Hello,
Interesting that you raised this subject. I had been discussing this
issue a few times recently. I am curious to see if someone can show me
the benefits of using this space. My opinion up to now has been that it
often adds an extra step in the workflow, hence complicating, without
providing any tangible benefits. It is currently not automatically
installed with most DTP apps, or RIPs, if any, which increases the
possibility of profile mismatch somewhere down the line in production,
for example, in Photoshop. I don't know of digital cameras of scanbacks
that by default support this space either. We generally work with
ProPhoto and AdobeRGB 1998.
Best regards.
Darrian Young
-----Mensaje original-----
De: eci-en-admin(a)lists.transmedia.de
[mailto:eci-en-admin@lists.transmedia.de] En nombre de Jo Brunenberg
Enviado el: lunes, 08 de diciembre de 2003 11:19
Para: eci-en(a)lists.transmedia.de
Asunto: [ECI-EN] ECI-RGB / Any advantages?
CONCERNING: ECI-RGB / Any advantages?
At a recent meeting I heard that the application of the ECI RGB ICC
profile would result in a better grey balance.
I made a number of tests on this subject but did not find any proof for
this statement.
See test description and results below.
Could anyone explain to me in which workflow it could be advantageous to
use the ECI RGB ICC profile?
Thanks for any comments!
Best regards,
Jo Brunenberg
Senior technology consultant Prepress / ICT
LOGIC USE BV
member of Roto Smeets
--------------------------------------------------
Test description
- Test image: TC 2.88
(RGB target with colors covering complete RGB colorspace, including
neutral greys, saturated and pastel colors etc.
- I made the following versions of this file:
1. assigned sRGB
2. assigned Adobe RGB
3. assigned ECI RGB
4.assigned a scanner-RGB
5. converted to profile: sRGB
6. converted to profile Adobe RGB
7. converted to profile ECI RGB
Next step: All 7 RGB-files were
A) converted to profile (CMYK) with profile ECIwebcoatedsb.icc
B) converted to profile (CMYK) with our custom web offset profile
Next step: All files were proofed on IRIS
A) with profile ECIwebcoatedsb.icc
B) with our custom web offset profile
Results:
- No differences in grey balance between A and B
- No differences in grey balance between all 7 versions on proof A and B
- Only the following differences between A and B:
- Some more color saturation in proof A
- Some more shadow detail in proof A
These last two observations can be explained by the fact that the ISO
profile (printed on a sheet-fed press) has a larger color space compared
to our custom profile. (printed on a web press).
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