python验证码识别1:灰度处理、二值化、降噪、tesserocr识别:http://www.hi-roy.com/2017/09/19/Python验证码识别/
python验证码识别2:投影法、连通域法分割图片:http://www.hi-roy.com/2017/09/20/Python验证码识别2/
python验证码识别3:滑动验证码:http://www.hi-roy.com/2017/09/21/Python验证码识别3/
python验证码识别4:滴水算法分割图片:https://www.hi-roy.com/2017/09/22/Python验证码识别4/
python验证码识别5:滴水算法补充:https://www.hi-roy.com/2017/09/26/Python验证码识别5/
Github: https://github.com/lan2720/fuck-captcha/blob/master/fuck_sjtu_captcha.py