-
Notifications
You must be signed in to change notification settings - Fork 14
/
Copy patha00047_source.html
273 lines (271 loc) · 36.9 KB
/
a00047_source.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<meta name="generator" content="Doxygen 1.8.16"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<title>tesseract: /tesseract/include/tesseract/thresholder.h Source File</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<link href="navtree.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="resize.js"></script>
<script type="text/javascript" src="navtreedata.js"></script>
<script type="text/javascript" src="navtree.js"></script>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */
$(document).ready(initResizable);
/* @license-end */</script>
<link href="search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="search/searchdata.js"></script>
<script type="text/javascript" src="search/search.js"></script>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
<tbody>
<tr style="height: 56px;">
<td id="projectalign" style="padding-left: 0.5em;">
<div id="projectname">tesseract
 <span id="projectnumber">5.0.0-alpha-619-ge9db</span>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.8.16 -->
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */
var searchBox = new SearchBox("searchBox", "search",false,'Search');
/* @license-end */
</script>
<script type="text/javascript" src="menudata.js"></script>
<script type="text/javascript" src="menu.js"></script>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */
$(function() {
initMenu('',true,false,'search.php','Search');
$(document).ready(function() { init_search(); });
});
/* @license-end */</script>
<div id="main-nav"></div>
</div><!-- top -->
<div id="side-nav" class="ui-resizable side-nav-resizable">
<div id="nav-tree">
<div id="nav-tree-contents">
<div id="nav-sync" class="sync"></div>
</div>
</div>
<div id="splitbar" style="-moz-user-select:none;"
class="ui-resizable-handle">
</div>
</div>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */
$(document).ready(function(){initNavTree('a00047_source.html','');});
/* @license-end */
</script>
<div id="doc-content">
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
onmouseover="return searchBox.OnSearchSelectShow()"
onmouseout="return searchBox.OnSearchSelectHide()"
onkeydown="return searchBox.OnSearchSelectKey(event)">
</div>
<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<iframe src="javascript:void(0)" frameborder="0"
name="MSearchResults" id="MSearchResults">
</iframe>
</div>
<div class="header">
<div class="headertitle">
<div class="title">thresholder.h</div> </div>
</div><!--header-->
<div class="contents">
<a href="a00047.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// File: thresholder.h</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// Description: Base API for thresholding images in tesseract.</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// Author: Ray Smith</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">//</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// (C) Copyright 2008, Google Inc.</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">// Licensed under the Apache License, Version 2.0 (the "License");</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">// you may not use this file except in compliance with the License.</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// You may obtain a copy of the License at</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">// http://www.apache.org/licenses/LICENSE-2.0</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// Unless required by applicable law or agreed to in writing, software</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">// distributed under the License is distributed on an "AS IS" BASIS,</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">// See the License for the specific language governing permissions and</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment">// limitations under the License.</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment">//</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"></span> </div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#ifndef TESSERACT_CCMAIN_THRESHOLDER_H_</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#define TESSERACT_CCMAIN_THRESHOLDER_H_</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  </div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include "<a class="code" href="a00029.html">platform.h</a>"</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include "<a class="code" href="a00032.html">publictypes.h</a>"</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  </div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="keyword">struct </span>Pix;</div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  </div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="keyword">namespace </span><a class="code" href="a01818.html">tesseract</a> {</div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  </div>
<div class="line"><a name="l00035"></a><span class="lineno"><a class="line" href="a02550.html"> 35</a></span> <span class="keyword">class </span><a class="code" href="a00029.html#a86e51270628c53ce7e2c23b1c2b4490e">TESS_API</a> <a class="code" href="a02550.html">ImageThresholder</a> {</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <a class="code" href="a02550.html">ImageThresholder</a>();</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keyword">virtual</span> ~<a class="code" href="a02550.html">ImageThresholder</a>();</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  </div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> Clear();</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  </div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keywordtype">bool</span> IsEmpty() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  </div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordtype">void</span> SetImage(<span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>* imagedata, <span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height,</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keywordtype">int</span> bytes_per_pixel, <span class="keywordtype">int</span> bytes_per_line);</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  </div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keywordtype">void</span> SetRectangle(<span class="keywordtype">int</span> left, <span class="keywordtype">int</span> top, <span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height);</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  </div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> GetImageSizes(<span class="keywordtype">int</span>* left, <span class="keywordtype">int</span>* top, <span class="keywordtype">int</span>* width, <span class="keywordtype">int</span>* height,</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keywordtype">int</span>* imagewidth, <span class="keywordtype">int</span>* imageheight);</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  </div>
<div class="line"><a name="l00069"></a><span class="lineno"><a class="line" href="a02550.html#a5f22084ceecb9a9efbd7dccb36f05f90"> 69</a></span>  <span class="keywordtype">bool</span> <a class="code" href="a02550.html#a5f22084ceecb9a9efbd7dccb36f05f90">IsColor</a>()<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordflow">return</span> pix_channels_ >= 3;</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  }</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  </div>
<div class="line"><a name="l00074"></a><span class="lineno"><a class="line" href="a02550.html#af2a1a0395542b9ccec4ed6da3a928416"> 74</a></span>  <span class="keywordtype">bool</span> <a class="code" href="a02550.html#af2a1a0395542b9ccec4ed6da3a928416">IsBinary</a>()<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordflow">return</span> pix_channels_ == 0;</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  }</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  </div>
<div class="line"><a name="l00078"></a><span class="lineno"><a class="line" href="a02550.html#adce88ad081b8ab379cb286a0dd0e8845"> 78</a></span>  <span class="keywordtype">int</span> <a class="code" href="a02550.html#adce88ad081b8ab379cb286a0dd0e8845">GetScaleFactor</a>()<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keywordflow">return</span> scale_;</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  }</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  </div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="comment">// Set the resolution of the source image in pixels per inch.</span></div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="comment">// This should be called right after SetImage(), and will let us return</span></div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="comment">// appropriate font sizes for the text.</span></div>
<div class="line"><a name="l00085"></a><span class="lineno"><a class="line" href="a02550.html#af96fa2b6f4d1271640d5c8842f4fa9d6"> 85</a></span>  <span class="keywordtype">void</span> <a class="code" href="a02550.html#af96fa2b6f4d1271640d5c8842f4fa9d6">SetSourceYResolution</a>(<span class="keywordtype">int</span> ppi) {</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  yres_ = ppi;</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  estimated_res_ = ppi;</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  }</div>
<div class="line"><a name="l00089"></a><span class="lineno"><a class="line" href="a02550.html#a39bd6e786e42ec230090189c9deb3657"> 89</a></span>  <span class="keywordtype">int</span> <a class="code" href="a02550.html#a39bd6e786e42ec230090189c9deb3657">GetSourceYResolution</a>()<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keywordflow">return</span> yres_;</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  }</div>
<div class="line"><a name="l00092"></a><span class="lineno"><a class="line" href="a02550.html#a8e9f61a2ab3883e370cb91b870c3d4ec"> 92</a></span>  <span class="keywordtype">int</span> <a class="code" href="a02550.html#a8e9f61a2ab3883e370cb91b870c3d4ec">GetScaledYResolution</a>()<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keywordflow">return</span> scale_ * yres_;</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  }</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="comment">// Set the resolution of the source image in pixels per inch, as estimated</span></div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="comment">// by the thresholder from the text size found during thresholding.</span></div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="comment">// This value will be used to set internal size thresholds during recognition</span></div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="comment">// and will not influence the output "point size." The default value is</span></div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="comment">// the same as the source resolution. (yres_)</span></div>
<div class="line"><a name="l00100"></a><span class="lineno"><a class="line" href="a02550.html#a395de01694f9b1034d7349b736a4dac0"> 100</a></span>  <span class="keywordtype">void</span> <a class="code" href="a02550.html#a395de01694f9b1034d7349b736a4dac0">SetEstimatedResolution</a>(<span class="keywordtype">int</span> ppi) {</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  estimated_res_ = ppi;</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  }</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="comment">// Returns the estimated resolution, including any active scaling.</span></div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="comment">// This value will be used to set internal size thresholds during recognition.</span></div>
<div class="line"><a name="l00105"></a><span class="lineno"><a class="line" href="a02550.html#a02256722855a56bb2ee79238df990b3b"> 105</a></span>  <span class="keywordtype">int</span> <a class="code" href="a02550.html#a02256722855a56bb2ee79238df990b3b">GetScaledEstimatedResolution</a>()<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordflow">return</span> scale_ * estimated_res_;</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  }</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  </div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keywordtype">void</span> SetImage(<span class="keyword">const</span> Pix* pix);</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  </div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keyword">virtual</span> <span class="keywordtype">bool</span> ThresholdToPix(<a class="code" href="a01818.html#a338d4c8b5d497b5ec3e6e4269d8ac66a">PageSegMode</a> pageseg_mode, Pix** pix);</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  </div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="comment">// Gets a pix that contains an 8 bit threshold value at each pixel. The</span></div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="comment">// returned pix may be an integer reduction of the binary image such that</span></div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="comment">// the scale factor may be inferred from the ratio of the sizes, even down</span></div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="comment">// to the extreme of a 1x1 pixel thresholds image.</span></div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="comment">// Ideally the 8 bit threshold should be the exact threshold used to generate</span></div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="comment">// the binary image in ThresholdToPix, but this is not a hard constraint.</span></div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="comment">// Returns nullptr if the input is binary. PixDestroy after use.</span></div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keyword">virtual</span> Pix* GetPixRectThresholds();</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  </div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  Pix* GetPixRect();</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  </div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="comment">// Get a clone/copy of the source image rectangle, reduced to greyscale,</span></div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="comment">// and at the same resolution as the output binary.</span></div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="comment">// The returned Pix must be pixDestroyed.</span></div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="comment">// Provided to the classifier to extract features from the greyscale image.</span></div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="keyword">virtual</span> Pix* GetPixRectGrey();</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  </div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keyword">protected</span>:</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="comment">// ----------------------------------------------------------------------</span></div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="comment">// Utility functions that may be useful components for other thresholders.</span></div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  </div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> Init();</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  </div>
<div class="line"><a name="l00152"></a><span class="lineno"><a class="line" href="a02550.html#a5cf1c99da3146479f2822cfecc0e2d3a"> 152</a></span>  <span class="keywordtype">bool</span> <a class="code" href="a02550.html#a5cf1c99da3146479f2822cfecc0e2d3a">IsFullImage</a>()<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keywordflow">return</span> rect_left_ == 0 && rect_top_ == 0 && rect_width_ == image_width_ &&</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  rect_height_ == image_height_;</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  }</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  </div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="comment">// Otsu thresholds the rectangle, taking the rectangle from *this.</span></div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keywordtype">void</span> OtsuThresholdRectToPix(Pix* src_pix, Pix** out_pix) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  </div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="comment">// arrays and also the bytes per pixel in src_pix.</span></div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordtype">void</span> ThresholdRectToPix(Pix* src_pix, <span class="keywordtype">int</span> num_channels, <span class="keyword">const</span> <span class="keywordtype">int</span>* thresholds,</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="keyword">const</span> <span class="keywordtype">int</span>* hi_values, Pix** pix) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  </div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keyword">protected</span>:</div>
<div class="line"><a name="l00170"></a><span class="lineno"><a class="line" href="a02550.html#a8ffaca2b9b8f5c01df4959d043564e44"> 170</a></span>  Pix* <a class="code" href="a02550.html#a8ffaca2b9b8f5c01df4959d043564e44">pix_</a>;</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  </div>
<div class="line"><a name="l00172"></a><span class="lineno"><a class="line" href="a02550.html#ad19482689e862049210ed12506e3e430"> 172</a></span>  <span class="keywordtype">int</span> <a class="code" href="a02550.html#ad19482689e862049210ed12506e3e430">image_width_</a>; </div>
<div class="line"><a name="l00173"></a><span class="lineno"><a class="line" href="a02550.html#af850057e6640359179bea0835254cc12"> 173</a></span>  <span class="keywordtype">int</span> <a class="code" href="a02550.html#af850057e6640359179bea0835254cc12">image_height_</a>; </div>
<div class="line"><a name="l00174"></a><span class="lineno"><a class="line" href="a02550.html#ac1e0c609f5468520746233102f4e654c"> 174</a></span>  <span class="keywordtype">int</span> <a class="code" href="a02550.html#ac1e0c609f5468520746233102f4e654c">pix_channels_</a>; </div>
<div class="line"><a name="l00175"></a><span class="lineno"><a class="line" href="a02550.html#a17a1faa196e7b195dc5ff5eec60e3814"> 175</a></span>  <span class="keywordtype">int</span> <a class="code" href="a02550.html#a17a1faa196e7b195dc5ff5eec60e3814">pix_wpl_</a>; </div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="comment">// Limits of image rectangle to be processed.</span></div>
<div class="line"><a name="l00177"></a><span class="lineno"><a class="line" href="a02550.html#abf0aec155d23b51c245c4163582cd82c"> 177</a></span>  <span class="keywordtype">int</span> <a class="code" href="a02550.html#abf0aec155d23b51c245c4163582cd82c">scale_</a>; </div>
<div class="line"><a name="l00178"></a><span class="lineno"><a class="line" href="a02550.html#ac80aad234efc5a4102805a05d5825aa4"> 178</a></span>  <span class="keywordtype">int</span> <a class="code" href="a02550.html#ac80aad234efc5a4102805a05d5825aa4">yres_</a>; </div>
<div class="line"><a name="l00179"></a><span class="lineno"><a class="line" href="a02550.html#a7f6c21281f37d495ed2272e931e990ac"> 179</a></span>  <span class="keywordtype">int</span> <a class="code" href="a02550.html#a7f6c21281f37d495ed2272e931e990ac">estimated_res_</a>; </div>
<div class="line"><a name="l00180"></a><span class="lineno"><a class="line" href="a02550.html#abf7d4771ff09f7a3e6e45f20ed3bd531"> 180</a></span>  <span class="keywordtype">int</span> <a class="code" href="a02550.html#abf7d4771ff09f7a3e6e45f20ed3bd531">rect_left_</a>;</div>
<div class="line"><a name="l00181"></a><span class="lineno"><a class="line" href="a02550.html#a46518f2527c1198bfc524b93aad56e72"> 181</a></span>  <span class="keywordtype">int</span> <a class="code" href="a02550.html#a46518f2527c1198bfc524b93aad56e72">rect_top_</a>;</div>
<div class="line"><a name="l00182"></a><span class="lineno"><a class="line" href="a02550.html#a450cd3577eebea0e372b059b6d4cac7e"> 182</a></span>  <span class="keywordtype">int</span> <a class="code" href="a02550.html#a450cd3577eebea0e372b059b6d4cac7e">rect_width_</a>;</div>
<div class="line"><a name="l00183"></a><span class="lineno"><a class="line" href="a02550.html#a8455c5c0f05f987a19b9cd1a250f6b1d"> 183</a></span>  <span class="keywordtype">int</span> <a class="code" href="a02550.html#a8455c5c0f05f987a19b9cd1a250f6b1d">rect_height_</a>;</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span> };</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  </div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span> } <span class="comment">// namespace tesseract.</span></div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  </div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span> <span class="preprocessor">#endif // TESSERACT_CCMAIN_THRESHOLDER_H_</span></div>
</div><!-- fragment --></div><!-- contents -->
</div><!-- doc-content -->
<div class="ttc" id="aa02550_html_a17a1faa196e7b195dc5ff5eec60e3814"><div class="ttname"><a href="a02550.html#a17a1faa196e7b195dc5ff5eec60e3814">tesseract::ImageThresholder::pix_wpl_</a></div><div class="ttdeci">int pix_wpl_</div><div class="ttdoc">Words per line of pix_.</div><div class="ttdef"><b>Definition:</b> <a href="a00047_source.html#l00175">thresholder.h:175</a></div></div>
<div class="ttc" id="aa02550_html_abf7d4771ff09f7a3e6e45f20ed3bd531"><div class="ttname"><a href="a02550.html#abf7d4771ff09f7a3e6e45f20ed3bd531">tesseract::ImageThresholder::rect_left_</a></div><div class="ttdeci">int rect_left_</div><div class="ttdef"><b>Definition:</b> <a href="a00047_source.html#l00180">thresholder.h:180</a></div></div>
<div class="ttc" id="aa02550_html_a8455c5c0f05f987a19b9cd1a250f6b1d"><div class="ttname"><a href="a02550.html#a8455c5c0f05f987a19b9cd1a250f6b1d">tesseract::ImageThresholder::rect_height_</a></div><div class="ttdeci">int rect_height_</div><div class="ttdef"><b>Definition:</b> <a href="a00047_source.html#l00183">thresholder.h:183</a></div></div>
<div class="ttc" id="aa02550_html_a5cf1c99da3146479f2822cfecc0e2d3a"><div class="ttname"><a href="a02550.html#a5cf1c99da3146479f2822cfecc0e2d3a">tesseract::ImageThresholder::IsFullImage</a></div><div class="ttdeci">bool IsFullImage() const</div><div class="ttdoc">Return true if we are processing the full image.</div><div class="ttdef"><b>Definition:</b> <a href="a00047_source.html#l00152">thresholder.h:152</a></div></div>
<div class="ttc" id="aa02550_html_af2a1a0395542b9ccec4ed6da3a928416"><div class="ttname"><a href="a02550.html#af2a1a0395542b9ccec4ed6da3a928416">tesseract::ImageThresholder::IsBinary</a></div><div class="ttdeci">bool IsBinary() const</div><div class="ttdoc">Returns true if the source image is binary.</div><div class="ttdef"><b>Definition:</b> <a href="a00047_source.html#l00074">thresholder.h:74</a></div></div>
<div class="ttc" id="aa02550_html_af850057e6640359179bea0835254cc12"><div class="ttname"><a href="a02550.html#af850057e6640359179bea0835254cc12">tesseract::ImageThresholder::image_height_</a></div><div class="ttdeci">int image_height_</div><div class="ttdoc">Height of source pix_.</div><div class="ttdef"><b>Definition:</b> <a href="a00047_source.html#l00173">thresholder.h:173</a></div></div>
<div class="ttc" id="aa02550_html_ad19482689e862049210ed12506e3e430"><div class="ttname"><a href="a02550.html#ad19482689e862049210ed12506e3e430">tesseract::ImageThresholder::image_width_</a></div><div class="ttdeci">int image_width_</div><div class="ttdoc">Width of source pix_.</div><div class="ttdef"><b>Definition:</b> <a href="a00047_source.html#l00172">thresholder.h:172</a></div></div>
<div class="ttc" id="aa00029_html"><div class="ttname"><a href="a00029.html">platform.h</a></div></div>
<div class="ttc" id="aa02550_html_af96fa2b6f4d1271640d5c8842f4fa9d6"><div class="ttname"><a href="a02550.html#af96fa2b6f4d1271640d5c8842f4fa9d6">tesseract::ImageThresholder::SetSourceYResolution</a></div><div class="ttdeci">void SetSourceYResolution(int ppi)</div><div class="ttdef"><b>Definition:</b> <a href="a00047_source.html#l00085">thresholder.h:85</a></div></div>
<div class="ttc" id="aa02550_html_a7f6c21281f37d495ed2272e931e990ac"><div class="ttname"><a href="a02550.html#a7f6c21281f37d495ed2272e931e990ac">tesseract::ImageThresholder::estimated_res_</a></div><div class="ttdeci">int estimated_res_</div><div class="ttdoc">Resolution estimate from text size.</div><div class="ttdef"><b>Definition:</b> <a href="a00047_source.html#l00179">thresholder.h:179</a></div></div>
<div class="ttc" id="aa02550_html_a8ffaca2b9b8f5c01df4959d043564e44"><div class="ttname"><a href="a02550.html#a8ffaca2b9b8f5c01df4959d043564e44">tesseract::ImageThresholder::pix_</a></div><div class="ttdeci">Pix * pix_</div><div class="ttdef"><b>Definition:</b> <a href="a00047_source.html#l00170">thresholder.h:170</a></div></div>
<div class="ttc" id="aa02550_html_a39bd6e786e42ec230090189c9deb3657"><div class="ttname"><a href="a02550.html#a39bd6e786e42ec230090189c9deb3657">tesseract::ImageThresholder::GetSourceYResolution</a></div><div class="ttdeci">int GetSourceYResolution() const</div><div class="ttdef"><b>Definition:</b> <a href="a00047_source.html#l00089">thresholder.h:89</a></div></div>
<div class="ttc" id="aa02550_html_a46518f2527c1198bfc524b93aad56e72"><div class="ttname"><a href="a02550.html#a46518f2527c1198bfc524b93aad56e72">tesseract::ImageThresholder::rect_top_</a></div><div class="ttdeci">int rect_top_</div><div class="ttdef"><b>Definition:</b> <a href="a00047_source.html#l00181">thresholder.h:181</a></div></div>
<div class="ttc" id="aa02550_html_a395de01694f9b1034d7349b736a4dac0"><div class="ttname"><a href="a02550.html#a395de01694f9b1034d7349b736a4dac0">tesseract::ImageThresholder::SetEstimatedResolution</a></div><div class="ttdeci">void SetEstimatedResolution(int ppi)</div><div class="ttdef"><b>Definition:</b> <a href="a00047_source.html#l00100">thresholder.h:100</a></div></div>
<div class="ttc" id="aa02550_html_ac1e0c609f5468520746233102f4e654c"><div class="ttname"><a href="a02550.html#ac1e0c609f5468520746233102f4e654c">tesseract::ImageThresholder::pix_channels_</a></div><div class="ttdeci">int pix_channels_</div><div class="ttdoc">Number of 8-bit channels in pix_.</div><div class="ttdef"><b>Definition:</b> <a href="a00047_source.html#l00174">thresholder.h:174</a></div></div>
<div class="ttc" id="aa00032_html"><div class="ttname"><a href="a00032.html">publictypes.h</a></div></div>
<div class="ttc" id="aa02550_html_ac80aad234efc5a4102805a05d5825aa4"><div class="ttname"><a href="a02550.html#ac80aad234efc5a4102805a05d5825aa4">tesseract::ImageThresholder::yres_</a></div><div class="ttdeci">int yres_</div><div class="ttdoc">y pixels/inch in source image.</div><div class="ttdef"><b>Definition:</b> <a href="a00047_source.html#l00178">thresholder.h:178</a></div></div>
<div class="ttc" id="aa01818_html"><div class="ttname"><a href="a01818.html">tesseract</a></div><div class="ttdef"><b>Definition:</b> <a href="a00005_source.html#l00065">baseapi.h:65</a></div></div>
<div class="ttc" id="aa02550_html_a02256722855a56bb2ee79238df990b3b"><div class="ttname"><a href="a02550.html#a02256722855a56bb2ee79238df990b3b">tesseract::ImageThresholder::GetScaledEstimatedResolution</a></div><div class="ttdeci">int GetScaledEstimatedResolution() const</div><div class="ttdef"><b>Definition:</b> <a href="a00047_source.html#l00105">thresholder.h:105</a></div></div>
<div class="ttc" id="aa01818_html_a338d4c8b5d497b5ec3e6e4269d8ac66a"><div class="ttname"><a href="a01818.html#a338d4c8b5d497b5ec3e6e4269d8ac66a">tesseract::PageSegMode</a></div><div class="ttdeci">PageSegMode</div><div class="ttdef"><b>Definition:</b> <a href="a00032_source.html#l00159">publictypes.h:159</a></div></div>
<div class="ttc" id="aa02550_html_adce88ad081b8ab379cb286a0dd0e8845"><div class="ttname"><a href="a02550.html#adce88ad081b8ab379cb286a0dd0e8845">tesseract::ImageThresholder::GetScaleFactor</a></div><div class="ttdeci">int GetScaleFactor() const</div><div class="ttdef"><b>Definition:</b> <a href="a00047_source.html#l00078">thresholder.h:78</a></div></div>
<div class="ttc" id="aa00029_html_a86e51270628c53ce7e2c23b1c2b4490e"><div class="ttname"><a href="a00029.html#a86e51270628c53ce7e2c23b1c2b4490e">TESS_API</a></div><div class="ttdeci">#define TESS_API</div><div class="ttdef"><b>Definition:</b> <a href="a00029_source.html#l00054">platform.h:54</a></div></div>
<div class="ttc" id="aa02550_html_abf0aec155d23b51c245c4163582cd82c"><div class="ttname"><a href="a02550.html#abf0aec155d23b51c245c4163582cd82c">tesseract::ImageThresholder::scale_</a></div><div class="ttdeci">int scale_</div><div class="ttdoc">Scale factor from original image.</div><div class="ttdef"><b>Definition:</b> <a href="a00047_source.html#l00177">thresholder.h:177</a></div></div>
<div class="ttc" id="aa02550_html"><div class="ttname"><a href="a02550.html">tesseract::ImageThresholder</a></div><div class="ttdef"><b>Definition:</b> <a href="a00047_source.html#l00035">thresholder.h:35</a></div></div>
<div class="ttc" id="aa02550_html_a8e9f61a2ab3883e370cb91b870c3d4ec"><div class="ttname"><a href="a02550.html#a8e9f61a2ab3883e370cb91b870c3d4ec">tesseract::ImageThresholder::GetScaledYResolution</a></div><div class="ttdeci">int GetScaledYResolution() const</div><div class="ttdef"><b>Definition:</b> <a href="a00047_source.html#l00092">thresholder.h:92</a></div></div>
<div class="ttc" id="aa02550_html_a5f22084ceecb9a9efbd7dccb36f05f90"><div class="ttname"><a href="a02550.html#a5f22084ceecb9a9efbd7dccb36f05f90">tesseract::ImageThresholder::IsColor</a></div><div class="ttdeci">bool IsColor() const</div><div class="ttdoc">Return true if the source image is color.</div><div class="ttdef"><b>Definition:</b> <a href="a00047_source.html#l00069">thresholder.h:69</a></div></div>
<div class="ttc" id="aa02550_html_a450cd3577eebea0e372b059b6d4cac7e"><div class="ttname"><a href="a02550.html#a450cd3577eebea0e372b059b6d4cac7e">tesseract::ImageThresholder::rect_width_</a></div><div class="ttdeci">int rect_width_</div><div class="ttdef"><b>Definition:</b> <a href="a00047_source.html#l00182">thresholder.h:182</a></div></div>
<!-- start footer part -->
<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
<ul>
<li class="navelem"><a class="el" href="dir_d44c64559bbebec7f509842c48db8b23.html">include</a></li><li class="navelem"><a class="el" href="dir_00200a555532e7ec3afbcddd6091e65a.html">tesseract</a></li><li class="navelem"><a class="el" href="a00047.html">thresholder.h</a></li>
<li class="footer">Generated on Thu Jan 30 2020 14:22:19 for tesseract by
<a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.16 </li>
</ul>
</div>
</body>
</html>