[PATCH V11 31/47] drm/colorop: add BT2020/BT709 OETF and Inverse OETF

[Alex Hung]

On 8/15/25 20:45, Shengyu Qu wrote:
> Hi,
> 
> Thanks for reply. I guess we need to point this out in documentation or 
> code comment? As I can see different definition somewhere like this[1].
> 
> Best regards,
> Shengyu
> 
> [1] https://color.org/chardata/rgb/BT2020.xalter

It's the same one. You can find the ITU document in "Documentation 
source" in above link.

> 
> 在 2025/8/16 3:26, Alex Hung 写道:
>>
>>
>> On 8/15/25 11:54, Qu Shengyu wrote:
>>> Hello,
>>>
>>> What actually is this OETF? Is it power 1/2.4? Or reversed BT.1886?
>>
>> https://www.itu.int/dms_pubrec/itu-r/rec/bt/R-REC-BT.2020-2-201510-I!! 
>> PDF-E.pdf (Table 4?)
>>
>>>
>>> Best regards,
>>> Shengyu
>>
>