CAPTCHA Recognition Based on Markov field
Hongbin Wang · Computer Knowledge and Technology · 2014
CAPTCHA image is the major technique use by forums to tell humans and computers apart, so that its security is of importance in internet usage. To decrease uncertain recognition of CAPTCHA, we need to use the all info of the picture. Markov field[1,2]is a random model of using the whole info of the picture[3,4]. With using this theory,we can find out that CAPTCHA have a good Image segementation.