[photo-3d] Re: Anaglyphs on the computer/PowerPoint presentations

["Chris Cavigioli" <chris-c@xxxxxxx>]

I created anaglyphs from Olympus D-600L digital camera single photos 
at various stereo separations and then tried to sequence them such 
that you could witness the hypo-stereo or hyper-stereo effect as a 
moving picture sequence of anaglyphs.  

I used Paint Shop Pro 4.14 to create the gray-scale anaglyphs from
the 
color .jpg camera images.  Each individual anaglyph turned out pretty 
good.

I projected the resulting sequence of anaglyphs from my laptop using 
an In-Focus LCD projector a few months ago at the Oakland Camera Club 
Stereoscopic Division club meeting in Oakland, CA.

The result was not as spectacular as I expected.  I had three basic 
problems:

(1) 
Several anaglyph viewing glasses variants failed to block the red
part 
of the anaglyph.  This was the biggest problem.  It was sometimes 
hard to fuse the image when the red filter was leaking double images.
 
I tried red-green glasses and reg-cyan glasses, but the problem was 
the red color, not the green or cyan.  I haven't found glasses with a 
different red color.  They all seem to use the same 'red'.
---> possibly the red needs to be tuned to the laptop LCD display or 
the In-Focus LCD projection image ... and it wasn't
---> possibly the color in the anaglyphs could be manipulated to
match 
the red in the viewing glasses, but I haven't figured out how to do 
that in Paint Shop Pro 4.14.  any ideas?

(2) 
In creating the anaglyph from stereo pairs, I just pasted L and R 
image exactly on top of each other.  Perhaps some shifting of the 
images would need to happen to create the correct stereo window, but:
 (a) I'm not sure if this is true ... any ideas?
 (b) I don't know how to shift one image using Paint Shop Pro 4.14
 (c) The resulting image would need to be further cropped to
eliminate 
the 'junk' around the edge of the non-overlapping images.

(3)
I did not use a precision slide bar or rail, so I may have had some 
rotational or translational distortion in the images which I was 
forced to overlap exactly (without shifting).

If anyone has experienced better results than I did, I would love to 
learn more and re-visit this project and do it right.

-chris in SF