Picture Frame Glass Effect

[claytoncarney]

(08-08-2026, 08:25 AM)rich2005 Wrote:

(08-06-2026, 11:00 PM)claytoncarney Wrote: Is there a way in GIMP to take an existing image and simulate the effect of placing a sheet of glass on top of the image (viz., a photo in a picture frame)?

Question.  What sort of effect should it be ?

I use 3D stereograms ('magic eye') for vision training. I find placing a sheet of glass or acetate over an image encourages the eye divergence needed to perceive the 3D image.

I was looking for a way to digitally simulate the same effect.