Forget about perception. Everything is fine with perception
How does brain decide how the object is lit? Well, it depends on the SHAPE of that object.
Those who imagine it being worn by a person (convex) see it as dark blue/black.
Those who imagine it as a piece of cloth (concave) see it as bright blue/gold.
It comes down as object being imagined being convex/concave: http://brisray.com/optill/vision2.htm
Interesting how a photo could accidentally have this property.
Geez. This took some time. Now I can go to sleep. But I can no longer "flip" it back to "convex" in my mind