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