[andreareina]

Past discussion: https://news.ycombinator.com/item?id=28663719

Relevant xkcd: https://xkcd.com/1814/

[dang]

Thanks! Macroexpanded:

Moiré No More - https://news.ycombinator.com/item?id=28663719 - Sept 2021 (112 comments)

Moiré no more (How to de-moiré a halftoned photo) - https://news.ycombinator.com/item?id=28394884 - Sept 2021 (2 comments)

[PuddleOfSausage]

Ah, thanks. I did search before submitting but nothing came up at the time (must have been my connection).

[dang]

Reposts are fine after a year or so! This is in the FAQ: https://news.ycombinator.com/newsfaq.html.