Skip to content

[Help] Optimize one capcha

ImmortalBardImmortalBard
edited August 2013 in GSA Captcha Breaker
I plan on buying the GSA captcha breaker, he shows a program of practical use and easy use. However the capcha why I got no need to spend a high hit rate, got around 50%. I know that 50% is a good value, only this captcha, is not to create e-mail, and must be fast and efficient, because I will use for a few hours, but it needs to be very efficient, through brute force, he got an answer that after I refined.
94%-scale
30.6%-threshold
-blur 0x1
-shave 0x1
-sharpen 0x1
31.2%-threshold
-remove objects 9
- Segment 0

If you get a 75% higher response I'll buy the program because it will be very useful for me, below is some captchas:

http://urlz.fr/7tw


Thanks anyone who can help me, Administrator, User or anyone. : D

Comments

  • rodolrodol
    edited August 2013
    I just read "I plan on buying the GSA captcha breaker..." Just do it, you will never regret.
  • ImmortalBardImmortalBard
    edited August 2013
    I understand, but the use of captcha breaker for me will be limited, it does not reach a high value on breaking success, it is meaningless to buy it
  • andy1024andy1024
    I purchased Chptcha Sniper before Chphcga Breaker and I used death by chptcha before CS,  I can only said CB and spamvilla together are the best  solution along my personal experience
  • OzzOzz
    50% is what i'm also getting after my first run. maybe its possible to get it at 60% at most.

    also remember that you get a 87,5% solving rate with 2 retries when having 50% for each try. with 60% for each try you have it at 94%.

    can you tell me what kind of platform this is (web20, social network, other, ...)?
  • SvenSven www.GSA-Online.de
    got it to 70% (20 captchas)
  • ImmortalBardImmortalBard
    @Ozz

    [SETUP]
    ;###############################################################################
    ;###### just some information for the user
    ;###############################################################################

    ;name of the system that uses this captcha
    engine name=

    ;what type is this engine (e.g. Guestbook, Social Boomark, Blog...)
    engine type=Unknown

    ;a small description
    description=

    ;how good is this setup to break the captcha in percent?
    success rate=50

    ;accept results where the chars are different but look the same like O=0
    accept same looking chars=0

    ;a image to show as sample
    sample captcha=.\2u7a.png

    ;a sample site that uses this...
    sample url=

    ;a icon that we should display in list (else we use the icon of the category)
    icon file=

    ;###############################################################################
    ;###### how to identify the captcha to this setup
    ;###############################################################################

    ;other names that external software might use as platform (seperate by ,)
    ;this is for programs that send the platform to us with the captcha image to make
    ;identification easier
    alternative names=

    ;dimensions that this captcha has... e.g. 100x40, 100-200x40-50
    image dimension=

    ;can be gif, jpg, png, bmp (leave empty to accept all)
    image type=
     
    ;if all the above methods still match more than one setup
    ;we analyse the background colour and match it against the one in the list
    ;it's a hex value with RRGGBB (red, green, blue)
    main background color=

    ;###############################################################################
    ;###### setting for the OCR
    ;###############################################################################

    ;what charsets are used in that captcha...
    ;by default its A-Za-z0-9 and some symbols. Add them all and no ranges
    charset=23456789abcdefghijklmnopqrstuvxzyw

    ;how short/long is the word that the captcha is delivering
    min length=4
    max length=4

    ;what orc to use (auto (all), gocr, cube, tesseract, [more to follow])
    ocr to use=auto

    ;when more than one OCR seems to deliver a good result we have to decide which one to take
    ;usually this is done automatically but for some engines it makes sense to set it fixed.
    prefered ocr=OCR2

    ;after the ocr engine delivers a result we might want to change certain things...
    ;ocr replace=A;4|B;8|C;0
    ;ocr remove="captcha presented by xyz"

    ;maybe the captcha has always one char that is always present...
    ;thats the case for math captchas e.g....if that + or - sign in not there we have a wrong result
    ;ocr must have=+|-

    ;instead of using OCR we use a fixed hash for each char that we compare
    use fixed chars=0

    ;when "use fixed chars=1" is used, we might still try to solve by filters (useful for programs that reencode
    ;to jpg with low quality and noise in resulting image)
    try to solve by filter=0


    ;instead of using OCR we make a crc32 of the image and compare it with the one we have stored
    use fixed results=0
    use min size=0
    min size=50
    use max size=0
    max size=50000
    use mask chars=0


    ;this is an advanced option where you can make a CRC32 of a fixed image (file content) and
    ;set a result here. syntax: <crc32>=<result>
    ;make sure you remove the comment of this section if you use this
    ;4CA39E3F=JANINE

    ;the real thing starts here...

    [fixed chars]
    box start x=0
    box start y=0
    box height=42
    box width=42
    apply image filters=0
    try to solve by filter=0

    [mask chars]
    try to solve by filter=0
    apply image filters=1
    min match score=70
    [PROCESSING1]
    -scale 94.0%
    -threshold 30.6%
    -blur 0x1
    -shave 0x1
    -sharpen 0x1
    -threshold 31.2%
    -remove-objects 9
    -segment 0



    what i can do?

  • OzzOzz
    as it seems that Sven has found the best definition you should wait for the next update of CB.
Sign In or Register to comment.