New CAPTCHA

Discuss features as they are added to the new version. Give us your feedback. Don't post bug reports, feature requests, support questions or suggestions here.
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Discuss features as they are added to the new version. Give us your feedback. Don't post bug reports, feature requests, support questions or suggestions here. Feature requests are closed.
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sky.strife
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Re: New CAPTCHA

Post by sky.strife »

Wernight wrote:
Cheater512 wrote: Actually I think the algorithms are rather easy (do you think those magic eye books are done by hand? ;) ) and a computer would have difficulty undoing it because it requires two eyes.

Of course it would be a lot easier than the harder ones.
Diffuculty undoing it? Not really difficult. A bit yes, but the problem is that most people can't read it. It's called stereogram (an exemple here: http://www.beroux.com/?id=8).

The 3-D puzzle sounds nice as the computer would have to check for symbols every rotation untill it find that one of them looks like a letter more then the others. The problem is that is requires some dynamic HTML or some way to show 3D generated on the client (an not a server generated image). Interresting idea still I find. The generation of such 3D images isn't that hard. A Java could handle it. Server generate a random string and a number of points in 3D for them, send it to the client that display them in 3D with rotation possible. Dynamic HTML is enough. It's probably more compatible. A text below: "Rotate the view until some letters appear and copy them in the text-box below.".

My first idea of using 3D was more to generate a 2D image server-side that represents a 3D scene, in order to make transformations that humans (only) can find easily. Understanding a 3D scene is *beep* hard for a computer.
Yeah, I can't read that at all. >_<

Might be hard for the computer to figure out, but if the user can't either it defeats the purpose.
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MKruer
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Re: New CAPTCHA

Post by MKruer »

Here is an example of what I was talking about.

PS view the Image to see the animation. :mrgreen:
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nuclear_eclipse
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Re: New CAPTCHA

Post by nuclear_eclipse »

MKruer wrote: Here is an example of what I was talking about.

PS view the Image to see the animation. :mrgreen:

That's really cool, but I'd be afraid that the OCR/AI buggers would just keep turning it until it found something, and I have a feeling it'd be easier to decode a properly-turned version of what you have than anything previously seen in this thread... :(

But it's an incredibly cool idea nonetheless, and would at least make it that much harder by forcing the AI to actually figure out how to interact with something before trying to decode it.... :!:

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DavidMJ
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Re: New CAPTCHA

Post by DavidMJ »

Hmmm... How would the masses get access to such a generated image? GD does not support animation.
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nuclear_eclipse
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Re: New CAPTCHA

Post by nuclear_eclipse »

Isn't there a way to generate a flash file on the fly with PHP? Perhaps you could do it that way...

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DavidMJ
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Re: New CAPTCHA

Post by DavidMJ »

Flash can indeed by animated in PHP. However, not many have it enabled by comparison with GD. I also dislike Flash on sheer principle :D
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nuclear_eclipse
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Re: New CAPTCHA

Post by nuclear_eclipse »

DavidMJ wrote: I also dislike Flash on sheer principle :D
I completely agree, and the use of it would rule out the ability of users without flash-enabled browsers from accessing your forums. It's just simply an idea for a possible 'choice' of users, or perhaps more of an idea-stimulant rather than a suggestion to actually use flash (which I would never personally do). As a web designer myself, I almost never use anything on my site beyond XHTML and CSS, but I'm always looking for all possible ways to accomplish something, then decide on which way is the best.

Perhaps there is a 'better' way of accomplishing something like this. Perhaps you could use Javascript or DHTML to have buttons below the image that 'rotate' it around and the user has to have it on the 'most correct' image, and then also fill in the box with what the image contains... :idea:

MKruer
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Re: New CAPTCHA

Post by MKruer »

I cant really animate this at the moment but here was the other idea.
Basically you have 3 or more images; each image contains a section of the word to be deciphered. The user would need to align all three images correctly for the word to be reveled.

Sorry I could not animate this, but I hope that someone will understand and make an animation.
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Image 1
Image 1
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Image 2
Image 2
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Image 3
Image 3
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MKruer
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Re: New CAPTCHA

Post by MKruer »

Danm 3 image post limit.

Here is all three images correctly alinged.
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Cheater512
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Re: New CAPTCHA

Post by Cheater512 »

MKruer thats sort of what I'm thinking. Make each piece a separate (smaller) image, make the backgrounds transparent and make them float around a box a bit in a way which allows the user to see the text. :lol:

Flash is out of the question. I dont install it as a matter of principal. ;)

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