Getting close to a source for f85r2

[oshfdk]

For what it's worth, another model trained on ink (the results of which I've been planning to add to my site for a while...) shows some ink line on the forehead of "the doctor", suggestive of some headgear.

You have the same thing around blue paint elsewhere so it is suggestive of a high contrast IMHO.

It is quite possible that you are right, because this pipeline includes a high pass filter as one of the steps (as opposed to the images I published back in December, which have no local correction). 

I've tried enhancing the image manually, and couldn't get a clear ink line anywhere on the forehead.