Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/tesseract/src/wordrec/gradechop.cpp @ 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:
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1 /******************************************************************************
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2 *
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3 * File: gradechop.cpp (Formerly gradechop.c)
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4 * Description:
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5 * Author: Mark Seaman, OCR Technology
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6 *
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7 * (c) Copyright 1987, Hewlett-Packard Company.
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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 I n c l u d e s
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21 ----------------------------------------------------------------------*/
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23 #include <algorithm>
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24 #include <cmath>
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25 #include "chop.h"
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26 #include "wordrec.h"
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28 /*----------------------------------------------------------------------
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29 M a c r o s
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30 ----------------------------------------------------------------------*/
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32 namespace tesseract {
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34 /*----------------------------------------------------------------------
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35 F u n c t i o n s
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36 ----------------------------------------------------------------------*/
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38 /**********************************************************************
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39 * grade_split_length
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40 *
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41 * Return a grade for the length of this split.
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42 * 0 = "perfect"
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43 * 100 = "no way jay"
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44 **********************************************************************/
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45 PRIORITY Wordrec::grade_split_length(SPLIT *split) {
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46 PRIORITY grade;
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47 float split_length;
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49 split_length = split->point1->WeightedDistance(*split->point2, chop_x_y_weight);
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51 if (split_length <= 0) {
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52 grade = 0;
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53 } else {
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54 grade = std::sqrt(split_length) * chop_split_dist_knob;
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55 }
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57 return (std::max(0.0f, grade));
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58 }
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60 /**********************************************************************
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61 * grade_sharpness
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62 *
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63 * Return a grade for the sharpness of this split.
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64 * 0 = "perfect"
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65 * 100 = "no way jay"
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66 **********************************************************************/
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67 PRIORITY Wordrec::grade_sharpness(SPLIT *split) {
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68 PRIORITY grade;
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70 grade = point_priority(split->point1) + point_priority(split->point2);
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72 if (grade < -360.0) {
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73 grade = 0;
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74 } else {
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75 grade += 360.0;
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76 }
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78 grade *= chop_sharpness_knob; /* Values 0 to -360 */
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80 return (grade);
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81 }
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82
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83 } // namespace tesseract