[versteegen]

Other things like hlb-gpt? :)

I'd studied the problem to work on it, but didn't get as far as you. I agree that intuitively (not backed up by experiment) I expect that preprocessing to further flatten the segments and other hand-crafted features based on desired invariances should work well. It seems that a lot of people really have just used 2D convolutions, applied to just one or a few surface layers and then combined. So I'd also be interested in your code.

> I surmised that that 'crackling' effect actually is just of course slices of the data over different rifts in the parchment, and that the data of the ink lay on the manifold of that crackling and bending.

I'm afraid I can't follow this.