On Tue, May 20, 2025 at 6:25 PM Mark Filipak <[email protected]> wrote:
> On 16/05/2025 19.01, Andrew Randrianasulu wrote: > > пт, 16 июл. 2021 г., 09:36 Andrea paz via Cin < > [email protected]>: > > > >> 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! > > BT2020_HDR_PQ_to_<something>.cube followed by <something>_to_BT709.cube -- > <something> being an > intermediate colorspace in common -- but such a <something> doesn't exist. > I tried every combination > that makes any sense and a few that make no sense. > IIRC you need tonemap related filter for HDR to SDR conversion. Simple LUT can not do it. > > _______________________________________________ > ffmpeg-user mailing list > [email protected] > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > [email protected] with subject "unsubscribe". > _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
