Surely even a lossless compression is incredibly smaller. (But you can’t truly losslessly convert from film to digital, only commenting on uncompressed 1080p.)
Sure but that’s not the point, film is wholly uncompressed. When theaters get 4k digital releases they get mailed a hard drive with the movie on it. “This” wouldn’t fit on any card.
It’s hard to say, but film grain is noisy and noise does not compress well. In my experiments with lossless video compression without film grain you’d get a ~3:1 compression ratio. With film I’d guess closer to 2:1.
So 16k (15360 x 11520) x 12 bit per channel (36) x 24 fps x 3 hours (10800) is 206 TiB. Even with very generous estimates of compression ratios you’re not fitting this on anything less than a 2U server filled with storage.
Surely even a lossless compression is incredibly smaller. (But you can’t truly losslessly convert from film to digital, only commenting on uncompressed 1080p.)
Sure but that’s not the point, film is wholly uncompressed. When theaters get 4k digital releases they get mailed a hard drive with the movie on it. “This” wouldn’t fit on any card.
It’s hard to say, but film grain is noisy and noise does not compress well. In my experiments with lossless video compression without film grain you’d get a ~3:1 compression ratio. With film I’d guess closer to 2:1.
So 16k (15360 x 11520) x 12 bit per channel (36) x 24 fps x 3 hours (10800) is 206 TiB. Even with very generous estimates of compression ratios you’re not fitting this on anything less than a 2U server filled with storage.