On 2 Sep 2005, at 16:44, Sylvain Wallez wrote:
Pier Fumagalli wrote: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).Just curious: what do you use to produce the image?
AWT... I create an image, dump some text into it, calculate a couple of sine-waves, use them as the displacement base, re-scale the warped image while antialiasing it... On my laptop, with Eclipse/iTunes/ blablalba and so on running, I can get something like 4 requests/ second (9 kilobytes/second) on 100x50 pixel images.
It can be optimized a lot, I'm sure about it, I waste quite a large amount of cylcles, but the code is so simple (100 lines with comments) that in a couple of iterations I'm pretty sure I can double the thrugput.
If it's lighter and more efficient that SVG, we may simply consider using your stuff for the captcha widget.
Pretty sure it's lighter than SVG (even in its current state)! :-D I'm all up for it, as long as it can be found also without CFORMs enabled (I don't normally include them but I need the reader) and as long as I don't have to integrate it (as I wouldn't know where to start).
Shall I commit it in a simple block with a couple of samples, just to show how it works???
Pier
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