Free captcha validation tools?

This is a discussion on Free captcha validation tools? within the General Discussions forums, part of the Community Boards category; I've been experimenting with some captcha-generating algorithms and I'd like to be able to verify their effectiveness (but not really ...

  1. #1
    Guest Sebastiani's Avatar
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    Free captcha validation tools?

    I've been experimenting with some captcha-generating algorithms and I'd like to be able to verify their effectiveness (but not really in the mood to develop my own OCR engine!). Anyone know of any free applications (or even online utilities) that can do this?
    Code:
    bool flip(bool value)
    {
        return std::pow(std::exp(1), std::complex<float>(0, 1) 
        * std::complex<float>(std::atan(1)*(1 << (value + 2))))
        .real() < 0;
    }

  2. #2
    l'Anziano DavidP's Avatar
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    Define "effectiveness".

    Effectiveness at resisting a bot?

    Effectiveness at actually working and looking like the letters are supposed to look?

    The only reason I could see that you would have to "design your own OCR engine" is if you wanted to break your captchas or at least attempt to.
    My Website

    "Circular logic is good because it is."

  3. #3
    Guest Sebastiani's Avatar
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    Quote Originally Posted by DavidP View Post
    Define "effectiveness".

    Effectiveness at resisting a bot?
    Right - basically, I just want to verify that the generated captcha is, in fact, sufficiently secure.
    Code:
    bool flip(bool value)
    {
        return std::pow(std::exp(1), std::complex<float>(0, 1) 
        * std::complex<float>(std::atan(1)*(1 << (value + 2))))
        .real() < 0;
    }

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