A Novel Construction of Correlation-Based Image CAPTCHA with Random Walk
Crossref DOI link: https://doi.org/10.1007/978-981-10-8971-8_31
Published Online: 2018-07-12
Published Print: 2019
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Wu, Qian-qian
Lang, Jian-jun
Wei, Song-jie
Ren, Mi-lin
Seidel, Erik
License valid from 2018-07-12