You probably know how to produce a 3-D image: hold the page about 10 inches from your eyes (optimum focus range) and cross your eyes until the two images superpose over one another. If this fails, then move your head slightly side to side, and move back. Eventually you will acheive image "lock".
All the images throughout this article were made using Paint Shop Pro, with some additional help from LView Pro.
I am fascinated by the Shroud of Turin. I have experimented using LViewPro, and PaintshopPro, in trying to create a 3 dimensional image from the 2-dimensional image on the Shroud. Below is an overview provided by PaintShop Pro's Browser, as captured by LViewPro and saved as a gif:
More images are under preperation, so come back periodically to check. Also, a special page on the Shroud Of Turin is also under preperation, so keep an eye open for that, as well.(Here's a preview:shroud.htm.
Here is the well known Masterpiece of Da Vinci. You may note that the only feature resulting in this image that appears 3-d, are the arms, especially the folds of her right arm. The differential exists primarilly in the slight narrowing in the right image, and perhaps in a slight shortening. As a curiousity, you may note similarities between Giaconda's facial features and that of the Image in the Shroud. The shading is especially noteworthy between them, especially when the Shroud is viewed as a negative image.
As another curiosity, something I have not confirmed, it appears that the surface on which Giaconda is painted may have had another image under it. Or it may just be my imagination, but below, note where indicated in red a profile of a face.
Looking at clouds or stains on walls is an excellant way to experience visual "cuing". For example, below is an image noticed while analyzing satelite images made of the wall of China. To the left of the wall, one may see what looks very much like a face, with much more contour and definition of, say, the so-called face on Mars: