cocoon-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Pier Fumagalli <p...@betaversion.org>
Subject Re: Warped Text...
Date Fri, 02 Sep 2005 15:32:34 GMT
On 2 Sep 2005, at 16:23, Gianugo Rabellino wrote:
> On 9/2/05, Pier Fumagalli <pier@betaversion.org> wrote:
>
>> Guys,
>>      for one of our registration projects, we needed to verify that a
>> user is really in front of the browser (no automatons allowed). I
>> wrote, then, a little "text-warper" that randomly stretches text for
>> a user to see (and re-type) and writes out JPEG files.
>>
>> In addition to that I wrote a little random-text generator and
>> encryptor (so that you can be sure the text displayed is nowhere in
>> your HTML). An example of a generated image is attached here.
>>
>
> Did you look at what Ugo did with captchas?
>
> http://agylen.com/2005/05/16/captcha-validator-for-cocoon-forms/
>
> Ciao,

Yep, but SVG IMVHO is quite overkill to generate a simple image...  
Plus I suspect that the blurring algorithm is quite easy to recognize  
(in terms of running a simple image analysis package over the  
generated output).

I kinda like more random things! :-P :-P

     Pier


Mime
View raw message