@dom66.de>
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303 INT_VAR_H(language_model_min_compound_length);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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304 // Penalties used for adjusting path costs and final word rating.
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
305 double_VAR_H(language_model_penalty_non_freq_dict_word);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
306 double_VAR_H(language_model_penalty_non_dict_word);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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307 double_VAR_H(language_model_penalty_punc);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
308 double_VAR_H(language_model_penalty_case);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
309 double_VAR_H(language_model_penalty_script);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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310 double_VAR_H(language_model_penalty_chartype);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
311 double_VAR_H(language_model_penalty_font);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
312 double_VAR_H(language_model_penalty_spacing);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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313 double_VAR_H(language_model_penalty_increment);
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
314 INT_VAR_H(wordrec_display_segmentations);
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
315 BOOL_VAR_H(language_model_use_sigmoidal_certainty);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
316
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
317 protected:
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
318 // Member Variables.
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
319
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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320 // Temporary DawgArgs struct that is re-used across different words to
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
321 // avoid dynamic memory re-allocation (should be cleared before each use).
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
322 DawgArgs dawg_args_;
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
323 // Scaling for recovering blob outline length from rating and certainty.
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
324 float rating_cert_scale_ = 0.0f;
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
325
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parents:
diff changeset
326 // The following variables are set at construction time.
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
327
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parents:
diff changeset
328 // Pointer to fontinfo table (not owned by LanguageModel).
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
329 const UnicityTable<FontInfo> *fontinfo_table_ = nullptr;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
330
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parents:
diff changeset
331 // Pointer to Dict class, that is used for querying the dictionaries
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
332 // (the pointer is not owned by LanguageModel).
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
333 Dict *dict_ = nullptr;
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
334
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
335 // TODO(daria): the following variables should become LanguageModel params
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
336 // when the old code in bestfirst.cpp and heuristic.cpp is deprecated.
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
337 //
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
338 // Set to true if we are dealing with fixed pitch text
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
339 // (set to assume_fixed_pitch_char_segment).
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
340 bool fixed_pitch_ = false;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
341 // Max char width-to-height ratio allowed
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
342 // (set to segsearch_max_char_wh_ratio).
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
343 float max_char_wh_ratio_ = 0.0f;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
344
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
345 // The following variables are initialized with InitForWord().
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
346
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
347 // String representation of the classification of the previous word
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
348 // (since this is only used by the character ngram model component,
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
349 // only the last language_model_ngram_order of the word are stored).
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
350 std::string prev_word_str_;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
351 int prev_word_unichar_step_len_ = 0;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
352 // Active dawg vector.
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
353 DawgPositionVector very_beginning_active_dawgs_; // includes continuation
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
354 DawgPositionVector beginning_active_dawgs_;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
355 // Set to true if acceptable choice was discovered.
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
356 // Note: it would be nice to use this to terminate the search once an
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
357 // acceptable choices is found. However we do not do that and once an
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
358 // acceptable choice is found we finish looking for alternative choices
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
359 // in the current segmentation graph and then exit the search (no more
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
360 // classifications are done after an acceptable choice is found).
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
361 // This is needed in order to let the search find the words very close to
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
362 // the best choice in rating (e.g. what/What, Cat/cat, etc) and log these
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
363 // choices. This way the stopper will know that the best choice is not
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
364 // ambiguous (i.e. there are best choices in the best choice list that have
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
365 // ratings close to the very best one) and will be less likely to mis-adapt.
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
366 bool acceptable_choice_found_ = false;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
367 // Set to true if a choice representing correct segmentation was explored.
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
368 bool correct_segmentation_explored_ = false;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
369
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
370 // Params models containing weights for computing ViterbiStateEntry costs.
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
371 ParamsModel params_model_;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
372 };
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
373
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
374 } // namespace tesseract
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
375
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
376 #endif // TESSERACT_WORDREC_LANGUAGE_MODEL_H_