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Mark Regalo
23rd February 2011, 22:00
How can I reverse a high color temp of blue on the video I'm working with? I've tried tweaking RGBAdjust a lot but I just don't get what I want. The source is dull (not enough exposure, contrast, etc.) but it is very consistent. Also, it's an HD source.
StainlessS
24th February 2011, 05:47
Dont know if this can help you, see here,

http://forum.doom9.org/showthread.php?t=156774&highlight=graffer

save a single BMP image and load into the ColorYUV graffer,

might put you in the right ballpark and then find tune.
Not really complete at all, but still useful. Note, I use the term
'Rpow' rather than 'gamma', also 'pord' & 'spow' are not arguements
to ColorYUV, (just leave them alone)

EDIT: Perhaps I'll do an RGBAdjust graffer one day.
Mark Regalo
24th February 2011, 07:10
yea the coloryuv/levels graffer aren't really working for me. I figured out the right values for essentially increasing the exposure/contrast but the main issue is the reversal of the incorrect high blue color temp that the source was transferred to bluray with.
dansrfe
26th February 2011, 07:27
This is an interesting question...I have a few sources like this as well.
StainlessS
27th February 2011, 04:07
Would an RGBAdjust Graffer be useful?

Afterthought, just had a look, dont seem to have RGBadjust in my collection.
Dont think there would be any problem doing a graffer for this, not like
Tweak which I would not want to take a shot at. (the new options
of Tweak, shift certain ranges depending upon how close to a particualr color
one was, not lut based).

Just found that it is built in Avisynth function, and no weird conditional
stuff involved (I think), think this would be possible if required.
Would you like a graffer for this (dont hold your breath)?
poisondeathray
27th February 2011, 04:31
another option is to gimp or photoshop curves with GiCoCu

http://avisynth.org.ru/docs/english/externalfilters/gicocu.htm
Lyris
27th February 2011, 05:21
yea the coloryuv/levels graffer aren't really working for me. I figured out the right values for essentially increasing the exposure/contrast but the main issue is the reversal of the incorrect high blue color temp that the source was transferred to bluray with.

Nausicaa? ;)
Mark Regalo
28th February 2011, 06:23
Would an RGBAdjust Graffer be useful?

I definitely think an RGBAdjust Graffer would be useful. :)

another option is to gimp or photoshop curves with GiCoCu

http://avisynth.org.ru/docs/english/externalfilters/gicocu.htm

This option seems quite attractive actually. I will definitely try this and report back with my results.

@ all

I was wondering if posting like a 50MB sample of the raw BD source could help in this process...?
StainlessS
1st March 2011, 03:32
I definitely think an RGBAdjust Graffer would be useful. :)


Be-in dun.
StainlessS
31st March 2011, 09:06
I definitely think an RGBAdjust Graffer would be useful. :)


Have PM'ed you MediaFire Link.


I definitely think an RGBAdjust Graffer would be useful. :)

EDIT:-
Have PM'ed you MediaFire Link.

If you need to respond, please do it here:
http://forum.doom9.org/showthread.php?t=156774&highlight=coloryuv2