Captcha Generator for Visually Impaired (Colour-Blind)

Today's Internet users come from a variety of ages and groups. Humans enabled in other ways also use the Internet. Some websites are designed for people with special needs. Many websites offer human user services, but unfortunately some computer programs are designed to exploit this service. As a result, a specific system called captcha was introduced (Completely Automated Public Turing test to Tell Computers and Humans Apart). For security and privacy purposes websites widely use CAPTCHAs. However, for individuals with visual impairments, traditional text-based CAPTCHAs are not very suitable. With many captchas already in place to help the visually impaired no such captcha exists that specially aims to aid the colour-blinded in using captchas. In this research paper we have tried to understand and showcase how the colour-blinded can be aided in using captchas. To achieve the same, ML has been used.