Re: A discussion on accurate color ...
Re: A discussion on accurate color ...
- Subject: Re: A discussion on accurate color ...
- From: José Ángel Bueno García <email@hidden>
- Date: Sat, 28 May 2011 16:32:25 +0000
Eric:
El día 28 de mayo de 2011 13:18, Eric Chan <email@hidden> escribió:
> Jose, ACR/LR does perform internal color transforms as needed to carry out its various image processing routines (e.g., noise reduction, vibrance, etc.). However, this is all done internally and has no real connection to the user-specified color space of the rendered output file (e.g., sRGB, Adobe RGB, etc.).
>From ISO 22028?
>
> The camera profiles produced by DNG Profile Editor and other software (e.g., X-Rite's ColorChecker Passport) are responsible for transforming the camera-native image values (e.g., the primaries determined by a sensor's color filters) to RIMM. At least a color matrix is required, but other components (such as optional lookup tables and a tone curve) can be included, too. This is largely independent of the other internal color transform described in the previous paragraph.
And the only thing I miss from both pieces of software is more
information about the quality of the profiles.
And a re-read of "Fundamentos de Colorimetría" clarified to me the Tom
Lianza´s comment.
>
> Cheers,
> Eric
Thank you Eric
Salud
Jose Bueno
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