Re: [ECI-EN] ECI-EN Digest, Vol 53, Issue 3
by Paul Sherfield
Thanks Karl
You took your words out of my mouth as I was about to reply :-)
I have used the Basicolor CMYK profiles, including the Fogra 39 based ones
and can confirm Karl's claims.
In many areas including saturated reds and blues where the ECI profiles
produce, for RGB blues, a violet result, and the reds; too orange, the
profiles show a better 'separation' to CMYK from RGB images with profiles
such as Adobe RGB and ECI v2.
And as Karl said, there is no 'official' ISO profile, even the Fogra data
sets, (thank you Fogra) are not official.
You could produce your own by running a press to precise ISO 12647 numbers,
with a ECI 2002 chart and produce your own data set and profiles from the
printed sheets.
Regards
Paul Sherfield
The Missing Horse Consultancy Ltd
Telephone : 00 44 1442 207626
Mobile: 00 44 7899 906385
Fax: 0872 111 7709
http://www.missinghorsecons.co.uk
Follow us on: Twitter.com/missinghorse
Apple Solutions Expert - Print & Publishing
Member - UK TC130 Technical Advisory Group (ISO 12647 Printing Standards)
UK Expert: ISO TC130/Working Group 13 on certification of printing
standards
Chair BPIF UK ISO 12647 Certification Steering Group
Member - BPIF Technical Standards Committee
Lean and green?
To save money and become a greener printer, see
http://www.greenprinter.co.uk
http://www.keeconsultants.com
Reduce your carbon footprint
http://www.1010uk.org
This email and any attachments may be confidential and are intended solely
for the use of addressee. If you are not the intended recipient of this
message, any disclosure, copying or other distribution is strictly
prohibited and may be unlawful.
If you have received this message in error, please notify the sender and
delete all copies from your system. Email may be susceptible to data
corruption, interception and unauthorised amendment.
We do not accept liability for any such corruption, interception or
amendment or the consequences thereof. We do not accept liability for any
action or inaction by the recipient as a result of advice or information
contained within this email.
12 years, 6 months
- 1
- 0
Coated FOGRA39 vs. ISO Coated v2
by Vitor Pedro
Good afternoon, I am a student of color management in Portugal and would like to ask the following question:
- If the ISO Coated v2 Profile is based on FOGRA39, how can we explain the large differences obtained in the conversion of primary and secondary colors from Adobe RGB, as we can see in the PDF attachment that I did myself?
- In general, in the Adobe programs, the profile used to meet the standards is the Coated FOGRA39 (ISO 12647-2:2004). It would be assumed that the ISO Coated v2 will produce the same result, but it does not. Why? This is normal? It seems to me that the principles of ICC Color Management are not working here, or am I to do some confusion or something wrong?
Thanks for your help.
Vitor Pedro
12 years, 6 months
- 4
- 3
Re: [ECI-EN] Coated FOGRA39 vs. ISO Coated v2 (Vitor Pedro)
by Nagy Péter
Hi Vitor,
what you're experiencing is not the fault of ICC colormanagement, but the Adobe color profiles. Their A to B direction (going from RGB to CMYK) is not really perfect at all. They're there in all Adobe applications, but IMHO they're useful only in the B to A direction (mainly for display/rendering purposes).
For such a comparison you'd like to do, two ICC profiles which are proven to be production-ready, would be much more interesting. I suggest you to make a comparison between the stock ISO Coated v2 (ECI) published by ECI, and the one compiled with basICColor's profiling engine. You can download the latter from http://www.colormanagement.org/en/isoprofile2009.html
Kind regards,
Peter Nagy
Colorcom Media
Budapest, Hungary
12 years, 6 months
- 3
- 2