Re: Specifying an API to query the display color volume

Maybe also adding 2000 and 4000 nits (some mastering environments) and
10000 nits (PQ) would make sense?

-Benbuck

On Fri, Sep 8, 2023 at 5:49 AM Chris Lilley <chris@w3.org> wrote:

>
> On 2023-09-08 05:25, Lars Borg wrote:
> > I suggest that the list includes the following nominal max values: 48,
> > 80, 100, 160, 203, 235, 300, 500, 600, 720, 1000
>
> I get where some of these come from (48 is the DCI-P3 projector, 80 from
> sRGB, 100 in various places as "SDR max luminance", 160 is Adobe (1998)
> RGB white luminance, 203 is HDR Reference White from BT.2408-5).
>
> 500,600,1000 are the minimum peak luminance VESA DisplayHDR performance
> levels (but 400 and 1400 are missing).
>
> Could you explain 235, 300 and 720 please?
>
> Also when we say max, do we mean max full-screen or max restricted area?
>
> --
> Chris Lilley
> @svgeesus
> Technical Director @ W3C
> W3C Strategy Team, Core Web Design
> W3C Architecture & Technology Team, Core Web & Media
>
>
>