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Posted: 8/14/2010 4:38 PM
Post subject: Re: Independent tests
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Aktan
Publisher
Joined: 4/23/2009
Posts: 1283
Raiscan wrote:
Guess I'll be using Area when possible from now on.
Of course, if you capture directly to H.264 lossless, you already missed the chance =p. Sorry, just had to taunt you.
Posted: 8/14/2010 4:59 PM
Post subject: Re: RGB and YUV conversions
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rhebus
Joined: 2/19/2010
Posts: 248
Warp wrote:
Bisqwit wrote:
YUV can express colors that are not possible to express in RGB.
This is a complete nitpick because I and everybody else knows perfectly well what you are talking about, but since I love nitpicking, let me correct that statement a bit:
The statement needs no correcting. YUV and RGB are both non-absolute colour spaces, so neither has a defined gamut. YUV is defined in terms of RGB. Any given YUV has a larger gamut than its RGB by definition. If you use a particular absolute implementation of RGB (say, sRGB) then the associated YUV will have a larger gamut.
Posted: 8/15/2010 5:08 AM
Post subject: Re: RGB and YUV conversions
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Warp
Banned User
Joined: 3/10/2004
Posts: 7698
Location: Finland
rhebus wrote:
The statement needs no correcting. YUV and RGB are both non-absolute colour spaces, so neither has a defined gamut. YUV is defined in terms of RGB. Any given YUV has a larger gamut than its RGB by definition. If you use a particular absolute implementation of RGB (say, sRGB) then the associated YUV will have a larger gamut.
Even if that's so, there are probably no practical consequences once you get to brightnesses rivaling that of the core of the Sun (which is probably achievable by colorspaces which use floating point).
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