centos7下tesserocr安装使用及python识别验证码

﹏ヽ暗。殇╰゛Y 2022-03-16 04:18 545阅读 0赞

Centos7版本

\# cat /etc/redhat-release  
CentOS Linux release 7.6.1810 (Core)

\# yum install -y automake autoconf libtool gcc gcc-c++ libpng-devel libjpeg-devel libtiff-devel

1、编译安装leptonica

需要先安装leptonica，下载地址 [http://www.leptonica.org/download.html][http_www.leptonica.org_download.html]

\# tar -zxvf leptonica-1.77.0.tar.gz  
\# cd leptonica-1.77.0  
\# ./configure   
\# make && make install  
\# vi /etc/profile  在文件最后添加如下三行  
export LD\_LIBRARY\_PATH=$LD\_LIBRARY\_PAYT:/usr/local/lib  
export LIBLEPT\_HEADERSDIR=/usr/local/include  
export PKG\_CONFIG\_PATH=/usr/local/lib/pkgconfig

\# source /etc/profile

2、编译安装tesseract

tesseract下载地址 [https://github.com/tesseract-ocr/tesseract/releases][https_github.com_tesseract-ocr_tesseract_releases]

\# tar -zxvf tesseract-4.0.0.tar.gz  
\# cd tesseract-4.0.0  
\# ./autogen.sh  
\# ./configure --with-extra-includes=/usr/local/include --with-extra-libraries=/usr/local/include  
这时就不会再提示 leptonica 版本的问题了。再进行  
\# make && make install

3、安装tessdata多语言

tesseract的多语言项目是tessdata，下载地址 [https://github.com/tesseract-ocr/tessdata/releases][https_github.com_tesseract-ocr_tessdata_releases]

\# mkdir -p /usr/local/share/tessdata/lang  
\# vi /etc/profile  在文件最后添加如下2行  
export TESSDATA\_PREFIX=/usr/local/share/tessdata/lang  
export LC\_ALL=C

\# source /etc/profile  
\# tar -zxvf tessdata-4.0.0.tar.gz  
\# mv tessdata-4.0.0/\* /usr/local/share/tessdata/lang  
\# tesseract --list-langs

4、识别验证码

\# yum install -y wget  
\# wget https://raw.githubusercontent.com/Python3WebSpider/TestTess/master/image.png  
\# tesseract image.png image -l chi\_sim+eng   这条命令是使用中文和英文语言识别image.png中的文本  
\# vi image.txt   查看内容

5、使用python接口识别

\# pip install tesserocr pillow  很慢，耐心等待  
\# vi test.py    输入如下内容  
import tesserocr

from PIL import Image  
image = Image.open('image.png')  
print(tesserocr.image\_to\_text(image))    \#或者tesserocr.image\_to\_text(image, lang='chi\_sim')

\# python test.py  即可识别图片中的文本

如果需要识别带中文的内容，代码需要调整：

\# encoding=utf8  
\# -\*- coding: utf8 -\*-  
import tesserocr

from PIL import Image

image = Image.open('h1.jpg')

msg = tesserocr.image\_to\_text(image, lang='chi\_sim')

with open('hello.txt', 'w', encoding='utf-8') as file\_object:  
    file\_object.write(msg)

[http_www.leptonica.org_download.html]: http://www.leptonica.org/download.html
[https_github.com_tesseract-ocr_tesseract_releases]: https://github.com/tesseract-ocr/tesseract/releases
[https_github.com_tesseract-ocr_tessdata_releases]: https://github.com/tesseract-ocr/tessdata/releases