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Re: [Openexr-devel] On YUV support
From: |
Billy Biggs |
Subject: |
Re: [Openexr-devel] On YUV support |
Date: |
Tue, 2 Dec 2003 18:39:26 -0600 |
User-agent: |
Mutt/1.5.4i |
Drew Hess (address@hidden):
> We have a new release coming out any day now which defines some more
> channel names, esp. for specifying color spaces. Look for it next
> week.
Is this is in CVS too?
> Billy, re: your YUV comments, I tend to agree with you. The OpenEXR
> format doesn't require that files store linear intensities (though
> that's what applications expect for RGB triples, anyway), so "YUV"
> could be stored gamma-corrected 0-1. There might be a few advantages
> to using OpenEXR over PNG or other formats due to its ability to store
> channel attributes, but overall, yeah, there's no compelling reason to
> use OpenEXR for YUV. I don't know of an application that does,
> currently.
>
> There are also some new HD cameras which use log curves to encode HDR
> information in the signal, but whether these operate in some funky
> over-range YUV space or log-encoded RGB, I don't know. I'll try to
> find out.
Sounds great and makes sense, thanks.
-Billy