I'm sorry Graeme, I'm a French speaking person and I don't fully understand
the subtleties of the English language. Very likely I didn't ask the proper
question for what I had in mind and or I didn't understand the answer.
"What is different is where the source gamut is coming from - i.e.
from the image rather than the colorspace."
Could this be interpreted to be that internally, when it's time to do the
gamut mapping portion of the work collink uses the gamut of the image
instead of the gamut of colorspace?
If that's correct, then I'm sorry again, just want to make sure.
As for the V4 profiles, I was thinking the other way around again, my
question should have been are there V4 compatible tools (out there) that
could be used especially with the image gamut like you do with collink. But
don't worry about that since I'll do my own profile in the near future using
Thanks for the suggestions on the spectrophotometer, I think I would go for
an I1 Studio probably, it should be plenty enough for my need and maybe even
a bit overboard. In the mean time, I wonder, if using a scanner would be an
improvement over using profiles made 5 years ago if not more and for inks
that are most likely not the same as when the profile was done and of course
some profiles I've seen have errors that show up as holes in the gamut if
not worst. I'm sure a scanner is not a spectrophotometer by far but I wonder
if it could be useful to some degree, if you could share your opinion on
this if only to convince me of not wasting time on this, I would appreciate.
From: argyllcms-bounce@xxxxxxxxxxxxx [mailto:argyllcms-bounce@xxxxxxxxxxxxx]
On Behalf Of Graeme Gill
Sent: Monday, November 12, 2018 5:54 PM
Subject: [argyllcms] Re: Image dependent ?
Yves Gauvreau wrote:
Q1 I'd like to have a better understanding of how collink does this, is it
You say above, using a large gamut space cause a lot of
compression, how does doing this with the gamut of the image reduces the
compression and is there a way to visualize this?
Q2 I have mostly version 4 paper profile for now, is there a way to usethem
somehow as shown here? A work around maybe?
I have an I1 Display Pro, I wonder if you would have a suggestion for a
spectrophotometer so I can do my own paper profiles, I know this makes 3