On 20/05/2025 14.28, Paul B Mahol wrote:
On Tue, May 20, 2025 at 6:25 PM Mark Filipak <markfilipak.i...@gmail.com>
wrote:
On 16/05/2025 19.01, Andrew Randrianasulu wrote:
пт, 16 июл. 2021 г., 09:36 Andrea paz via Cin <
c...@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!
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.
The CinGG CLUTs do everything in one step, so, no, IIRC you don't need to tonemap because they
tonemap. They take input yuv pixels from the input colorspace and output yuv pixels in the output
colorspace.
_______________________________________________
ffmpeg-user mailing list
ffmpeg-user@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-user
To unsubscribe, visit link above, or email
ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
