Image Analysis

Abstract

With the proliferation of Web services, it is imperative to minimize spamming and security risks. Spammers use software to automate the process of creating fake online accounts to be used later as a source of spam and illegal activities or simply to waste the resources of the website. In order to mitigate this risk, CAPTCHA was introduced with the main purpose of identifying whether the end-user is a human or a computer (i.e computer program).