Re: Google and Spam and Captcha.



On Wed, 21 May 2008 17:24:55 GMT, Rich Grise <rich@xxxxxxxxxxx> wrote:

On Wed, 21 May 2008 16:38:57 +1000, Don McKenzie wrote:

JeffM wrote:
mpm wrote:
[...]Google Groups now has a box you have to fill in with letters
before you can post. (Not sure of the name),

CAPTCHA (Completely Automated Public Turing test
to tell Computers and Humans Apart)


I went and had a look at:
http://en.wikipedia.org/wiki/Captcha
as I have CAPTCHA on my web site contact form, but wondered what the
letters really meant, and see Alan Turing gets a mention.

But, have a look at the third series of alpha-numeric pictures on the
above page. Maybe I am getting old, but some of these are impossible to
read, and when they decide to enhance them with back ground drawings,
well, how does a human get to actually contact anyone in future?

I would find a mathematical question a lot easier, even if it was 3 or 4
levels of operations, with decimal point answers.

I've got an idea on my brain's back burner - to do something much like
that, but instead of distorted letters, it would show a picture of a
random animal - really obvious ones, like "cat" and "dog" and "lion"
and "horse" and so on, and say, "enter the N-letter name of this animal",
and give them a hint like the first letter:

[pic of lion] Please enter the 4-letter name etc: [L___]

But, I haven't got a round tuit yet. ;-)

Cheers!
Rich

This is already being tested out. I tried it out and took 4 tries to
figure out what various images were because they distort it and add
background noise. It was multiple choice answers and I still couldn't
figure out what the image was.
.



Relevant Pages

  • Re: Google and Spam and Captcha.
    ... CAPTCHA (Completely Automated Public Turing test ... to tell Computers and Humans Apart) ... letters really meant, and see Alan Turing gets a mention. ...
    (sci.electronics.design)
  • Google and Spam and Captcha.
    ... CAPTCHA (Completely Automated Public Turing test ... to tell Computers and Humans Apart) ... as I have CAPTCHA on my web site contact form, but wondered what the letters really meant, and see Alan Turing gets a mention. ...
    (sci.electronics.design)
  • Re: Google and Spam and Captcha.
    ... to tell Computers and Humans Apart) ... as I have CAPTCHA on my web site contact form, ... letters really meant, and see Alan Turing gets a mention. ...
    (sci.electronics.design)
  • Re: [PHP] Going from simple to super CAPTCHA
    ... > and might guess that the circle is an apple based on further analysis. ... > But we as humans could recognize it as an apple even if we stretched it ... > have an icon repository of animals, vehicles, plants, etc (very obvious ... Then to create a captcha we could randomly select X ...
    (php.general)
  • Re: [PHP] Going from simple to super CAPTCHA
    ... > and might guess that the circle is an apple based on further analysis. ... > But we as humans could recognize it as an apple even if we stretched it ... > have an icon repository of animals, vehicles, plants, etc (very obvious ... Then to create a captcha we could randomly select X ...
    (php.general)