1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

3D captcha OCR

Discussion in 'General Programming Chat' started by thom.holland, Apr 23, 2012.

  1. thom.holland

    thom.holland Newbie

    Joined:
    Apr 23, 2012
    Messages:
    16
    Likes Received:
    0
    Hi all,

    I've been trying to write an OCR for the following captcha:

    barafranca.nl/im-no-cheater/(Refresh will generate a new captcha)

    I've managed to convert it to a black/white image with only 2 colours, like this:
    img99.imageshack.us/img99/7506/outputc.png

    And I've made a PHP script that is able to recognize certain patterns in the image, but hasn't been much help so far:
    img845.imageshack.us/img845/4073/testpo.png

    Do any of you have advice/tips on how to do this?
    I've tried Tesseract and GOCR but they don't recognize the 3D pattern and come up with gibberish, both when training and decoding...

    EDIT:
    I found out this captcha is called teabag_3d, I've already managed to find the source code (PHP) for it.
    Might be possible to reverse engineer it? Will check tomorrow.

    Anyone willing to help?
    I can also pay with PayPal if people here are up for doing this for money.

    Thank you
     
    Last edited: Apr 23, 2012
  2. ci_sreeju

    ci_sreeju Newbie

    Joined:
    Aug 9, 2012
    Messages:
    25
    Likes Received:
    2
    Occupation:
    Freelancer
    Location:
    India
    Are U still interested In An OCR For teabag captcha?
     
  3. zenoGlitch

    zenoGlitch Executive VIP Jr. VIP Premium Member

    Joined:
    Jun 25, 2009
    Messages:
    963
    Likes Received:
    1,511
    Location:
    Thailand
    • Thanks Thanks x 1