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SvennoJ on 24 August 2012
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NiKKoM said:
SvennoJ said:

Would it not be beneficial to color resolution though? All digital videos go through 4:2:0 chroma subsampling before compression begins.
Effectively leaving you with 960x540 for color resolution. (That's why upscaling causes color bleeding) I suppose this is not going to change for 4K blu-rays, but those will have 1920x1080 color info when captured from the original.

Is 35mm film good enough to capture full 2K digital color at least?
It should be for Disney movies at least, I read somewhere that they store their movies with the color info split out into separate black and white reels for better conservation. Then they are combined again to make a full color version.

no not really.. the scanned film in 2k or 4k are stored as DPX files. The file format is most commonly used to represent the density of each colour channel of a scanned negative film in an uncompressed "logarithmic" image where the gamma of the original camera negative is preserved as taken by a film scanner. (took that from wikipedia) lets just say it's the best of the best for color, it's raw ,it isn't compressed.. they capture full color.. it's the medium and compression after that that uses chroma subsampeling.. blu ray only supports 4:2:0 so maybe the medium after that will use 4:4:4

So the 2K DPX master can already make a better 4K 4:2:0 blu-ray version, or a 1080p 4:4:4 version. Scanning in 4K would be better to get the best luminance detail ofcourse.

I would love to see 4:4:4 1080p content, lossless compressed even better. Pictures look much clearer then film on a projector. It won't matter for my 1080p tv as I found out it can't even display 4:4:4 content. Everything automatically gets down converted to 4:2:0 apparently.
This RGB image I made only displays correctly on my pc screen and projector. Are most tvs limited to 4:2:0 or is cause mine is back from '06?

Projectors aren't perfect either anyway, the color lcd filters are slightly misaligned at one edge, only really noticeable when sitting nearby reading small pc fonts on a white background.
A 4k projector or tv would push all these imperfections further away, good enough reason for me to get one.