Mailing Lists: Apple Mailing Lists

Image of Mac OS face in stamp
 
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: X-Rite iSis and dual measurements



Dana Rasmussen wrote:
sorry, I can't reproduce what you did and which difference you are
talking about. Can you please explain it again?

TIA,
Klaus
Using PMP on a paper that I know has optical brighteners (Epson Enhanced
Matte)
Measure the target and build a profile with UV Cut checked.
Do the same(starting completely over) with UV Cut No checked.
Take a look at your saved data using the compare function of Measuretool.
What I see is the exact same data in density.
Some differences in color.

Ok, now I got it, thank you.

Everything is in order: Density is measured relative to the paper and
roughly speaking it is a measure of the ink thickness. The iSis
basically "sees" the paper a little bit darker an more yellowish if
there is no UV in the light, but this has no practical bearing on the
densities: The paper color is mapped to D=0 in both cases, therefor you
won't see any essential differences.

Density is a measure to describe the technical state of a printing
process -- it is not useful to depict our perception.

Klaus


_______________________________________________ Do not post admin requests to the list. They will be ignored. Colorsync-users mailing list (email@hidden) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/colorsync-users/email@hidden

This email sent to email@hidden
References: 
 >Re: X-Rite iSis and dual measurements (From: Dana Rasmussen <email@hidden>)



Visit the Apple Store online or at retail locations.
1-800-MY-APPLE

Contact Apple | Terms of Use | Privacy Policy

Copyright © 2007 Apple Inc. All rights reserved.