[FFmpeg-user] [Cin] FranceBB's LUT collection

[Mark Filipak]

On 20/05/2025 18.44, Andrew Randrianasulu wrote:
> вт, 20 мая 2025 г., 21:25 Mark Filipak <markfilipak.imdb at gmail.com>:
> 
>> On 16/05/2025 19.01, Andrew Randrianasulu wrote:
>>> пт, 16 июл. 2021 г., 09:36 Andrea paz via Cin <
>> cin at lists.cinelerra-gg.org>:
>>>
>>>> I made a forum post to keep track of the repository. So if a request
>>>> is made we can direct to that post.
>>>>
>> https://www.cinelerra-gg.org/forum/help-video/francebb-luts-for-space-color-conversions/
>>
>> This looked promising, but it has to be put to bed.
>>
>> BT2020_HDR_PQ_to_BT709.cube - this CLUT doesn't exist. That's Ultra
>> Blu-ray HDR input to Blu-ray SDR
>> output -- two colorspaces that are as common as dirt -- but such a CLUT
>> doesn't exist!
> 
> down the list there were
> 
> https://github.com/FranceBB/LinearTransformation/blob/master/PQ_to_BT709_v1.cube
> 
> and v2 of it.
> 
> Did you tried them? Naming seems to be different from patter, may be
> because they one of oldest files there?

I input BT2020 HDR PQ to both of them. The two outputs were very bright. My guess is that 
PQ_to_BT709 means input BT709 PQ (i.e. an experiment) and output BT709.

Nothing worthwhile there. Too bad.