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ICMCS
2006
IEEE
133views Multimedia» more  ICMCS 2006»
14 years 5 months ago
A Captcha Based on the Human Visual Systems Masking Characteristics
In this paper, a CAPTCHA is presented based on the masking characteristics of the Human Visual System (HVS). Knowing that noise can be masked by high activity regions and showing ...
Rony Ferzli, Rida A. Bazzi, Lina J. Karam