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Blu Ray Color Space

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stephan hill
Blu Ray Color Space
on Oct 23, 2009 at 3:02:03 pm

I am having a hard time understanding what the color relationship is in a HD video and a Blu-ray disc. Working with SD footage and now learning about HD I always assumed HD was useing a NTSC single and I would color correct using FCP NTSC scopes. I would then burn my HD footage on a blu-ray disc.

the more I dig the more confused I get and it seems that HD footage is not NTSC dependent if I go from Blu-ray to HD monintor?

Is a blu-ray disc using a NTSC single and there by its color space? If HD and Blu-ray has a better color depth or range then SD video then I would assume that I would not color correct it using a NTSC NTSC scopes and parameters.

It seems applying a NTSC color space to a HD blu-ray single would be dumbing it down.

Sorry for how dumb this question is!




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Alan Okey
Re: Blu Ray Color Space
on Oct 23, 2009 at 3:12:55 pm

SD and HD use different color spaces.

SD = Rec. 601

http://en.wikipedia.org/wiki/Rec._601

HD = Rec. 709

http://en.wikipedia.org/wiki/Rec._709



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stephan hill
Re: Blu Ray Color Space
on Oct 23, 2009 at 3:24:05 pm

thanks Alan,

this helps out a lot. but I still do not understand why if HD has a better color range do we color correct with NTSC tools like the vector scope or Waveform monitor that are NTSC.

I am an old Photoshop guy and I can't help but think it is like color correcting my ProPhoto RGB 32 bit color photograph with Proof Colors on to Generic RGB.



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Rafael Amador
Re: Blu Ray Color Space
on Oct 24, 2009 at 2:02:53 am

[stephan hill] "this helps out a lot. but I still do not understand why if HD has a better color range do we color correct with NTSC tools like the vector scope or Waveform monitor that are NTSC. "
Who say these are NTSC tools?
Then the people in PAL land we can not Color Correct?

What you need to color correct is a good monitor where you can change the color space depending of the stuff you are playing.
rafael


http://www.nagavideo.com


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