Hi, one of the problems in Blu-Ray / UHD is their color calibration which often does not suit everyone.
Would it be possible to use HDR metadata to create multiple color calibration in one file?
For example, Matrix in HDR10+ would be like 2000s green calibration, HDR10 would be like cinema 35mm, and Dolby Vision would be like the actual UHD BD
There's no need to have 3 separate color grades. Just get it right the first time. And calibrate your display.
But to answer the question, no I don't think it's technically possible.
In a movie like Matrix, it's interresting to have several color timing.
It depends on your nostalgia.
Lot of people discovering it with the green filter
I imagined HDR metadata is like a LUT, and the encoded movie is in LOG.
You can give several different LUTs to have different style to your movie
But maybe it's different
(2023-03-15, 11:04 PM)Falcon Wrote: [ -> ]In a movie like Matrix, it's interresting to have several color timing.
It depends on your nostalgia.
Lot of people discovering it with the green filter
I imagined HDR metadata is like a LUT, and the encoded movie is in LOG.
You can give several different LUTs to have different style to your movie
But maybe it's different
I love your creative idea, and thinking outside of the box, and I'd like to try it
(2023-03-15, 11:04 PM)Falcon Wrote: [ -> ]I imagined HDR metadata is like a LUT, and the encoded movie is in LOG.
You can give several different LUTs to have different style to your movie
But maybe it's different
Unfortunately no that's not how it works. The grading is baked into the actual video data of the HDR10 base layer.
HDR10+ carries only per-shot brightness levels, and it's up to the display to tone map that if necessary.
In Dolby Vision's case, the colorist has additional controls to manually define tone mapping curves (mostly some lift, gamma, gain adjustments). However, it's probably not possible to wildly change the grading (e.g. adding or removing a strong green tint) with just tone mapping controls.
In either case, these only apply when tone mapping is necessary, i.e. a shot has a pixel that's brighter than the display's peak capabilities. When the display is bright enough, HDR10+ and DV presentations will look exactly identical to base HDR10.