[thelist] Security code images

Jono ox4dboy at comcast.net
Tue Aug 3 09:01:10 CDT 2004


I do not read the entire article on phpnoise, but I see that the code uses:

<?php 
 /*Send header*/ 
Header("Content-Type: image/png");
?> 

That means that an image (png) appears, and as far as I know, "machines"
cannot read images, only text.  I am only assuming here.  Am I way off on
this?

On 8/3/04 9:22 AM, "Matt Warden" <mwarden at gmail.com> wrote:

> Interesting article. It intrigued me enough to play a bit. I can't
> quite come up with the best way to distort the image to make it
> difficult to read by machines. I tried arcs and dashed lines, both
> with some degree of random placement.



More information about the thelist mailing list