tesseract 4.1.1
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gradechop.cpp
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1/* -*-C-*-
2 ********************************************************************************
3 *
4 * File: gradechop.cpp (Formerly gradechop.c)
5 * Description:
6 * Author: Mark Seaman, OCR Technology
7 *
8 * (c) Copyright 1987, Hewlett-Packard Company.
9 ** Licensed under the Apache License, Version 2.0 (the "License");
10 ** you may not use this file except in compliance with the License.
11 ** You may obtain a copy of the License at
12 ** http://www.apache.org/licenses/LICENSE-2.0
13 ** Unless required by applicable law or agreed to in writing, software
14 ** distributed under the License is distributed on an "AS IS" BASIS,
15 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 ** See the License for the specific language governing permissions and
17 ** limitations under the License.
18 *
19 *********************************************************************************/
20/*----------------------------------------------------------------------
21 I n c l u d e s
22----------------------------------------------------------------------*/
23
24#include "wordrec.h"
25#include "chop.h"
26#include <algorithm>
27#include <cmath>
28
29/*----------------------------------------------------------------------
30 M a c r o s
31----------------------------------------------------------------------*/
32
33namespace tesseract {
34
35/*----------------------------------------------------------------------
36 F u n c t i o n s
37----------------------------------------------------------------------*/
38
39/**********************************************************************
40 * grade_split_length
41 *
42 * Return a grade for the length of this split.
43 * 0 = "perfect"
44 * 100 = "no way jay"
45 **********************************************************************/
47 PRIORITY grade;
48 float split_length;
49
50 split_length =
52
53 if (split_length <= 0)
54 grade = 0;
55 else
56 grade = sqrt (split_length) * chop_split_dist_knob;
57
58 return (std::max(0.0f, grade));
59}
60
61
62/**********************************************************************
63 * grade_sharpness
64 *
65 * Return a grade for the sharpness of this split.
66 * 0 = "perfect"
67 * 100 = "no way jay"
68 **********************************************************************/
70 PRIORITY grade;
71
72 grade = point_priority (split->point1) + point_priority (split->point2);
73
74 if (grade < -360.0)
75 grade = 0;
76 else
77 grade += 360.0;
78
79 grade *= chop_sharpness_knob; /* Values 0 to -360 */
80
81 return (grade);
82}
83
84
85} // namespace tesseract
float PRIORITY
Definition: seam.h:36
int WeightedDistance(const EDGEPT &other, int x_factor) const
Definition: blobs.h:122
Definition: split.h:37
EDGEPT * point1
Definition: split.h:103
EDGEPT * point2
Definition: split.h:104
double chop_sharpness_knob
Definition: wordrec.h:219
PRIORITY grade_sharpness(SPLIT *split)
Definition: gradechop.cpp:69
PRIORITY grade_split_length(SPLIT *split)
Definition: gradechop.cpp:46
PRIORITY point_priority(EDGEPT *point)
Definition: chop.cpp:66
double chop_split_dist_knob
Definition: wordrec.h:214