Those at least destroy any non-visible data.

I feel like contrast enhancement or similar would be able to bring that back.

That’s also why they scan in b&w with a potato. Also has the side-effect of making many graphs/charts impossible to interpret.

> "with a potato"

This is either a typo or I want to know more about it.

It's an Internet running Gag, if the quality of something produced by a technical product is bad, you might say: "Was this filmed/calculated/etc with a potato?"

https://www.google.com/amp/s/amp.knowyourmeme.com/memes/reco...