Re: [APML] OT: Opportunity 3D Images

[Chuck Vaughn <aa6g@aa6g.org>]

Dale,

The stereo pair at the top of the page are swapped for the cross eye 
method. The moon looks like a dish. If I use the parallel method then 
it looks like a sphere. I swapped them in Photoshop to make sure they 
would work with the cross eye method. It does.

One would think 5000 miles apart would be enough but maybe the 
resolution is too low. APT images make poor anaglyphs but HRPT work 
fine. The only difference is resolution.

It doesn't make any difference how far apart the red/cyan images are 
(within reasonable limits). You can't change the 3D affect by moving 
one a few pixels. If the images are precisely aligned of course there's 
no 3D and if the images are too far apart the brain has difficulty 
merging the images. Between those limits it makes no difference.

Try moving the red image in Photoshop and then observe the image in 3D 
while performing a Undo/Redo Move with a keystroke. You'll see it jump 
but the result is unchanged.

The only way you can increase the 3D affect is to place the two cameras 
farther apart. I proved this a couple years ago with my 3D weather 
satellite images. The farther apart that the satellites were in the sky 
the greater the 3D affect. Did you the images I did with NOAA 12 and 14 
when they were close together?

Chuck

-------------------------------------

> Hi
> Picture Window has a very easy to use anaglyph creator with sliders to 
> change the offset for greatest effect.
> I used it to create an anaglyph of the Moon during the recent total 
> eclipse using images taken at the same time from 5,000mi
> apart. Pretty good 3D effect. You can see it at the bottom of this page
>
> http://homepage.ntlworld.com/p.lawrence1/lunar_parallax_stereo.html
>
> Dale Ireland

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