[argyllcms] Misc questions about color management

Hello,

I have some questions, not all in direct relation with argyllcms project, 
but I don't know where to post (feel free to redirect me on a the 
appropriate list/forum), and I'm sure you have the answers ;o)

1) Is it possible to measure the white level of a monitor, in cd/m2 (is it 
what is calles IRE ?) with argyllcms tools ? Is it also possible to have a 
direct read of the white color temperature ?

2) Does it exist a tool like iccexamin, but which is able to show several 
ICC profils (2D or 3D) at the same time ?

3) How do I "tag" a jpeg or tiff file with a specified colorspace ? Where is 
this information stored ? EXIF "colorspace" field for jpeg ?

4) My Canon 20D camera is able to use AdobeRGB98 or sRGB colorspace when 
converting to jpeg. This can also be done outside when shooting in Raw. In 
both cases, what does it mean ? I suppose that 20D colorspace is neither 
AdobeRGB98 nor sRGB. So, how is converted the Raw file, say to AdobeRGB98 ? 
Do prgrams (inside or outside) consider that sensor values *are* in 
AdobeRGB98/sRGB colorspace ?

Thanks for your help.

-- 
   Frédéric

   http://www.gbiloba.org

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