Re: Re(2): [ECI-EN] ECI-RGB / Any advantages?
11 Dec
2003
11 Dec
'03
12:14 a.m.
On Dec 10, 2003, at 4:01 PM, Olaf Drümmer wrote:
Hi Chris,
lists(a)colorremedies.com wrote Wed, 10 Dec 2003 15:34:15 -0700
It is very helpful. But not many people do this. The implication here
is that wide gamut RGB takes a certain level of sophisticated user who
is aware of these kinds of issues, including the benefit of using soft
proofing to the lowest PRACTICAL denominator for an image to ensure it
will not posterize.
I do not think that this is a huge potential problem for those
considering ECI RGB, so long as the potential problems are disclosed
the workarounds are rather straight forward.
But I
think people must be very careful when enhancing images in wide gamut
spaces, including Adobe RGB. It is possible to enhance images in these
spaces to the point you will get disastrous CMYK conversions if the
image contains large amounts of important, fine, saturated, and out of
print gamut detail. It simply gets obliterated in the conversion.
Smaller spaces don't have this problem because you can't enhance the
image so far out of the CMYK gamut.
from your experience - how helpful do you think is turning on
softproofing (aiming at some press profile that at least comes close to
the printing process that's going to be used later on in production) in
Photoshop while 'working on an image' (whether in Adobe RGB or eciRGB)? Is the onscreen preview good enough to make the user
aware of problems
she may be running into later on when the image will get separated?
So long as they use a reasonable soft proof destination - one that is
the most susceptible to the problem, but one that they would still
possibly output to (i.e. no point in soft proofing newsprint if the
image will never target newsprint; but if it might go to magazine then
it should not be soft proofed and edited based merely on an epson
9600). Zum Beispiel.
Chris Murphy
Color Remedies (TM)
www.colorremedies.com/realworldcolor
---------------------------------------------------------
Co-author "Real World Color Management"
Published by PeachPit Press (ISBN 0-201-77340-6)