Re: LAB as working/interchange space
Re: LAB as working/interchange space
- Subject: Re: LAB as working/interchange space
- From: ross lists <email@hidden>
- Date: Thu, 31 May 2001 17:56:36 +0100
Hi,
If I open a file that has CIE Lab values in photoshop there is no dialog box
asking about conversion. Presumably this means that the CIE Lab file has
been opened into ICC Lab. So are the values correct?
I am trying to use the values from a Macbeth Color checker to get an idea of
colour shift in a workflow including digital cameras. I have been using a
file from the internet which has the checker colours in Lab not sure which,
how do I find out.
If ColorBlind is measuring in CIE Lab do the measurements relate to Lab
values in Photoshop?
I thought I had a reasonable handle on this, but apparently not. Are there
any books relating to the subject which any of you could recommend.
Thanks
Ross
--
Ross Kerridge
Imaging Systems Director
Photolink
http://www.photolink.co.uk
--
>
From: Chris Cox <email@hidden>
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Date: Wed, 30 May 2001 14:06:01 -0700
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To: email@hidden
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Subject: Re: LAB as working/interchange space
>
>
At 1:50 PM -0700 5/30/01, email@hidden wrote:
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> Message: 5
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> Roger Breton wote:
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>>> So there are "CIE" Lab and "ICC" Lab. Different encodings. OK. How about
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>>> Photoshop's own Lab? Which flavor of Lab is it exactly? Apart from the fact
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>>> that everyone knows that it is D50/2?
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>
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> To which Chris Cox replied:
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>> Photoshop uses ICC LAB.