Re: Photoshop CS4 and DeviceLink profile
Re: Photoshop CS4 and DeviceLink profile
- Subject: Re: Photoshop CS4 and DeviceLink profile
- From: Louis Dery <email@hidden>
- Date: Tue, 2 Dec 2008 08:58:17 -0500
Hi Karl,
Thanks for the good article!
So you came up to the same conclusion as I have.
About the limitation of Photoshop CS4 to handle properly DeviceLink
and nColor profiles, we also came to the conclusion that something
need to be done! …
Louis Dery
On Dec 2, 2008, at 2:42 AM, Koch Karl wrote:
DeviceLink Profiles
As indicated by the name, a device link profile describes a direct
conversion from one device color space to another one, without
going through PCS. The pros and cons of device link profiles are a
subject for a separate article, only that much: Device link
profiles can improve the quality of a color transformation compared
to the usual profile conversions and they can do useful things like
keeping black as pure black.
So, it´s a good thing that Photoshop can finally handle device link
profiles! The bad news is: They goofed it up! When applying a
device link, the image seemingly remains in the original color
space since the assigned profile remains the same. only after
assigning the destination profile, the image is displayed correctly
and can be retouched or converted again correctly. (Image 5 after
device link conversion, image 6 after assigning the correct
destination profile).
That you can only convert from RGB to RGB or from CMYK to CMYK, but
not from RGB to CMYK or vice versa, doesn´t help things either.
Conclusion
While supporting additional types of profile conversions in
Photoshop 11 (and only here, not in InDesign or Illustrator) is a
commendable undertaking, it is still in its infancy and leaves room
for improvement. For serious dealing with device link profiles,
products like basICColor demon are still indispensable. Encouraged
by the sloppy implementation of the "new" profile conversions,
basICColor GmbH decided to expand the functionality of demon even
more. The software will offer a correct handling of abstract
profiles in Photoshop as well as in all other programs that allow
for selecting an OS-based CMM, as it does with device link profiles
already.
Best regards,
Karl
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