centos安装Tesseract

yum安装（推荐）

 yum search tesseract
 yum install tesseract.x86_64 -y 
 pip3 install pytesseract
 pip3 install Pillow
 yum install -y libpng12-devel.x86_64 - libtiff-devel.x86_64  zlib-devel.x86_64 
 

　　

#使用测试

 图片

[root@localhostreuest]#tesseract  1.png  out
Tesseract Open Source OCR Engine v3.04.00 with Leptonica
[root@localhostreuest]#cat out.txt 
2765

　　

编译安装

#下载包
wget https://github.com/tesseract-ocr/tesseract/archive/4.0.0.tar.gz
wget http://www.leptonica.org/source/leptonica-1.77.0.tar.gz


#解压安装leptoinica
tar xf leptonica-1.77.0.tar.gz
cd leptonica-1.77.0
 ./configure
 make && make install
 yum install automake libtool -y
 
 #安装tesseract
 cd tesseract-4.0.0/
./autogen.sh
./configure
./configure --with-extra-includes=/usr/local/include --with-extra-libraries=/usr/local/include

#pip3安装 Pillow pytesseract