P3D Re: Multiple-image stereograms (?)

["Dr. George A. Themelis" <DrT-3d@xxxxxxxxxxxxxxxxxxxxxxxxxxx>]

I am not an expert in this subject, but I think the stereograms
that you have in this site:

http://www.envf.port.ac.uk/3d/

are known as "multiple-column stereograms".  Of course, you can vary
the spacing of these "multiple images" and, in addition to this:

>there is
>not just a pair of images but a whole string of them, which when
>viewed parallel- or cross-eyed give the effect of depth, and which
>allow the viewer to see much wider images than a pair on their own.

you also get a varied depth effect within this wider image.

This is exactly the type of images that Don Peck here in Cleveland
patented in 1974.  I am sure he was not the first one to notice
the effect, but, as you did, he independently discovered these,
realized their artistic appeal and commerical potential and tried
to find applications for them.  We published his story in an
interview in the last issue of the "Stereogram", the newsletter of
the Ohio Stereo Photographic Society.

>I don't have the software or the skill to produce anything impressive,

Imagine, Peck was doing this by hand!!!  He was an artist, working
for "American Greetings" at the time.  It took hours under the
magnifying glass to draw one of this!

George Themelis


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