Re: Colorimetric Accuracy in the Field
Re: Colorimetric Accuracy in the Field
- Subject: Re: Colorimetric Accuracy in the Field
- From: Andrew Rodney <email@hidden>
- Date: Mon, 03 Jun 2013 17:27:11 -0600
On Jun 3, 2013, at 4:54 PM, Iliah Borg <email@hidden> wrote:
> A great deal of colour accuracy in needed in advertising business.
>
> Some field applications (like flower photography, minerals, etc. including for scientific needs) also do.
>
> If we are not given accuracy, what amount of inaccuracy are we given? How far it can go?
I don't think anyone here including Jeffery and Stanely would disagree. What we (I) keep asking for is a through explanation of what some parties keep calling Colorimetric accuracy. When Stanley talks about his goals and the work he does with museums, I get a strong idea of what he's talking about yet when I ask, I hear terms like matching what one 'remembers' one saw, affecting parts of an image manually because presumably that portion isn’t "colorimetrically accurate". We've been given no clear definition of what this means along with a number of fudge factors.
If I measure the illuminant and the scene, then I measure something in the scene, then reproduce those identical colors onto some device, is that colorimetric accuracy? And does it produce a match too?
Further, this idea of matching visually or remembering the colors of the scene, observer metamerism hasn't as yet even reared it's ugly head into the discussion.
I'm not suggesting what Ben and others are saying isn't correct or achievable pretty much because I have no idea what they are actually referring to hence my continued questions which haven't been addressed or I just 'don't get it'.
What is Colorimetric Accuracy in the Field and do you have to measure something in that field to know you got Colorimetric Accuracy in the Field? What about the scene illuminate which Tom did mention in his post? What's not considered Colorimetric Accuracy in the Field in terms of dE and how many samples does one have to look at to say we got Colorimetric Accuracy in the Field or we didn't?
Andrew Rodney
http://www.digitaldog.net/
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Colorsync-users mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden