in this sector, there are manly two guidelines: FADGI (American guidelines) and Metamorphose (from Nederlands). FADGI suggests Adobe1998, ProPhoto or ECIRGBv2 while Metamorphose only ECIRGBv2. I am not sure regarding the rationale of these choices.

So the first point is that ECIRGBv2 is the only one that is accepted from both.

I would like to use the large gamut of ProPhoto but because these master files will be 24-bit images (8-bit per channel) so using ProPhoto could result in posterization effects furthermore is not well established.

Adobe1998 would be quite a good choice because of its larger adoption, but in the case of manuscripts that have many red inks a larger gamut in the red I think could be beneficial.

Regarding the equipment, we are deciding between some scanners e.g. Metis DRS-13000 and Phase ONE cameras.

Let me know if you think there is something I have missed!

Thank you for your interest!

From: eci-en-bounces@lists.callassoftware.com <eci-en-bounces@lists.callassoftware.com> on behalf of edward taffel <etaffel@me.com>
Sent: Wednesday, March 18, 2020 4:18 PM
To: eci-en@lists.callassoftware.com <eci-en@lists.callassoftware.com>
Subject: Re: [ECI-EN] eciRGB_v2 space color for digitization of ancient manuscripts

On Mar 17, 2020, at 1:01 PM, Giacomo Marchioro <giacomo.marchioro@univr.it> wrote:

Hello,

I am a technologist at the University of Verona, I am implementing a workflow for digitizing the rare book collection of the Capitolare library in Verona. I am deciding which color space to use for the master files of the digitized manuscripts. I am trying to decide between Adobe 1998 and eciRGB_v2.

interteresting topic: what brought you to a decision between those two spaces, in particular? if i may ask, what type of equipment do you intend to use for capture?

regards,

edward

I would like to use eciRGB_v2 but I can't find the specification of eciRGB_v2 on ECI website, in particular how to convert RGB to normalized XYZ values, while the specification of Adobe 1998 is available online and seems more documented regarding these aspects.

I would like to ask you if eciRGB_v2 specifications are available for free? And if there are any documents or guideline for the adoption of the eciRGB_v2 in artwork digitalization projects?

Thanks a lot!

Best regards,

Giacomo Marchioro
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