Removing ink/paint from a film frame?

So, say I had some deleted footage I wanted to use. Some of the frames have some sort of inked or painted script playing along them, like so:

To an effect, it's like when they add two vertical lines closing in on each other to indicate a fade. Is there any feasible way to automatically eliminate these markings? Or is it that I have to paint them out by hand? (Probably the latter.)

Do you have the actual film, or is this a scan that has already been done?

It appears to be a ready-made scan; I'm not entirely sure where it comes from, but I have it.

Oh, is that where it came from? Thanks for telling me!

Vertical gunk…?