Improve Captcha's Security Using Gaussian Blur Filter
نویسندگان
چکیده
منابع مشابه
Improve CAPTCHA's Security Using Gaussian Blur Filter
Providing security for webservers against unwanted and automated registrations has become a big concern. To prevent these kinds of false registrations many websites use CAPTCHAs. Among all kinds of CAPTCHAs OCR-Based or visual CAPTCHAs are very common. Actually visual CAPTCHA is an image containing a sequence of characters. So far most of visual CAPTCHAs, in order to resist against OCR programs...
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ژورنال
عنوان ژورنال: Signal & Image Processing : An International Journal
سال: 2014
ISSN: 2229-3922,0976-710X
DOI: 10.5121/sipij.2014.5504