Re: CGATS text file from a profile
Re: CGATS text file from a profile
- Subject: Re: CGATS text file from a profile
- From: Steve Upton <email@hidden>
- Date: Fri, 18 Mar 2011 10:49:10 -0800
At 3:43 PM +0000 3/18/11, Eric Nunn wrote:
>Well I certainly agree with you, but I thought when I read Steve's reply in the earlier post that I had missed something... looks like I misunderstood the context.
>But you never know, one day...
right. well, it's true. The technique of editing the white point would not help in your use case.
If the printing characteristics of the paper were exactly the same and only the color was different, editing the white point *would* help in the proofing scenario. But you see, in the proofing scenario expects that the CMYK has already been produced (likely with a different profile) and something like gray balnce might not look right on the new paper color. This would be a reasonably accurate prediction of the gray balance problem that would occur when printing the file's separation on the new paper.
Here's an idea. I don't know if this will have any effect but it's worth a try:
- modify the white point of the profile in question. For this test, it's probably doing a fair sized color shift.
- using a tool like ColorThink, proof an IT8's worth of CMYK values through the profile using the abs col intent. This will "create" a profiling target's patches as if it were printed on the new paper
- generate a profile from the new data
- test the separations the profile creates to see if the gray balance @ Lab-50,0,0 and the ink solid colors are different.
I'd be interested to hear your results.
Regards,
Steve
________________________________________________________________________
o Steve Upton CHROMiX www.chromix.com
o (hueman) 866.CHROMiX
o email@hidden 206.985.6837
________________________________________________________________________
--
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Colorsync-users mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden