Re: No More RGB/Taking a CMYK delivery on
Re: No More RGB/Taking a CMYK delivery on
- Subject: Re: No More RGB/Taking a CMYK delivery on
- From: Roger Breton <email@hidden>
- Date: Fri, 28 May 2004 18:25:37 -0400
Couldn't images have some kind of profile URL embedded in the XMP
metadata? The system you describe, Bruce, works OK for you but what
would you think of deploying such a system large scale in a publishing
house? Across the industry? There's got to be a better way. I realize
that CMYK profiles carry an hefty storage tag. And sprinkling thousands
of files with the same profile is inefficient at best. I"d rather have
one cetral profile location and all profile references disseminatd
accross all my images. That way if I need to update the profile it's
easily don -- I wouldn' t have to reopen and resave thousands of
images. It seems to me that what you're doing in your own private
archival system resembles strangley to the very idea of 'external
tagging', effectively keeping a link to the associated profile while
storing the profile outside the file, elsewhere. Couldn't that
mechanism be formelized as a solution? That way, CMYK images could be
exhanged without any profiles embedded, just a link to the profile that
a receiver could decide to honor or reject.
Roger Breton
On 28-May-04, at 3:59 PM, bruce fraser wrote:
At 11:17 AM -0700 5/28/04, Rick Gordon wrote:
OK. Let's take this example.
You've created a book with hundreds or thousands of images that you
have hand-tuned to CMYK using differing levels of black generation.
You've embedded profiles in the images so that you can easily manage
them for further editing, and have placed those images into many
different QuarkXPress documents with image update warnings turned on.
Rather than embedding the profile, I organize the images by project,
and simply keep track of the original profile that was used for
separation, either with the file name or by embedding the profile name
somewhere in the image metadata. Once I've converted the images to
CMYK, the different KGens are in the file, so I can use one single
profile to preview them correctly, and I just set my Photoshop working
space to that profile while keeping the images untagged. Hence there's
no need to strip or relink.
A second advantage of this approach is that you wind up moving a lot
less data around. In the kinds of books I do, images typically run
from about 800k to about 4MB of pixel data. The CMYK profiles run
around 2MB each, so if I have 1024 images, I'd be slinging around 2
gigabytes of redundant profile data. Not a huge issue for storage, but
a big one for transmission.
Bruce
--
email@hidden
_______________________________________________
colorsync-users mailing list | email@hidden
Help/Unsubscribe/Archives:
http://www.lists.apple.com/mailman/listinfo/colorsync-users
Do not post admin requests to the list. They will be ignored.
_______________________________________________
colorsync-users mailing list | email@hidden
Help/Unsubscribe/Archives:
http://www.lists.apple.com/mailman/listinfo/colorsync-users
Do not post admin requests to the list. They will be ignored.