Celtic Knot - The Stereogram Version

[gwpriester]

I could not resist the urge to take the Celtic Knot Guest Tutorial for this month and try to recreate it as a 3D stereogram.

The actual image is 10" x 8" which is a little large to post here, but the depth is amazing at that size.

Gary

Gary Priester

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[Soquili]

Hi Gary,

I like this very much. It looks much better on my new LCD monitor at home than on the CRT monitor here at work though.

Mike - it can't be because you wear glasses. I wear tri-focals and I see them without any problem.

Soquili

[gwpriester]

Aside from Ross's suggestion (be careful not to get a nose print on your screen) here is another method.

The biggest trick is RELAX. This is not a pass or fail contest.

I like to pretend I am looking at something on the wall that is behind the image. In essence when you see the hidden stereogram image your eyes are focussing in the distance so pretending you are looking beyond the image can help.

Looking at a stereogram is a good way to gets your eyes to focus on the middle distance. There was a fellow a few years ago who was going to make a changing stereogram screen saver that would come up at user selected intervals so you could take an eye break and focus beyond the screen.

Gary

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[Mike Hennessey]

Yes, I wear glasses, and my wife does not. Is that what the problem is?

Mike

"You can't grill 'em, 'til you kill 'em"
Ted Nugent

[Bob Hahn]

I'd like try and make one too sometime.

I like those images. I have a bunch cut from the newspaper when they were more popular some years ago. But to make your own is even better

- Bob.

[gwpriester]

Mike and Bruce

Do you wear glasses or contacts?

Gary

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[Mike Hennessey]

seeing these isn't a driver's test requirment!

It just looks like some cheap carpet to me. No offense intended, I have never been able to distinguish these.

Mike
FWIW: My wife spotted it in seconds!

"You can't grill 'em, 'til you kill 'em"
Ted Nugent

[This message was edited by Mike Hennessey on April 06, 2003 at 14:21.]

[a4hire]

I think I am with Mike.
I could stare at that for an hour and all I see is the carpet.

[gwpriester]

we could start a thread and I could do some mini tutorials.

I have switched to Stereogram Explorer which does a much better job than PopOut Pro, the program I used for about 10 years.

Gary

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[simsmj]

Gary, I downloaded Stereogram Explorer, and have started playing with it. I notice that it offers the option of converging or diverging, with diverging being the default. I have always had trouble with the diverging kind of stereogram, but can see the converging kind effortlessly. Perhaps if you could post a converging version of your knot it may be that others could see it who couldn't otherwise.

The trick for converging grams is to slightly cross ones eyes, so that the image overlaps itself. It usually possible to see a repeating pattern, so try to make two adjacent patterns overlap on top of each other. At that point the 3d image should become apparent.

I tried using the depth map you posted in Stereogram Explorer as a converging image and could see the knot properly for the first time, and very effective it is too. Even the depth map looks the business!

Mike


Just chugging away...
Mike Sims