On 2009-08-28 00:07:42 -0700, "Jeff R." said:

I have long enjoyed stereo photography, in cross-eyed and parallel
free-view, anaglyph through coloured glasses and cross-polarised
projections.

I was interested to see the "stereo" effect (unintentional) which can
be seen on some webpages which use strongly contrasting colours.

Like so:
http://www.mendosus.com/photography/colour-stereo.html

Can everyone here see the apparent differences in depth of the coloured
text on that page?
Can anyone resolutely *not* see it?

Does it work with one eye closed?
(It doesn't for me.)

More interestingly, can anyone offer a simple, understandable
explanation for the effect?

Googling produces some joy, but not much. (Too tight to pay for
research papers.)

Anyone think there could be implications here for landscape
photography? (Or is the effect too gross/unsubtle?)

Color contrast is one of many testing and correction methods used in optometry.
A part of the Humphriss Immediate Contrast Test, is to have two solid
black square targets, one on a green field and one on a red field. The
eyes are tested individually and then binocularly
Due to focus in front of the retina for the shorter wave length, higher
frequency green and behind for the longer WL, lower frequency red, one
target will appear sharper than the other until correcting lenses
balance the vision binocularly. Then the targets should be seen with
similar clarity.
This is one of the reasons the old 3D glasses were one green and one
red lens, they screwed with your binocular balance to create the
illusion of 3D.

--
Regards,

Savageduck