tessract-ocr文本识别系统网页搭建
下面是我搭的网站：
在安装后tesstact-ocr后，我找到了一个利用php调用ocr接口的方法，在github上有这样一个项目：
https://github.com/thiagoalessio/tesseract-ocr-for-php
这个就是用php封装了一下命令行的ocr接口
我利用composer把源码下载下来，然后编写了一个简单的ocr识别网站
利用一下命令进行下载：
composer requir thiagoalessio/tesseract_ocrTesseract OCR for PHP
A wrapper to work with Tesseract OCR inside PHP.
Installation
First of all, make sure you have Tesseract OCR installed. (v3.03 or greater)
As a composer dependency
{
"require": {
"thiagoalessio/tesseract_ocr": "1.0.0-RC"
}
}
Usage
Basic usage
Given the following image (text.png):
And the following code:
<?php
echo (new TesseractOCR('text.png'))
->run();
The output would be:
The quick brown fox
jumps over the lazy
dog.
Other languages
Given the following image (german.png):
And the following code:
<?php
echo (new TesseractOCR('german.png'))
->run();
The output would be:
griifien
Which is not good, but defining a language:
<?php
echo (new TesseractOCR('german.png'))
->lang('deu')
->run();
Will produce:
grüßen
Multiple languages
Given the following image (multi-languages.png):
And the following code ....
<?php
echo (new TesseractOCR('multi-languages.png'))
->lang('eng', 'jpn', 'por')
->run();
The output would be:
I eat 寿司 de maçã
Inducing recognition
Given the following image (8055.png):
And the following code ....
<?php
echo (new TesseractOCR('8055.png'))
->whitelist(range('A', 'Z'))
->run();
The output would be:
BOSS
API
->executable('/path/to/tesseract')
Define a custom location of the tesseract executable, if by any reason it is not present in the $PATH.
->tessdataDir('/path')
Specify a custom location for the tessdata directory.
->userWords('/path/to/user-words.txt')
Specify the location of user words file.
This is a plain text file containing a list of words that you want to be considered as a normal dictionary words by tesseract.
Useful when dealing with contents that contain technical terminology, jargon, etc.
Example of a user words file:
$ cat /path/to/user-words.txt
foo
bar
->userPatterns('/path/to/user-patterns.txt')
Specify the location of user patterns file.
If the contents you are dealing with have known patterns, this option can help a lot tesseract's recognition accuracy.
Example of a user patterns file:
$ cat /path/to/user-patterns.txt'
1-\d\d\d-GOOG-441
www.\n\\\*.com
->lang('lang1', 'lang2', 'lang3')
Define one or more languages to be used during the recognition. A complete list of available languages can be found athttps://github.com/tesseract-ocr/tesseract/blob/master/doc/tesseract.1.asc#languages
Tip from @daijiale: Use the combination ->lang('chi_sim', 'chi_tra') for proper recognition of Chinese.
->psm(6)
Specify the Page Segmentation Mode, which instructs tesseract how to interpret the given image.
Possible psm values are:
0 = Orientation and script detection (OSD) only.
1 = Automatic page segmentation with OSD.
2 = Automatic page segmentation, but no OSD, or OCR.
3 = Fully automatic page segmentation, but no OSD. (Default)
4 = Assume a single column of text of variable sizes.
5 = Assume a single uniform block of vertically aligned text.
6 = Assume a single uniform block of text.
7 = Treat the image as a single text line.
8 = Treat the image as a single word.
9 = Treat the image as a single word in a circle.
10 = Treat the image as a single character.
->config('configvar', 'value')
Tesseract offers incredible control to the user through its 660 configuration vars.
You can see the complete list by running the following command:
$ tesseract --print-parameters
Tesseract parameters:
... long list with all parameters ...
->whitelist(range('a', 'z'), range(0, 9), '-_@')
This is a shortcut for ->config('tessedit_char_whitelist', 'abcdef....').
Where to get help
- #tesseract-ocr-for-php on freenode IRC
License
下面就是编一个php网页了：
我用了bootstrap,和表单进行文件上传，
下面直接上代码：
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<title>OCR文本识别系统</title>
<!-- 新 Bootstrap 核心 CSS 文件 -->
<link rel="stylesheet" href="http://cdn.bootcss.com/bootstrap/3.3.0/css/bootstrap.min.css">
<!-- 可选的Bootstrap主题文件（一般不用引入） -->
<link rel="stylesheet" href="http://cdn.bootcss.com/bootstrap/3.3.0/css/bootstrap-theme.min.css">
<!-- jQuery文件。务必在bootstrap.min.js 之前引入 -->
<script src="http://cdn.bootcss.com/jquery/1.11.1/jquery.min.js"></script>
<!-- 最新的 Bootstrap 核心 JavaScript 文件 -->
<script src="http://cdn.bootcss.com/bootstrap/3.3.0/js/bootstrap.min.js"></script>
<style type="text/css">
.form{
position:absolute;
left:600px;
top:100px
}
.image{
position:absolute;
left:10px;
top:60px
}
.retext{
position:absolute;
top:370px
}
.body{
background-image: url("./img/background.jpg");
}
.text{
text-align: center;
}
</style>
</head>
<body class = "body">
<?php// $file_path = './img/text.png'?>
<nav class="navbar navbar-inverse" role="navigation">
<div class="container-fluid">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="index.php">OCR文本识别系统</a>
</div>
<!-- Collect the nav links, forms, and other content for toggling -->
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<!--<ul class="nav navbar-nav">
<li class="active"><a href="#">系统介绍</a></li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown <span class="caret"></span></a>
<ul class="dropdown-menu" role="menu">
<li><a href="#">Action</a></li>
<li><a href="#">Another action</a></li>
<li><a href="#">Something else here</a></li>
<li class="divider"></li>
<li><a href="#">Separated link</a></li>
<li class="divider"></li>
<li><a href="#">One more separated link</a></li>
</ul>
</li>
</ul>
-->
<!--<form class="navbar-form navbar-left" role="search">
<div class="form-group">
<input type="text" class="form-control" placeholder="Search">
</div>
<button type="submit" class="btn btn-default">Submit</button>
</form>
-->
<ul class="nav navbar-nav navbar-right">
<li><a href="#">系统介绍</a></li>
<li><a href="#">实验室介绍</a></li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">参考资源 <span class="caret"></span></a>
<ul class="dropdown-menu" role="menu">
<li><a href="https://github.com/thiagoalessio/tesseract-ocr-for-php">tesseract-ocr-for-php</a></li>
<li><a href="http://getbootstrap.com/">Bootstrap</a></li>
<li><a href="http://www.w3school.com.cn/">W3School</a></li>
<li class="divider"></li>
<li><a href="https://github.com/tesseract-ocr/tesseract">tesseract-ocr</a></li>
</ul>
</li>
</ul>
</div><!-- /.navbar-collapse -->
</div><!-- /.container-fluid -->
</nav>
<div class = "form">
<form action="" method="post" enctype="multipart/form-data">
<label for="file">上传图片:</label>
<input type="file" name="file" id="file" />
<br />
<p>请选择语言类型(可多选)：</p>
<div class="checkbox">
<label>
<input type="checkbox" value="English" name ="mrbook[]" >
English
</label>
</div>
<div class="checkbox">
<label>
<input type="checkbox" value="中文" name ="mrbook[]">
中文
</label>
</div>
<div class="checkbox">
<label>
<input type="checkbox" value="Deutsch" name ="mrbook[]">
Deutsch
</label>
</div>
<div class="checkbox">
<label>
<input type="checkbox" value="한국의" name ="mrbook[]">
한국의
</label>
</div>
<input type="submit" name="submit" class="btn btn-success" value="Submit" />
</form>
</div>
<?php
if(!empty($_FILES['file']))
{
$file_path = sprintf("./upload/%s",$_FILES['file']['name']);
if(!move_uploaded_file($_FILES["file"]["tmp_name"],
$file_path))
echo $_FILES["file"]["error"];
for($i=0 ;$i<count($_POST[mrbook]);$i++)
if(strcmp($_POST[mrbook][$i],"English") == 0)
$lan_type = sprintf("%s %s",$lan_type,"eng");
else if(strcmp($_POST[mrbook][$i],"中文") == 0)
$lan_type = sprintf("%s %s",$lan_type,"chi_sim");
}
require '../vendor/autoload.php';
$ocr = new \TesseractOCR($file_path);
$string = $ocr ->lang($lan_type) ->run();
?>
<div class = "image">
<p>
<img src=<?php if(!empty($file_path)) echo $file_path; else echo './img/180.jpg';?> width="440" height="300" />
</p>
</div>
<div class = "retext" style ="width :100%">
<p>识别结果：</p>
<textarea class="form-control" rows="10"><?php echo $string; ?></textarea>
</div>
<!--
<p>
<img src="./img/text.png" width="128" height="128" />
</p>
-->
<?php
/*require '../vendor/autoload.php';
$ocr = new \TesseractOCR('./img/text.png');
$string = $ocr->run();
echo $string;
*/
?>
</body>
</html>
写的不太好，请指出不足^.^!