Re: Delta E question
Re: Delta E question
- Subject: Re: Delta E question
- From: Roger Breton <email@hidden>
- Date: Mon, 25 Jun 2007 21:57:11 -0400
Dick,
Terry's suggestion is excellent, right down to the NetProfiler comments.
Alas, those CGA Lab-Ref are certified using X-Rite's 938 or 530 technology,
not with GretagMacbeth instruments. When I read a Lab-Ref, here, with a
SpectroEye, I don't get good agreement with the certified numbers. But when
I use a 500 series instrument or a 938 or a 939, then all number agree with
each other to a close tolerance.
So, until CGA publishes Lab-Ref with Gretag traceable metrology, just
remember to take all your careful measurements with a grain of salt.
I'll let Danny Pascale handle how to check the accuracy of an EyeOnePro ;-)
> I would like to measure a color patch with my Eye-One and then come up
> with a delta E value by comparing my reading with someone else's
> readings of the same color patch.
>
> I have PMP 5.0.8 with the measure tool. I have a GCA Lab-Ref, certified
> by R. Hutchison. I would like to compare my readings of this target
> with their measurements in terms of a delta E. I cannot figure out how
> to do this via PMP. The purpose would be to serve as a check on the
> accuracy of my Eye-One.
>
> Any ideas?
>
> Dick Busher
Roger Breton
_______________________________________________
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