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Method to adjust color temperature?
#1
Is there a method of converting between two color temperatures in Hybrid?

I have an NTSC-J (9300k) capture that I'd like to bring inline with the Rec.601/709 (D65/6504k) standard. This is a non-linear conversion so it can't be done with standard RGB adjustments.

Thanks!
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#2
Nope, don't know of any Avisynth or Vapoursynth filter for that.

Cu Selur
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#3
(08.03.2021, 05:47)Selur Wrote: Nope, don't know of any Avisynth or Vapoursynth filter for that.

Cu Selur

I was afraid of that... Thanks for the response!
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#4
found a few threads that might give further hints:
http://forum.doom9.org/showthread.php?t=172860
http://www.digitalfaq.com/forum/video-ca...tings.html
https://forum.doom9.org/showthread.php?t=171477
https://forum.doom9.org/showthread.php?t=170309

Cu Selur
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#5
(08.03.2021, 06:13)Selur Wrote: found a few threads that might give further hints:
http://forum.doom9.org/showthread.php?t=172860
http://www.digitalfaq.com/forum/video-ca...tings.html
https://forum.doom9.org/showthread.php?t=171477
https://forum.doom9.org/showthread.php?t=170309

Cu Selur

Thanks for digging up those threads!

A few of those posts are with regards to the 0-7.5IRE discrepancy which can luckily be corrected using a waveform parade & pedestal/brightness control during capture.

I'm thinking that "CheapColorTemp" script might be my best bet in the AviSynth domain although since its a bit relative & destructive, I might as well use Adobe Premiere to quickly (& arbitrarily) correct it... Without an accurate transfer function, maybe I'll just leave it alone and deal with the slightly blue whites until someone skilled with colorimetry comes along and writes a script to transfer between two known color temps with minimal losses. Smile

Once again, always appreciate your help.
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