Fotoartist Loc: Detroit, Michigan

I don't fully understand the controversy but I find the ability to turn Old Master paintings into 3D like these fascinating.

selmslie Loc: Fernandina Beach, FL, USA

No less skillfully executed. Note the position of the girl and her hands in relation to the background - the overlap has been done with layers and cloning as in the first image. Also, all of the shift is left<>right only, as it should be.

Unfortunately, the two images for the cross-eyed view are very small. The only way to appreciate the 3D is to download this thumbnail and view it at 200%.

selmslie Loc: Fernandina Beach, FL, USA

You can find more information under discussions of depth map creation.

Here is another example found in an article on depth map creation: https://triaxes.com/articles/manual-depth-map-creation/



You can see that in this image, as in all successful 3D images, the shift between the left and right eye view is strictly left<>right. There is absolutely no vertical displacement or distortion.

selmslie Loc: Fernandina Beach, FL, USA

My comment on the anaglyph image of Leda and the Swan got lost in the shuffle. That's can happen when I try to do to many things at once.

The conversion by Galmarini(sp?) was very skillfully accomplished using depth mapping or layering with left<>right pixel shifting and some cloning. Looking at the swan's right wing behind Leda you can see how it shifts in relation to the tree in the distant background. As you look at the image and move your head from side to side, the foreground remains in place and the background shifts.

Note that this conforms the #2 requirement stated in my opening post - left/right shifting only, absolutely no vertical displacement or distortion.

Fotoartist Loc: Detroit, Michigan

I can see that point.

selmslie Loc: Fernandina Beach, FL, USA

The rationale behind point #2 is that our eye/brain cooperation is accustomed to crossing our eyes to allow the images to overlay. When one eye moves vertically the other follows to keep the overlay intact, even if a closer or more distant element requires us to increase or decrease the amount of crossing.

It is rare that this cooperation between the eyes fails. You may remember Marty Feldman (Young Frankenstine, etc.), "Feldman suffered from thyroid disease and developed Graves' ophthalmopathy, causing his eyes to protrude and become misaligned." He made a virtue of necessity.



He could move his eyes independently, like a chameleon. Only someone with his [dis]ability would be able to view an image pair that is vertically misaligned.

selmslie Loc: Fernandina Beach, FL, USA

I found a better Shear editor at Photopea.

The Shear dialog is larger and easier to use. There are also many other features not available in my old copy of PS Elements (version 11).

(Download)