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Author Topic: OCR with a really tricky captcha..  (Read 1734 times)

Will

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OCR with a really tricky captcha..
« on: May 04, 2012, 12:02:43 am »
Struggling with  http://barafranca.nl/im-no-cheater/ (Press refresh for diff catpcha)

Working with imagemagick and managed to find a good library of useful functions.
Got the image camera perspective working mostly:



Now Gunna try finding the standard diviation of the area within each square and filter out everything except the top 5% and bottom 5%. Hopefully this will leave an outline of the characters within the captcha.

If this doesnt work i figured Hough transformation and flood fill algorithms would be the obvious next things to look into.
Any ideas? (php only)
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Steff

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Re: OCR with a really tricky captcha..
« Reply #1 on: May 04, 2012, 06:14:33 am »
What hase his to do with wow modding?
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schlumpf

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Re: OCR with a really tricky captcha..
« Reply #2 on: May 04, 2012, 09:17:49 am »
Quote from: "Steff"
What hase his to do with wow modding?
Nothing. That's why it is in the random category.
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Will

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Re: OCR with a really tricky captcha..
« Reply #3 on: May 04, 2012, 11:27:56 am »
There aren't many forums where the community are willing to share ideas for stuff like this. It's a long shot posting here, but if it isn't appropriate, i'll take it down.

Anyway, nobody has any ideas how to tackle it? :S
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Steff

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Re: OCR with a really tricky captcha..
« Reply #4 on: May 04, 2012, 12:13:59 pm »
As we are no hacker Forum but a modder forum I dont think so.
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