On: Support HDR images in your app [video]

[turnsout]

Yeah, it does appear to be a reiteration of Rec. 2100 / BT.2100. I wonder if it's because this refers to still images rather than video?

[altairprime → turnsout]

Yes, that’s why:

https://stage.color.org/hdr/07-Nicolas_Bonnier.pdf (slide “Motivations”):

> Several attempts to use PQ/HLG and BT.2020 for still photography are surfacing

> But so far, the digital still imaging industry has not settled on a reference HDR/WCG image encoding for consumers

> The purpose of TS 22028-5 is to provide requirements and guidelines for HDR/WCG colour encoding of still images

And a bit further down, referring specifically to BT.2100:

> Shall use ITU-R BT.2020/2100-2 colour primaries