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FYI, they already do this by synthesizing film grain! https://waveletbeam.com/index.php/news/48-netflix-film-grain-synthesis https://waveletbeam.com/index.php/n

• gffrd 4y ago
  Interesting! For each source, they must develop a "grain profile" (or, likely multiple profiles) so they're applying the right grain ""effect" when re-graining? And on the re-graining: is this being done on the client side??? Like, is my Roku adding back the grain to my Paul Thomas Anderson films? (Note: I'm only 5 min through the video, so these may be answered)