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
You could even use a color check here to see which color matches the best ;)
Tijnema
Ah, but that validates my exact point --- the system will see the
overlay over the legitimate cigarette image as being image-synonymous
with the snake as an option by color pattern, while the parent image
matches best with the first child option image in shape.
--
Daniel P. Brown
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[mobile] (570-) 766-8107