Mercurial > hgrepos > Python2 > PyMuPDF

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>>>>> tag v1.26.5+1 for changeset b74429b0f5c4
author Franz Glasner <fzglas.hg@dom66.de>
date Sat, 11 Oct 2025 17:17:30 +0200
parents b50eed0cc0ef
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
2
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1 ///////////////////////////////////////////////////////////////////////
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2 // File: blamer.h
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3 // Description: Module allowing precise error causes to be allocated.
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4 // Author: Rike Antonova
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5 // Refactored: Ray Smith
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6 //
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7 // (C) Copyright 2013, Google Inc.
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8 // Licensed under the Apache License, Version 2.0 (the "License");
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9 // you may not use this file except in compliance with the License.
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10 // You may obtain a copy of the License at
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11 // http://www.apache.org/licenses/LICENSE-2.0
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12 // Unless required by applicable law or agreed to in writing, software
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13 // distributed under the License is distributed on an "AS IS" BASIS,
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14 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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15 // See the License for the specific language governing permissions and
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16 // limitations under the License.
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17 //
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18 ///////////////////////////////////////////////////////////////////////
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19
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20 #ifndef TESSERACT_CCSTRUCT_BLAMER_H_
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21 #define TESSERACT_CCSTRUCT_BLAMER_H_
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22
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23 #ifdef HAVE_CONFIG_H
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24 # include "config_auto.h" // DISABLED_LEGACY_ENGINE
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25 #endif
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26 #include "boxword.h" // for BoxWord
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27 #ifndef DISABLED_LEGACY_ENGINE
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28 # include "params_training_featdef.h" // for ParamsTrainingBundle, ParamsTra...
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29 #endif // ndef DISABLED_LEGACY_ENGINE
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30 #include "ratngs.h" // for BLOB_CHOICE_LIST (ptr only)
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31 #include "rect.h" // for TBOX
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32 #include "tprintf.h" // for tprintf
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33
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34 #include <tesseract/unichar.h> // for UNICHAR_ID
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35
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36 #include <cstdint> // for int16_t
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37 #include <cstring> // for memcpy
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38 #include <vector> // for std::vector
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39
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40 namespace tesseract {
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41
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42 class DENORM;
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43 class MATRIX;
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44 class UNICHARSET;
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45 class WERD_RES;
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46
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47 struct MATRIX_COORD;
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48 struct TWERD;
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49
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50 class LMPainPoints;
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51
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52 static const int16_t kBlamerBoxTolerance = 5;
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53
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54 // Enum for expressing the source of error.
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55 // Note: Please update kIncorrectResultReasonNames when modifying this enum.
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56 enum IncorrectResultReason {
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57 // The text recorded in best choice == truth text
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58 IRR_CORRECT,
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59 // Either: Top choice is incorrect and is a dictionary word (language model
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60 // is unlikely to help correct such errors, so blame the classifier).
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61 // Or: the correct unichar was not included in shortlist produced by the
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62 // classifier at all.
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63 IRR_CLASSIFIER,
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64 // Chopper have not found one or more splits that correspond to the correct
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65 // character bounding boxes recorded in BlamerBundle::truth_word.
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66 IRR_CHOPPER,
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67 // Classifier did include correct unichars for each blob in the correct
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68 // segmentation, however its rating could have been too bad to allow the
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69 // language model to pull out the correct choice. On the other hand the
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70 // strength of the language model might have been too weak to favor the
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71 // correct answer, this we call this case a classifier-language model
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72 // tradeoff error.
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73 IRR_CLASS_LM_TRADEOFF,
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74 // Page layout failed to produce the correct bounding box. Blame page layout
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75 // if the truth was not found for the word, which implies that the bounding
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76 // box of the word was incorrect (no truth word had a similar bounding box).
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77 IRR_PAGE_LAYOUT,
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78 // SegSearch heuristic prevented one or more blobs from the correct
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79 // segmentation state to be classified (e.g. the blob was too wide).
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80 IRR_SEGSEARCH_HEUR,
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81 // The correct segmentaiton state was not explored because of poor SegSearch
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82 // pain point prioritization. We blame SegSearch pain point prioritization
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83 // if the best rating of a choice constructed from correct segmentation is
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84 // better than that of the best choice (i.e. if we got to explore the correct
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85 // segmentation state, language model would have picked the correct choice).
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86 IRR_SEGSEARCH_PP,
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87 // Same as IRR_CLASS_LM_TRADEOFF, but used when we only run chopper on a word,
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88 // and thus use the old language model (permuters).
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89 // TODO(antonova): integrate the new language mode with chopper
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90 IRR_CLASS_OLD_LM_TRADEOFF,
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91 // If there is an incorrect adaptive template match with a better score than
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92 // a correct one (either pre-trained or adapted), mark this as adaption error.
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93 IRR_ADAPTION,
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94 // split_and_recog_word() failed to find a suitable split in truth.
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95 IRR_NO_TRUTH_SPLIT,
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96 // Truth is not available for this word (e.g. when words in corrected content
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97 // file are turned into ~~~~ because an appropriate alignment was not found.
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diff changeset
98 IRR_NO_TRUTH,
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99 // The text recorded in best choice != truth text, but none of the above
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100 // reasons are set.
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parents:
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101 IRR_UNKNOWN,
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102
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parents:
diff changeset
103 IRR_NUM_REASONS
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parents:
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104 };
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105
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106 // Blamer-related information to determine the source of errors.
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parents:
diff changeset
107 struct BlamerBundle {
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108 static const char *IncorrectReasonName(IncorrectResultReason irr);
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109 BlamerBundle()
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110 : truth_has_char_boxes_(false)
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111 , incorrect_result_reason_(IRR_CORRECT)
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112 , lattice_data_(nullptr) {
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113 ClearResults();
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114 }
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parents:
diff changeset
115 BlamerBundle(const BlamerBundle &other) {
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116 this->CopyTruth(other);
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117 this->CopyResults(other);
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118 }
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119 ~BlamerBundle() {
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120 delete[] lattice_data_;
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121 }
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122
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parents:
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123 // Accessors.
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124 std::string TruthString() const {
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125 std::string truth_str;
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126 for (auto &text : truth_text_) {
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127 truth_str += text;
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128 }
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129 return truth_str;
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130 }
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parents:
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131 IncorrectResultReason incorrect_result_reason() const {
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132 return incorrect_result_reason_;
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133 }
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parents:
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134 bool NoTruth() const {
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135 return incorrect_result_reason_ == IRR_NO_TRUTH || incorrect_result_reason_ == IRR_PAGE_LAYOUT;
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136 }
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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137 bool HasDebugInfo() const {
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138 return debug_.length() > 0 || misadaption_debug_.length() > 0;
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139 }
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parents:
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140 const std::string &debug() const {
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parents:
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141 return debug_;
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142 }
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parents:
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143 const std::string &misadaption_debug() const {
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parents:
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144 return misadaption_debug_;
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145 }
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parents:
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146 void UpdateBestRating(float rating) {
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147 if (rating < best_correctly_segmented_rating_) {
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148 best_correctly_segmented_rating_ = rating;
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149 }
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150 }
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parents:
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151 int correct_segmentation_length() const {
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152 return correct_segmentation_cols_.size();
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153 }
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parents:
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154 // Returns true if the given ratings matrix col,row position is included
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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155 // in the correct segmentation path at the given index.
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
156 bool MatrixPositionCorrect(int index, const MATRIX_COORD &coord) {
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parents:
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157 return correct_segmentation_cols_[index] == coord.col &&
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parents:
diff changeset
158 correct_segmentation_rows_[index] == coord.row;
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159 }
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
160 void set_best_choice_is_dict_and_top_choice(bool value) {
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
161 best_choice_is_dict_and_top_choice_ = value;
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parents:
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162 }
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
163 const char *lattice_data() 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
164 return lattice_data_;
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parents:
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165 }
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
166 int lattice_size() const {
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
167 return lattice_size_; // size of lattice_data in bytes
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parents:
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168 }
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
169 void set_lattice_data(const char *data, int size) {
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
170 lattice_size_ = size;
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
171 delete[] lattice_data_;
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
172 lattice_data_ = new char[lattice_size_];
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
173 memcpy(lattice_data_, data, lattice_size_);
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parents:
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174 }
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
175 #ifndef DISABLED_LEGACY_ENGINE
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diff changeset
176 const tesseract::ParamsTrainingBundle &params_training_bundle() const {
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parents:
diff changeset
177 return params_training_bundle_;
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178 }
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179 // Adds a new ParamsTrainingHypothesis to the current hypothesis list.
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parents:
diff changeset
180 void AddHypothesis(const tesseract::ParamsTrainingHypothesis &hypo) {
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parents:
diff changeset
181 params_training_bundle_.AddHypothesis(hypo);
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182 }
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parents:
diff changeset
183 #endif // ndef DISABLED_LEGACY_ENGINE
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parents:
diff changeset
184
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parents:
diff changeset
185 // Functions to setup the blamer.
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
186 // Whole word string, whole word bounding box.
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
187 void SetWordTruth(const UNICHARSET &unicharset, const char *truth_str, const TBOX &word_box);
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parents:
diff changeset
188 // Single "character" string, "character" bounding box.
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
189 // May be called multiple times to indicate the characters in a word.
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
190 void SetSymbolTruth(const UNICHARSET &unicharset, const char *char_str, const TBOX &char_box);
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
191 // Marks that there is something wrong with the truth text, like it contains
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
192 // reject characters.
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
193 void SetRejectedTruth();
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parents:
diff changeset
194
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parents:
diff changeset
195 // Returns true if the provided word_choice is correct.
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
196 bool ChoiceIsCorrect(const WERD_CHOICE *word_choice) const;
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parents:
diff changeset
197
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
198 void ClearResults() {
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
199 norm_truth_word_.DeleteAllBoxes();
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
200 norm_box_tolerance_ = 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
201 if (!NoTruth()) {
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
202 incorrect_result_reason_ = IRR_CORRECT;
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
203 }
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
204 debug_ = "";
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
205 segsearch_is_looking_for_blame_ = 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
206 best_correctly_segmented_rating_ = WERD_CHOICE::kBadRating;
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
207 correct_segmentation_cols_.clear();
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
208 correct_segmentation_rows_.clear();
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
209 best_choice_is_dict_and_top_choice_ = 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
210 delete[] lattice_data_;
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
211 lattice_data_ = 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
212 lattice_size_ = 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
213 }
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
214 void CopyTruth(const BlamerBundle &other) {
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
215 truth_has_char_boxes_ = other.truth_has_char_boxes_;
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
216 truth_word_ = other.truth_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
217 truth_text_ = other.truth_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
218 incorrect_result_reason_ = (other.NoTruth() ? other.incorrect_result_reason_ : IRR_CORRECT);
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
219 }
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
220 void CopyResults(const BlamerBundle &other) {
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
221 norm_truth_word_ = other.norm_truth_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
222 norm_box_tolerance_ = other.norm_box_tolerance_;
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
223 incorrect_result_reason_ = other.incorrect_result_reason_;
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
224 segsearch_is_looking_for_blame_ = other.segsearch_is_looking_for_blame_;
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
225 best_correctly_segmented_rating_ = other.best_correctly_segmented_rating_;
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
226 correct_segmentation_cols_ = other.correct_segmentation_cols_;
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
227 correct_segmentation_rows_ = other.correct_segmentation_rows_;
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
228 best_choice_is_dict_and_top_choice_ = other.best_choice_is_dict_and_top_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
229 if (other.lattice_data_ != 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
230 lattice_data_ = new char[other.lattice_size_];
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
231 memcpy(lattice_data_, other.lattice_data_, other.lattice_size_);
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
232 lattice_size_ = other.lattice_size_;
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
233 } 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:
diff changeset
234 lattice_data_ = 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
235 }
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
236 }
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
237 const char *IncorrectReason() 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
238
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
239 // Appends choice and truth details to the given debug string.
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
240 void FillDebugString(const std::string &msg, const WERD_CHOICE *choice, std::string &debug);
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
241
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
242 // Sets up the norm_truth_word from truth_word using the given DENORM.
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
243 void SetupNormTruthWord(const DENORM &denorm);
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
244
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
245 // Splits *this into two pieces in bundle1 and bundle2 (preallocated, empty
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
246 // bundles) where the right edge/ of the left-hand word is word1_right,
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
247 // and the left edge of the right-hand word is word2_left.
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
248 void SplitBundle(int word1_right, int word2_left, bool debug, BlamerBundle *bundle1,
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
249 BlamerBundle *bundle2) 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
250 // "Joins" the blames from bundle1 and bundle2 into *this.
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
251 void JoinBlames(const BlamerBundle &bundle1, const BlamerBundle &bundle2, bool debug);
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
252
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
253 // If a blob with the same bounding box as one of the truth character
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
254 // bounding boxes is not classified as the corresponding truth character
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
255 // blames character classifier for incorrect answer.
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
256 void BlameClassifier(const UNICHARSET &unicharset, const TBOX &blob_box,
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
257 const BLOB_CHOICE_LIST &choices, bool debug);
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
258
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
259 // Checks whether chops were made at all the character bounding box
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
260 // boundaries in word->truth_word. If not - blames the chopper for 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
261 // incorrect answer.
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
262 void SetChopperBlame(const WERD_RES *word, bool debug);
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
263 // Blames the classifier or the language model if, after running only 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
264 // chopper, best_choice is incorrect and no blame has been yet set.
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
265 // Blames the classifier if best_choice is classifier's top choice and is a
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
266 // dictionary word (i.e. language model could not have helped).
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
267 // Otherwise, blames the language model (formerly permuter word adjustment).
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
268 void BlameClassifierOrLangModel(const WERD_RES *word, const UNICHARSET &unicharset,
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
269 bool valid_permuter, bool debug);
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
270 // Sets up the correct_segmentation_* to mark the correct bounding boxes.
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
271 void SetupCorrectSegmentation(const TWERD *word, bool debug);
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
272
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
273 // Returns true if a guided segmentation search is needed.
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
274 bool GuidedSegsearchNeeded(const WERD_CHOICE *best_choice) 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
275 // Setup ready to guide the segmentation search to the correct segmentation.
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
276 void InitForSegSearch(const WERD_CHOICE *best_choice, MATRIX *ratings, UNICHAR_ID wildcard_id,
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
277 bool debug, std::string &debug_str, tesseract::LMPainPoints *pain_points,
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
278 double max_char_wh_ratio, 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
279 // Returns true if the guided segsearch is in progress.
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
280 bool GuidedSegsearchStillGoing() 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
281 // The segmentation search has ended. Sets the blame appropriately.
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
282 void FinishSegSearch(const WERD_CHOICE *best_choice, bool debug, std::string &debug_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
283
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
284 // If the bundle is null or still does not indicate the correct result,
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
285 // fix it and use some backup reason for the blame.
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
286 static void LastChanceBlame(bool debug, WERD_RES *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
287
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
288 // Sets the misadaption debug if this word is incorrect, as this word is
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
289 // being adapted 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
290 void SetMisAdaptionDebug(const WERD_CHOICE *best_choice, bool debug);
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
291
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
292 private:
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
293 // Copy assignment operator (currently unused, therefore private).
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
294 BlamerBundle &operator=(const BlamerBundle &other) = delete;
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295 void SetBlame(IncorrectResultReason irr, const std::string &msg, const WERD_CHOICE *choice,
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296 bool debug) {
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297 incorrect_result_reason_ = irr;
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298 debug_ = IncorrectReason();
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299 debug_ += " to blame: ";
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300 FillDebugString(msg, choice, debug_);
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301 if (debug) {
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302 tprintf("SetBlame(): %s", debug_.c_str());
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303 }
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304 }
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305
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306 private:
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307 // Set to true when bounding boxes for individual unichars are recorded.
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308 bool truth_has_char_boxes_;
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309 // Variables used by the segmentation search when looking for the blame.
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310 // Set to true while segmentation search is continued after the usual
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311 // termination condition in order to look for the blame.
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312 bool segsearch_is_looking_for_blame_;
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313 // Set to true if best choice is a dictionary word and
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314 // classifier's top choice.
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315 bool best_choice_is_dict_and_top_choice_;
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316 // Tolerance for bounding box comparisons in normalized space.
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317 int norm_box_tolerance_;
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318 // The true_word (in the original image coordinate space) contains ground
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319 // truth bounding boxes for this WERD_RES.
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320 tesseract::BoxWord truth_word_;
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321 // Same as above, but in normalized coordinates
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322 // (filled in by WERD_RES::SetupForRecognition()).
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323 tesseract::BoxWord norm_truth_word_;
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324 // Contains ground truth unichar for each of the bounding boxes in truth_word.
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325 std::vector<std::string> truth_text_;
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326 // The reason for incorrect OCR result.
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327 IncorrectResultReason incorrect_result_reason_;
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328 // Debug text associated with the blame.
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329 std::string debug_;
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330 // Misadaption debug information (filled in if this word was misadapted to).
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331 std::string misadaption_debug_;
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332 // Vectors populated by SegSearch to indicate column and row indices that
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333 // correspond to blobs with correct bounding boxes.
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334 std::vector<int> correct_segmentation_cols_;
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335 std::vector<int> correct_segmentation_rows_;
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336 // Best rating for correctly segmented path
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337 // (set and used by SegSearch when looking for blame).
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338 float best_correctly_segmented_rating_;
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339 int lattice_size_; // size of lattice_data in bytes
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340 // Serialized segmentation search lattice.
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341 char *lattice_data_;
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342 // Information about hypotheses (paths) explored by the segmentation search.
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343 #ifndef DISABLED_LEGACY_ENGINE
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344 tesseract::ParamsTrainingBundle params_training_bundle_;
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345 #endif // ndef DISABLED_LEGACY_ENGINE
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346 };
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347
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348 } // namespace tesseract
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349
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350 #endif // TESSERACT_CCSTRUCT_BLAMER_H_