[photo-3d] Distinguishing left/right or a pair (was Re: Stereo image web presentation)

[Paul Talbot <list_post@xxxxxxxxx>]

abram.klooswyk@xxxxxx wrote:

> But I cannot understand why Paul needed the marking L-R-L,
> for an image with so much depth, in which pseudoscopy is so
> obvious when you look at it that way.

In high school when they gave career aptitude tests, I probably
got migraines just trying to grok the questions in the "spatial
relationships" section.  I know there are ways to tell which is
left and which is right by the relative shift of the near and
far objects, but it's impossible for me to remember that rule!
The images were too wide for me to parallel view, and cross-
viewing is hit and miss for me, so checking for which pair was
pseudo was not a quick or easy task.  (It would be more friendly
to let the visitors know, rather than making us be 3D detectives!)
If I were familiar with the equipment used to take the photo (built
in stereo window or not?) I would have determined the layout by
whether there was more or less image at the left side of each frame.

Paul Talbot