安装-tesseract

$ yum -y install epel-release

$ yum -y install tesseract

$ tesseract --list-langs

$ yum-config-manager --add-repo https://download.opensuse.org/repositories/home:/Alexander_Pozdnyakov/CentOS_7/
$ sudo rpm --import https://build.opensuse.org/projects/home:Alexander_Pozdnyakov/public_key
$ yum update
$ yum install tesseract
$ yum install tesseract-langpack-deu

$ dnf config-manager --add-repo https://download.opensuse.org/repositories/home:/Alexander_Pozdnyakov/CentOS_8/
$ rpm --import https://build.opensuse.org/projects/home:Alexander_Pozdnyakov/public_key
$ dnf install tesseract
$ dnf install tesseract-langpack-deu