Re: DICOM curve with spectraview
Re: DICOM curve with spectraview
- Subject: Re: DICOM curve with spectraview
- From: Roger Breton <email@hidden>
- Date: Sat, 05 Apr 2008 07:08:05 -0400
But if we do chose a monitor calibration to match the RGB "gamma" or
transfer function we mostly work with, aren't we making our system less
device independent?
What about CMYK? If we use brandX CMYK more often, would you chose a monitor
calibration to match the flavor of CMYK we mostly work with?
Probably not but I read opinions on other lists that CMYK have "inherent"
supposedly "natural" or "logical" TRC? I know it sounds crazy to say that
"sheetfed printing" has a gamma of 1.8, at least on the face of it.
MfG,
> Generally any curve is acceptable, becaus color managed applications
> compensate for the calibration curve in the monitor profile.
> If you want to do it absolutely right, you calibrate your monitor to
> the exact tone curve of your RGB data. This ensures that the color
> management system does not have to transform the tone values, which
> in an 8bpc system would result in a (potentially visible) loss of
> tone values.
> So, if you mainly work with AdobeRGB files, calibrate to a gamma of
> 2.2, if you mainly work with sRGB diles, calibrate to the sRGB tone
> curve (which is NOT gamma 2.2), if you work with eciRGB_v2 (or a mix
> of the above mentioned) files calibrate to L*. IF and only IF you work
> with DICOM (medical) files, calibrate to the DICOM curve.
>
> Best regards,
>
> Karl Koch
> basICColor GmbH
Roger Breton
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