[thelist] Security code images
David Dorward
evolt at david.us-lot.org
Tue Aug 3 09:11:13 CDT 2004
On 3 Aug 2004, at 15:01, Jono wrote:
> 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?
Optical Character Recognition can turn an image back into text. The
trick is to find a balance between unOCRable and unreadable by humans
while providing an alternative route that doesn't require the end user
(who might be blind) to use a browser which supports graphics.
--
David Dorward
<http://dorward.me.uk/>
<http://blog.dorward.me.uk/>
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