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Security Enhancement in Captcha Recognition using Animated GIF Images

International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Year of Publication: 2016
Manoj T. H., Basavaraj R., Jyoti

Manoj T H., Basavaraj R. and Jyoti. Security Enhancement in Captcha Recognition using Animated GIF Images. International Journal of Computer Applications 156(7):43-46, December 2016. BibTeX

	author = {Manoj T. H. and Basavaraj R. and Jyoti},
	title = {Security Enhancement in Captcha Recognition using Animated GIF Images},
	journal = {International Journal of Computer Applications},
	issue_date = {December 2016},
	volume = {156},
	number = {7},
	month = {Dec},
	year = {2016},
	issn = {0975-8887},
	pages = {43-46},
	numpages = {4},
	url = {},
	doi = {10.5120/ijca2016912473},
	publisher = {Foundation of Computer Science (FCS), NY, USA},
	address = {New York, USA}


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.


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CAPTCHA Recognition, Character Recognition, Security, Animated GIF image, Image Processing