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
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
原文：https://www.cnblogs.com/jackduan/p/11890691.html