What's it REALLY all about?
What's it REALLY all about?
- Subject: What's it REALLY all about?
- From: "Cedric Briscoe" <email@hidden>
- Date: Tue, 20 Jul 2004 18:39:01 -0400
C M Y K
0.00 0.00 0.00 0.00
0.00 0.01 0.00 0.00
0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.01
0.01 0.00 0.00 0.01
0.01 0.00 0.00 0.01
0.01 0.01 0.00 0.01
0.00 0.01 0.01 0.01
0.00 0.01 0.00 0.01
0.00 0.01 0.00 0.01
0.00 0.03 0.01 0.00
0.01 0.03 0.01 0.01
0.00 0.03 0.03 0.02
0.00 0.02 0.02 0.04
0.01 0.02 0.01 0.05
0.00 0.01 0.01 0.00
0.01 0.00 0.06 0.01
0.03 0.01 0.08 0.03
0.01 0.01 0.06 0.01
0.00 0.00 0.00 0.00
The data above is the difference between some target densities and actual
measured densities for a proofer. To my AMAZEMENT, if you take the time to
do a Linearization multiple times (each on top of the previous Lin.) up
until the numbers start to reverse or the lowest difference has been
achieved, YOU will be amazed at what this does to the Gamut Volume of the
resulting profile that is built on top of this Linearization. (Assuming you
have already addressed (TIL))
Some time ago I built a profile on Best 8180 paper (just under $600 a 44'
roll) on an Epson 9600UC at 1440x720 and this profile has always been my
reference for largest Gamut. I just created a profile at 2880x1440, which
USUALLY yields a slightly smaller TIL and gamut volume. In this case, the
gamut was SO MUCH larger than my Best 8180 Reference, it was almost scary.
On top of that, the ink densities were restricted to be inline with Offset
Printing (just slightly higher).
We all know that a profile built on top of an unlinearized device will yield
no go good results and in the middle is an OK Linearization; but at the
other end of the scale is a 'close to perfect' Linearization. And the
latter, will make a profile POP!
My point being, "It is Sooooo ALL about the 'Linearization'. [and limiting
it to one round is stealing a lot of the goodness."
(Now let me see what's going on at the bottom of my Yellow curve)
Technical footnote: my Best 8180 reference profile was built with
MonacoPROFILER 4.6.1 with a 2989 Patches target and default black gen. for
Inkjet Printer. The above mentioned profile was built with ProfileMaker 5 w/
3680 patches (custom target) and default Black gen for Inkjet Printer. Very
comparable settings.
Cedric Briscoe
Treetop Publishing, Inc.
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