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

    Joined:
    Jun 25, 2009
    Messages:
    966
    Likes Received:
    1,519
    Location:
    Thailand
    • Thanks Thanks x 1