details refer to : http://www.jianshu.com/p/25655870b458
环境配置 Python2.7 keras1.. pip install captcha
pip install git+https://github.com/fengxiaosai/recurrentshop.git pip install git+https://github.com/fengxiaosai/seq2seq.git 或下载https://github.com/fengxiaosai/recurrentshop ， https://github.com/fengxiaosai/seq2seq 后，分别解压，执行python setup.py install 安装上述两个库
步骤： 1.在../data/images下创建 four_digit、five_digit、six_digit、seven_digit文件夹 2.运行generateData.py，生成图片 3.运行preprocess.py，生成标签 4.运行train.py