Security Enhancement in Captcha Recognition using Animated GIF Images
T H Manoj, R. Basavaraj, Jannatun Tuba Jyoti · International Journal of Computer Applications · 2016
CAPTCHAs is Turing test are used to distinguish whether a user is a human or a computer.Till today huge number of CAPTCHA schema have been suggest or put forth and applied on miscellaneous websites to secure online services (SOS) from automated decaptcha programs.So development of a good CAPTCHA scheme that is both secure by automated recognition and human usable is an important research problem.The proposed paper that addresses the above problem by new animated GIF images.This paper present the novel method of designing the CAPTCHA using animated GIF image and in addition to that it analyze time complexity and the security issues.