f17r

[oshfdk]

Now people may want to have another look at those multispectral scans...

I'm not sure if the disappearance of the ink in IR means that it's transparent or that it just absorbs at similar rate as the parchment, compared to some of the paint which looks really high contrast black. I took the far IR image (940nm) and tried to apply correction to it to increase the contrast at the levels of black corresponding to the text. A lot of the text is still visible, so the ink is not totally transparent in IR. But I'm completely unqualified to make any conclusions from this. I can only tell if something behaves like the text ink of the MS or not based on MSIs, I have no idea what different substances should look like.