centos7 安装tesseract5

依赖

leptonica

wget http://www.leptonica.org/source/leptonica-1.82.0.tar.gz
tar zxf leptonica-1.82.0.tar.gz 
cd leptonica-1.82.0/
./configure && make && make install

yum install automake ca-certificates g++ git libtool  make 

安装

wget https://github.com/tesseract-ocr/tesseract/archive/refs/tags/5.1.0.zip
unzip tesseract-5.1.0.zip
cd tesseract-5.1.0
./configure 

报错：Your compiler does not have the necessary C++17 support!
处理：http://www.nanstar.top/p/wiki_1649403322861

报错：configure: error: Leptonica 1.74 or higher is required. Try to install libleptonica-dev package.
处理：
https://blog.csdn.net/xjmxym/article/details/79040514

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib
export LIBLEPT_HEADERSDIR=/usr/local/include
export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig
source /etc/profile
继续安装

./configure --with-extra-includes=/usr/local/include --with-extra-libraries=/usr/local/include
make
make install

测试

tesseract --version