tesseract 安装

https://github.com/tesseract-ocr/tesseract/wiki

windows安装简单  https://blog.csdn.net/showgea/article/details/82656515

linux安装   ubuntu18 apt默认安装4.0              

1. sudo apt-get update

2. sudo apt install tesseract-ocr-chi-sim

要安装5.0,要先加PPA

sudo add-apt-repository ppa:alex-p/tesseract-ocr-devel
sudo apt-get update
sudo apt install tesseract-ocr-chi-sim