Sure. Just make sure you don't name the images, if you store on disk,
with the text that is to match. D'oh!
--
Robert Garcia
President - BigHead Technology
VP Application Development - eventpix.com
13653 West Park Dr
Magalia, Ca 95954
ph: 530.645.4040 x222 fax: 530.645.4040
[EMAIL PROTECTED] - [EMAIL PROTECTED]
http://bighead.net/ - http://eventpix.com/
On Jun 12, 2006, at 5:01 PM, Roland Dumas wrote:
got it. then create a user-scope variable that matches the content
of the image, and if it matches on submission, it is accepted.
On Jun 12, 2006, at 4:53 PM, Robert Garcia wrote:
You don't need even imagemagick, you just build a bunch of them,
or download from someelse, and store the gif in a database, with
another field that contains the matching chars. So maybe you have
200 gifs, with diff text, and you randomly pull one from the db,
and you just match from the db, not the image.
--
Robert Garcia
President - BigHead Technology
VP Application Development - eventpix.com
13653 West Park Dr
Magalia, Ca 95954
ph: 530.645.4040 x222 fax: 530.645.4040
[EMAIL PROTECTED] - [EMAIL PROTECTED]
http://bighead.net/ - http://eventpix.com/
On Jun 12, 2006, at 4:42 PM, William M Conlon wrote:
imageMagick.
http://www.cit.gu.edu.au/~anthony/graphics/imagick/text/
But .... to be fair to non-sighted, you need to provide an
alternative. Maybe festival? (text to speech).
On Jun 12, 2006, at 4:21 PM, Roland Dumas wrote:
we've all seen it, but not sure how to conjure up that kind of
function. Is there a graphic generating program?
On Jun 12, 2006, at 1:49 AM, Alan Wolfe wrote:
one way is to procedurally generate a graphic of a random text
string that has lines through it etc and have the person type
in the text string they see in the image and you compare that
server side to see if they match. If they don't match, don't
make the post but if they do, make the post then.
If you haven't seen this technique before, the theory is that a
computer program can't recognize distorted text in an image
while a person easily can.
On 6/11/06, Roland Dumas <[EMAIL PROTECTED]> wrote: I have a
form on one site that just sends the owner an email. No big
deal. It gets a handful of messages a day.
All of a sudden, the form starts to get spam submissions. Lots of
them. Each one from a different IP address. They are all of the
same
form and have an argument for each field in the form, but the
content
varies. The most common email address entered is at
cashette.com , a
spam filtering service.
Any ideas how to combat this kind of stuff?
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William M. Conlon, P.E., Ph.D.
To the Point
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