[HowlinglyMind-BendingAbsurdity]

Not a chance. This is bull.
The Shroud image has been studied and has 3-D characteristics.
You would not get that from an image on stained glass.
The Shroud image also displays anatomical and skeletal features
with a scientific accuracy unknown in art during the medieval period.
So the Shroud image came from an actual human body.

[Nikas777]

You would not get that from an image on stained glass.

If you go to the results of this teacher's experiments it is claimed they did produce a 3D negative image like on the Shroud. http://www.shadowshroud.com/images.htm