Hi Michael
Fogra would measure against the Mcheck.it8 values
for the reference condition to certify a proof. This would correspond to the
characterization data in your case L 90.65 a -0.09 b 3.16.
In some integrated verification tools
however the measurement is automatically compared to the icc profile in
the relevant workflow.
I checked both the characterization data and ICC
profile I have for PSRgravureLWC and do not see the paper white differences you
see. In my case they are the same, only a very small rounding difference from
the software.
So my question would be how are you reading this
paper white point in the ICC profile ( what software etc) and is there a chance
this profiles white point has been edited in your case.
If you like you can send me the profile to compare
as I am not aware this difference exists. If it does I too would like to know
more.
Sincerely
John Panton
EFI/Fogra cert
Digital Distributors
Cape Town
----- Original Message -----
Sent: Wednesday, September 26, 2007 5:34
PM
Subject: [ECI-EN] PSRgravureLWC_ECI2002 paper white
lab
> Hi,
>
> Can someone explain to me why the
characterization data and the ICC profile for PSRgravureLWC have different paper
whites?
>
> ICC
profile
c0m0y0k0 = L 90.28 a -0.60 b 2.62
> PSRgravureLWC_ECI2002 c0moyoko = L
90.65 a -0.09 b 3.16
>
> What should be the correct target value
for spectrometer certification?
>
> Thanks,
> Michael van den
Heerik
> TJDR Cape Town
>
>
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