Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/tesseract/src/textord/makerow.h @ 46:7ee69f120f19 default tip

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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: makerow.h (Formerly makerows.h)
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3 * Description: Code to arrange blobs into rows of text.
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4 * Author: Ray Smith
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5 *
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6 * (C) Copyright 1992, Hewlett-Packard Ltd.
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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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18
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19 #ifndef MAKEROW_H
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20 #define MAKEROW_H
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21
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22 #include "blobbox.h"
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23 #include "blobs.h"
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24 #include "ocrblock.h"
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25 #include "params.h"
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26 #include "statistc.h"
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28 namespace tesseract {
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30 enum OVERLAP_STATE {
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31 ASSIGN, // assign it to row
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32 REJECT, // reject it - dual overlap
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33 NEW_ROW
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34 };
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35
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36 enum ROW_CATEGORY {
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37 ROW_ASCENDERS_FOUND,
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38 ROW_DESCENDERS_FOUND,
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39 ROW_UNKNOWN,
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40 ROW_INVALID,
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41 };
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42
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43 extern BOOL_VAR_H(textord_heavy_nr);
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44 extern BOOL_VAR_H(textord_show_initial_rows);
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45 extern BOOL_VAR_H(textord_show_parallel_rows);
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46 extern BOOL_VAR_H(textord_show_expanded_rows);
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47 extern BOOL_VAR_H(textord_show_final_rows);
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48 extern BOOL_VAR_H(textord_show_final_blobs);
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49 extern BOOL_VAR_H(textord_test_landscape);
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50 extern BOOL_VAR_H(textord_parallel_baselines);
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51 extern BOOL_VAR_H(textord_straight_baselines);
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52 extern BOOL_VAR_H(textord_old_baselines);
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53 extern BOOL_VAR_H(textord_old_xheight);
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54 extern BOOL_VAR_H(textord_fix_xheight_bug);
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55 extern BOOL_VAR_H(textord_fix_makerow_bug);
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56 extern BOOL_VAR_H(textord_debug_xheights);
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57 extern INT_VAR_H(textord_test_x);
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58 extern INT_VAR_H(textord_test_y);
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59 extern INT_VAR_H(textord_min_blobs_in_row);
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60 extern INT_VAR_H(textord_spline_minblobs);
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61 extern INT_VAR_H(textord_spline_medianwin);
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62 extern INT_VAR_H(textord_min_xheight);
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63 extern double_VAR_H(textord_spline_shift_fraction);
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64 extern double_VAR_H(textord_skew_ile);
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65 extern double_VAR_H(textord_skew_lag);
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66 extern double_VAR_H(textord_linespace_iqrlimit);
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67 extern double_VAR_H(textord_width_limit);
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68 extern double_VAR_H(textord_chop_width);
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69 extern double_VAR_H(textord_minxh);
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70 extern double_VAR_H(textord_min_linesize);
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71 extern double_VAR_H(textord_excess_blobsize);
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72 extern double_VAR_H(textord_occupancy_threshold);
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73 extern double_VAR_H(textord_underline_width);
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74 extern double_VAR_H(textord_min_blob_height_fraction);
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75 extern double_VAR_H(textord_xheight_mode_fraction);
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76 extern double_VAR_H(textord_ascheight_mode_fraction);
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77 extern double_VAR_H(textord_ascx_ratio_min);
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78 extern double_VAR_H(textord_ascx_ratio_max);
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79 extern double_VAR_H(textord_descx_ratio_min);
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80 extern double_VAR_H(textord_descx_ratio_max);
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81 extern double_VAR_H(textord_xheight_error_margin);
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82 extern INT_VAR_H(textord_lms_line_trials);
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83 extern BOOL_VAR_H(textord_new_initial_xheight);
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84 extern BOOL_VAR_H(textord_debug_blob);
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85
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86 inline void get_min_max_xheight(int block_linesize, int *min_height, int *max_height) {
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87 *min_height = static_cast<int32_t>(floor(block_linesize * textord_minxh));
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88 if (*min_height < textord_min_xheight) {
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89 *min_height = textord_min_xheight;
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90 }
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91 *max_height = static_cast<int32_t>(ceil(block_linesize * 3.0));
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92 }
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93
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94 inline ROW_CATEGORY get_row_category(const TO_ROW *row) {
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95 if (row->xheight <= 0) {
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
96 return ROW_INVALID;
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
97 }
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 return (row->ascrise > 0) ? ROW_ASCENDERS_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
99 : (row->descdrop != 0) ? ROW_DESCENDERS_FOUND : ROW_UNKNOWN;
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 }
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
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
102 inline bool within_error_margin(float test, float num, float margin) {
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 return (test >= num * (1 - margin) && test <= num * (1 + margin));
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 }
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
105
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
106 void fill_heights(TO_ROW *row, float gradient, int min_height, int max_height, STATS *heights,
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
107 STATS *floating_heights);
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
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 float make_single_row(ICOORD page_tr, bool allow_sub_blobs, TO_BLOCK *block, TO_BLOCK_LIST *blocks);
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
110 float make_rows(ICOORD page_tr, // top 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
111 TO_BLOCK_LIST *port_blocks);
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 void make_initial_textrows(ICOORD page_tr,
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 TO_BLOCK *block, // block to do
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 FCOORD rotation, // for drawing
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 bool testing_on); // correct orientation
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
116 void fit_lms_line(TO_ROW *row);
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
117 void compute_page_skew(TO_BLOCK_LIST *blocks, // list of blocks
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
118 float &page_m, // average gradient
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
119 float &page_err); // average error
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
120 void vigorous_noise_removal(TO_BLOCK *block);
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
121 void cleanup_rows_making(ICOORD page_tr, // top 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
122 TO_BLOCK *block, // block to do
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
123 float gradient, // gradient to fit
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
124 FCOORD rotation, // for drawing
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
125 int32_t block_edge, // edge of block
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
126 bool testing_on); // correct orientation
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
127 void delete_non_dropout_rows( // find lines
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
128 TO_BLOCK *block, // block to do
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
129 float gradient, // global skew
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
130 FCOORD rotation, // deskew 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
131 int32_t block_edge, // left edge
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
132 bool testing_on // correct orientation
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
133 );
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
134 bool find_best_dropout_row( // find neighbours
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 TO_ROW *row, // row to test
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 int32_t distance, // dropout dist
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
137 float dist_limit, // threshold distance
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 int32_t line_index, // index of row
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
139 TO_ROW_IT *row_it, // current position
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
140 bool testing_on // correct orientation
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
141 );
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 TBOX deskew_block_coords( // block 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
143 TO_BLOCK *block, // block to do
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 float gradient // global skew
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
145 );
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 void compute_line_occupation( // project blobs
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 TO_BLOCK *block, // block to do
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
148 float gradient, // global skew
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
149 int32_t min_y, // min coord in block
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
150 int32_t max_y, // in block
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
151 int32_t *occupation, // output projection
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 int32_t *deltas // derivative
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 );
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 void compute_occupation_threshold( // project blobs
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 int32_t low_window, // below result point
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
156 int32_t high_window, // above result point
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 int32_t line_count, // array sizes
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 int32_t *occupation, // input projection
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 int32_t *thresholds // output thresholds
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 );
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 void compute_dropout_distances( // project blobs
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 int32_t *occupation, // input projection
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 int32_t *thresholds, // output thresholds
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 int32_t line_count // array sizes
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 );
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 void expand_rows( // find lines
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 ICOORD page_tr, // top 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
168 TO_BLOCK *block, // block to do
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 float gradient, // gradient to fit
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 FCOORD rotation, // for drawing
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 int32_t block_edge, // edge of block
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 bool testing_on // correct orientation
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 );
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 void adjust_row_limits( // tidy limits
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 TO_BLOCK *block // block to do
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 );
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 void compute_row_stats( // find lines
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 TO_BLOCK *block, // block to do
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 bool testing_on // correct orientation
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 );
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 float median_block_xheight( // find lines
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 TO_BLOCK *block, // block to do
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 float gradient // global skew
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 );
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
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 int compute_xheight_from_modes(STATS *heights, STATS *floating_heights, bool cap_only,
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 int min_height, int max_height, float *xheight, float *ascrise);
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
188
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 int32_t compute_row_descdrop(TO_ROW *row, // row to do
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 float gradient, // global skew
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
191 int xheight_blob_count, STATS *heights);
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 int32_t compute_height_modes(STATS *heights, // stats to search
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 int32_t min_height, // bottom of range
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
194 int32_t max_height, // top of range
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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195 int32_t *modes, // output array
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196 int32_t maxmodes); // size of modes
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197 void correct_row_xheight(TO_ROW *row, // row to fix
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198 float xheight, // average values
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199 float ascrise, float descdrop);
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200 void separate_underlines(TO_BLOCK *block, // block to do
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201 float gradient, // skew angle
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202 FCOORD rotation, // inverse landscape
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203 bool testing_on); // correct orientation
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Franz Glasner <fzglas.hg@dom66.de>
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204 void pre_associate_blobs(ICOORD page_tr, // top right
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205 TO_BLOCK *block, // block to do
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parents:
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206 FCOORD rotation, // inverse landscape
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Franz Glasner <fzglas.hg@dom66.de>
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207 bool testing_on); // correct orientation
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Franz Glasner <fzglas.hg@dom66.de>
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208 void fit_parallel_rows(TO_BLOCK *block, // block to do
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209 float gradient, // gradient to fit
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Franz Glasner <fzglas.hg@dom66.de>
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210 FCOORD rotation, // for drawing
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Franz Glasner <fzglas.hg@dom66.de>
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211 int32_t block_edge, // edge of block
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Franz Glasner <fzglas.hg@dom66.de>
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212 bool testing_on); // correct orientation
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213 void fit_parallel_lms(float gradient, // forced gradient
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214 TO_ROW *row); // row to fit
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215 void make_baseline_spline(TO_ROW *row, // row to fit
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216 TO_BLOCK *block); // block it came from
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217 bool segment_baseline( // split baseline
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218 TO_ROW *row, // row to fit
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219 TO_BLOCK *block, // block it came from
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220 int32_t &segments, // no fo segments
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221 int32_t *xstarts // coords of segments
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parents:
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222 );
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parents:
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223 double *linear_spline_baseline( // split baseline
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224 TO_ROW *row, // row to fit
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Franz Glasner <fzglas.hg@dom66.de>
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225 TO_BLOCK *block, // block it came from
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226 int32_t &segments, // no fo segments
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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227 int32_t xstarts[] // coords of segments
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228 );
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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229 void assign_blobs_to_rows( // find lines
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Franz Glasner <fzglas.hg@dom66.de>
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230 TO_BLOCK *block, // block to do
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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231 float *gradient, // block skew
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Franz Glasner <fzglas.hg@dom66.de>
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232 int pass, // identification
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Franz Glasner <fzglas.hg@dom66.de>
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233 bool reject_misses, // chuck big ones out
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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234 bool make_new_rows, // add rows for unmatched
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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235 bool drawing_skew // draw smoothed skew
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parents:
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236 );
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Franz Glasner <fzglas.hg@dom66.de>
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237 // find best row
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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238 OVERLAP_STATE most_overlapping_row(TO_ROW_IT *row_it, // iterator
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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239 TO_ROW *&best_row, // output row
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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240 float top, // top of blob
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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241 float bottom, // bottom of blob
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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242 float rowsize, // max row size
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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243 bool testing_blob // test stuff
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parents:
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244 );
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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245 int blob_x_order( // sort function
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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246 const void *item1, // items to compare
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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247 const void *item2);
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248
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parents:
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249 void mark_repeated_chars(TO_ROW *row);
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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250
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parents:
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251 } // namespace tesseract
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252
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253 #endif