Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/tesseract/src/wordrec/wordrec.cpp @ 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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1 ///////////////////////////////////////////////////////////////////////
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2 // File: wordrec.cpp
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3 // Description: wordrec class.
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4 // Author: Samuel Charron
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5 //
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6 // (C) Copyright 2006, Google Inc.
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7 // Licensed under the Apache License, Version 2.0 (the "License");
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8 // you may not use this file except in compliance with the License.
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9 // You may obtain a copy of the License at
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10 // http://www.apache.org/licenses/LICENSE-2.0
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11 // Unless required by applicable law or agreed to in writing, software
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12 // distributed under the License is distributed on an "AS IS" BASIS,
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13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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14 // See the License for the specific language governing permissions and
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15 // limitations under the License.
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16 //
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17 ///////////////////////////////////////////////////////////////////////
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19 #include "wordrec.h"
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21 #include <memory>
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23 #ifdef DISABLED_LEGACY_ENGINE
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25 # include "params.h"
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27 namespace tesseract {
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28 Wordrec::Wordrec()
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29 : // control parameters
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31 BOOL_MEMBER(wordrec_debug_blamer, false, "Print blamer debug messages", params())
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32 ,
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34 BOOL_MEMBER(wordrec_run_blamer, false, "Try to set the blame for errors", params()) {
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35 prev_word_best_choice_ = nullptr;
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36 }
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38 } // namespace tesseract
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40 #else // DISABLED_LEGACY_ENGINE not defined
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42 # include "language_model.h"
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43 # include "params.h"
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45 namespace tesseract {
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46 Wordrec::Wordrec()
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47 : // control parameters
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48 BOOL_MEMBER(merge_fragments_in_matrix, true,
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49 "Merge the fragments in the ratings matrix and delete them"
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50 " after merging",
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51 params())
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52 , BOOL_MEMBER(wordrec_enable_assoc, true, "Associator Enable", params())
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53 , BOOL_MEMBER(force_word_assoc, false,
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54 "force associator to run regardless of what enable_assoc is."
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55 " This is used for CJK where component grouping is necessary.",
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56 CCUtil::params())
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57 , INT_MEMBER(repair_unchopped_blobs, 1, "Fix blobs that aren't chopped", params())
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58 , double_MEMBER(tessedit_certainty_threshold, -2.25, "Good blob limit", params())
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59 , INT_MEMBER(chop_debug, 0, "Chop debug", params())
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60 , BOOL_MEMBER(chop_enable, 1, "Chop enable", params())
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61 , BOOL_MEMBER(chop_vertical_creep, 0, "Vertical creep", params())
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62 , INT_MEMBER(chop_split_length, 10000, "Split Length", params())
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63 , INT_MEMBER(chop_same_distance, 2, "Same distance", params())
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64 , INT_MEMBER(chop_min_outline_points, 6, "Min Number of Points on Outline", params())
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65 , INT_MEMBER(chop_seam_pile_size, 150, "Max number of seams in seam_pile", params())
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66 , BOOL_MEMBER(chop_new_seam_pile, 1, "Use new seam_pile", params())
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67 , INT_MEMBER(chop_inside_angle, -50, "Min Inside Angle Bend", params())
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68 , INT_MEMBER(chop_min_outline_area, 2000, "Min Outline Area", params())
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69 , double_MEMBER(chop_split_dist_knob, 0.5, "Split length adjustment", params())
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70 , double_MEMBER(chop_overlap_knob, 0.9, "Split overlap adjustment", params())
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71 , double_MEMBER(chop_center_knob, 0.15, "Split center adjustment", params())
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72 , INT_MEMBER(chop_centered_maxwidth, 90,
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73 "Width of (smaller) chopped blobs "
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74 "above which we don't care that a chop is not near the center.",
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75 params())
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76 , double_MEMBER(chop_sharpness_knob, 0.06, "Split sharpness adjustment", params())
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77 , double_MEMBER(chop_width_change_knob, 5.0, "Width change adjustment", params())
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78 , double_MEMBER(chop_ok_split, 100.0, "OK split limit", params())
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79 , double_MEMBER(chop_good_split, 50.0, "Good split limit", params())
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80 , INT_MEMBER(chop_x_y_weight, 3, "X / Y length weight", params())
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81 , BOOL_MEMBER(assume_fixed_pitch_char_segment, false,
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82 "include fixed-pitch heuristics in char segmentation", params())
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83 , INT_MEMBER(wordrec_debug_level, 0, "Debug level for wordrec", params())
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84 , INT_MEMBER(wordrec_max_join_chunks, 4, "Max number of broken pieces to associate", params())
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85 , BOOL_MEMBER(wordrec_skip_no_truth_words, false,
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86 "Only run OCR for words that had truth recorded in BlamerBundle", params())
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87 , BOOL_MEMBER(wordrec_debug_blamer, false, "Print blamer debug messages", params())
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88 , BOOL_MEMBER(wordrec_run_blamer, false, "Try to set the blame for errors", params())
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89 , INT_MEMBER(segsearch_debug_level, 0, "SegSearch debug level", params())
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90 , INT_MEMBER(segsearch_max_pain_points, 2000,
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91 "Maximum number of pain points stored in the queue", params())
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92 , INT_MEMBER(segsearch_max_futile_classifications, 20,
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93 "Maximum number of pain point classifications per chunk that"
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94 " did not result in finding a better word choice.",
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95 params())
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96 , double_MEMBER(segsearch_max_char_wh_ratio, 2.0, "Maximum character width-to-height ratio",
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97 params())
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98 , BOOL_MEMBER(save_alt_choices, true,
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99 "Save alternative paths found during chopping"
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100 " and segmentation search",
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101 params())
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102 , language_model_(std::make_unique<LanguageModel>(&get_fontinfo_table(), &(getDict())))
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103 , pass2_ok_split(0.0f)
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104 , prev_word_best_choice_(nullptr)
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105 , fill_lattice_(nullptr) {
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106 }
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107
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108 } // namespace tesseract
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109
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110 #endif // DISABLED_LEGACY_ENGINE