On Feb 17, 2012, at 12:36 AM, Patrick Hafner wrote:

> Hi,
> have you tried reCAPTCHA by Google?
> You can find the PHP library on the website.
> Easy to use, customizable and free, but nothing to install on your server (no 
> open source)

But it aid OCR to Text activities at google and all libraries and educational 
institutions but enlisting humans to translate undecipherable scanned words.


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