Moiré no more
I showed the original typewriter car scan, added my blurred-then-sharpened photo as a pathetic comparison, and asked: what is the latest in demoireing? Is there some new tech that could help me?
But this pales in comparison to the typewriter car photo I wanted to reuse, the one with all the dots, where we can see the FFT immediately betraying their repeated presence:
This sounded like a prank. You’re telling me that a problem I’ve witnessed for decades could be solved with a 1960s algorithm, and I don’t even have to be particularly careful? But I tried it out. I started crudely drawing over the peaks, one by one. Things were weird at the beginning, but then I saw something astonishing – the halftone dots started shrinking: