RE: Kodak Approval and ICC
RE: Kodak Approval and ICC
- Subject: RE: Kodak Approval and ICC
- From: Chris Heinz <email@hidden>
- Date: Fri, 10 Nov 2000 15:21:41 -0500
I sent the recent Approval thread to the product marketing manager, Bill
DeMarco, and asked him to write up his comments for the Digest. Here is
his post FYI....
The Approval is a halftone proofing device, and as such, has specific
requirements in order to maintain dot fidelity. Typical color management
techniques add dots where they will not print on press or remove values from
the 100% dot areas. This is unacceptable to most users of halftone proofing
systems.
One of the strengths of the Approval is that it is a measurable proof. The
reciever of the proof can evaluate the conditions under which the proof was
made. It is controlled by using dot gain and density, familiar color
management methods for printers and prepress houses.
Selective Color Edit is a method for fine tuning the Approval using the ICC
architecture. This method allows the use to adjust the color balance in
specific color areas without creating dots where they don't exist or
subtracting from the 100% areas. This is sometimes used by commercial
printers who prepare work for their own pressses.
Kodak has a great deal of expertise in color management and is one of the
founding members of the ICC. Many of the Kodak products have used color
management, both CMYK and RGB models. Kodak has a significant patent
portfolio in the area and has done significant work in the area of black
preserving profiles. We try to use the appropriate tool for the specific
task at hand!
Regards,
Bill DeMarco
Product Line Manager
Digital Halftone Proofing
Office: (716)742-5867
Mobile: (716)230-7372
Kodak Polychrome
Graphics
email@hidden
http://www.kpgraphics.com/products/DigitalProofing/Approval/5440/index.h
tml
CH Note: I will simply add that it is reasonable to use an ICC output
profile created for the Approval to color-separate images for accurate
perceptual matching of an original (as several people have alluded to in
prior posts). Bill's comments apply to CMYK retargeting to CMYK'. Most
of the relevant terrain was covered earlier in the thread, but I thought it
was appropriate to hear from the vendor. If anyone has questions or
comments, feel free to email me directly at email@hidden and I will
comment back. Tx.
.........................................................................
Chris Heinz Eastman Kodak Co.
email@hidden Kodak Professional Systems and Solutions
(V)(978) 323-7606 900 Chelmsford St MailCode: MC06352
(F)(978) 323-7680 Lowell, MA 01851 KMX/Knet 276-7606