Re: Going from simple to super CAPTCHA
| From: | Tijnema | Date: | Mon, 11 Jun 2007 18:27:33 +0000 |
| Subject: | Re: Going from simple to super CAPTCHA | ||
| References: | 1 2 3 4 5 6 7 8 9 10 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-256630@lists.php.net to get a copy of this message | ||
On 6/11/07, Daniel Brown <parasane@gmail.com> wrote:
Tijnema <tijnema@gmail.com> spake the following lore: Convert image to fixed width + fixed height + default depth, then do some work on it :P Tijnema Yeah, what work? Best of luck with getting a system to reliably translate one Jell-o blob of an image into another accurately and reliably. It's ASCII art time! Say I have an image of a cigarette: _______________________________ (_____(________________________@ Then, I morph the image so that it's SNAFU'd:You could even use a color check here to see which color matches the best ;) Tijnema_______ / \____ \_/ @/ / / \_____/( __/ Keeping in mind that it's ASCII art, you can still see the similarities. A computer, with an actual graphical image, probably wouldn't recognize it. It may instead see it as a snake, which could initially look like this://==\\ =o~ <==// \\==//Then matched with a selection of images that the user could pick from, the snake is morphed to: <============o~ To be a bit easier, I whipped up a quick example on the web. It's just static images, not a working system, but you'll see what we're getting at here:http://pilotpig.net/captcha-example.php