chros wrote: ↑Sat Aug 07, 2021 11:10 am
Btw, since you are the DoVi guru (and we know a lot about hdr10), I don't really understand what the min (max) limunance setting does in reality. I don't see the point. Do you know anything about this? Thanks
I'm not sure what min/max you're talking about, in the RPU metadata?
It's usually the measured values for a frame/scene, so that's the dynamic part..
Also, setting the source min and max PQ in the RPU to proper values for limited has an effect.
Now I see down to 78 with 62/3696 (as spec says for profile 7), and 74 with 7/3079
Somehow 7/3079 is also being used in UHD BD.
From the data I can collect with the level 6 metadata (mastering display)..
Max 1000, min 1-10 should be 7/3079.
Max 4000, min 50 should be 62/3696.
Not sure about 10 000 nits but apparently Stacey Spears' sample would be correct by that logic.
Not sure why the image isn't though, so there might be a benefit of using different source values.
Maybe Dolby is crushing blacks a lot more for 10 000 nits mastered?
Here are samples to try:
7/3079:
https://mega.nz/file/scFxEQob#UUiBMJBSV ... 1fwGJZ6URo
62/3696:
https://mega.nz/file/YINjjYxK#IqOGwxla5 ... HTgern5QIs