Dear Michael,
your screenshots shows that you are using the relative colorimetric rendering for checking
the black generation curves. Remember relative colorimetric and absolute colorimetric are
intended for proofing and it is normal that with those RIs (Rendering Intents) you will
either see flat curves or reverse curves in the out-of-gamut regions of a profile, e.g.
dark shadows going to L*=0. You either need to use the perceptual or relative+black point
compensation RIs to check if there are detail losses and then you won't see the flatt
curves any more. So you statement that the basiccolor profiles are inferior to the
Heidelberg profiles is not correct.
Best regards
Dietmar Fuchs
Am 29.10.2014 um 16:17 schrieb Michael Sartakov <msartakov(a)gmail.com>om>:
Hello, Karl!
Thank you for links.
You can also try the ready-made standard profiles
from
www.colormanagement.org.
I sample GCR-profile based on fogra39 from this, it
is inferior in
quality to the profile of Heidelberg PrintOpen (now Color Toolbox),
comparison in attachment or this:
http://rudtp.pp.ru/forum/download/file.php?id=552&mode=view
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