需要安装：
<span style="font-family:'Microsoft YaHei';font-size:14px;">
apt-get install autoconf
apt-get install automake
apt-get install libtool
</span>
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安装过程，参考以下：
安装依赖包
sudo apt-get install autoconf automake libtool
sudo apt-get install libpng12-dev
sudo apt-get install libjpeg62-dev
sudo apt-get install libtiff4-dev
sudo apt-get install zlib1g-dev
sudo apt-get install libicu-dev # (if you plan to make the training tools)
sudo apt-get install libpango1.0-dev # (if you plan to make the training tools)
sudo apt-get install libcairo2-dev # (if you plan to make the training tools)
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安装leptonica
tesseract依赖于leptonica,所以首先要下载安装leptonica
第一步:tar zxvf leptonica-1.73.tar.gz
第二步:cd leptonica-1.73
第三步:./configure --prefix=/usr/local/leptonica
第四步：make
第五步：make install
安装完成之后，配置环境变量,
gedit /etc/bash.bashrc
在文件末尾，添加环境变量的配置
PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/usr/local/leptonica/lib/pkgconfig
export PKG_CONFIG_PATH
CPLUS_INCLUDE_PATH=$CPLUS_INCLUDE_PATH:/usr/local/leptonica/
export CPLUS_INCLUDE_PATH
C_INCLUDE_PATH=$C_INCLUDE_PATH:/usr/local/leptonica/include/leptonica
export C_INCLUDE_PATH
LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/leptonica/lib
export LD_LIBRARY_PATH
LIBRARY_PATH=$LIBRARY_PATH:/usr/local/leptonica/lib
export LIBRARY_PATH
source /etc/bash.bashrc
gedit /etc/ld.so.conf
在文件末尾，添加
/usr/local/leptonica/lib
source /etc/ld.so.conf
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下载tesseract.
第一步：unzip tesseract
第二步：cd tesseract
第三步：./autogen.sh 如果不报错
第四步：LIBLEPT_HEADERSDIR=/usr/local/leptonica/include/leptonica ./configure --prefix=/usr/local/tesseract --with-extra-libraries=/usr/local/leptonica/lib 【注意：tesseract依赖于leptonica】
第五步：make
第六步：make install
第七步：make training
第八步: sudo make training-install 【注意：是training-install,不是 training install】
安装完后
添加环境变量PATH,否则，需要每次到安装路径运行。
第九步：gedit /etc/bash.bashrc,末尾添加
PATH=$PATH:/usr/local/tesseract/bin
export PATH
第十步：source /etc/bash.bashrc
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然后，打开终端
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作者：Captain_zp
来源：CSDN
原文：https://blog.csdn.net/zhangping1987/article/details/51151050
版权声明：本文为博主原创文章，转载请附上博文链接！
tesseract编译错误：fatal error: allheaders.h: No such file or directory
错误描述：
globaloc.cpp:25:33: fatal error: allheaders.h: No such file or directory #include "allheaders.h"
解决办法：
1、确认是否安装了leptonica
2、配置环境变量
vi /etc/profile 添加： CPLUS_INCLUDE_PATH=$CPLUS_INCLUDE_PATH:/usr/local/leptonica/include/leptonica export CPLUS_INCLUDE_PATH C_INCLUDE_PATH=$C_INCLUDE_PATH:/usr/local/leptonica/include/leptonica export C_INCLUDE_PATH source /etc/profile
如果仍然无法解决，参考以下文章重新安装：
http://www.cnblogs.com/rouge/p/7275391.html
