Hi,

>Does LCMS do lightness mapping when using perceptual intent with 
>matrix/shaper profiles? ie is the result different when using either 
>perceptual or rel.colorimetric?

If profiles on both sides of transform are matrix-shaper, no mapping is done.
If the output profile has intents, then results may be are different depending 
on intent. 

Marti.



----- Original Message ----- 
From: "T E Schmitz" <[EMAIL PROTECTED]>
To: "Gerhard Fuernkranz" <[EMAIL PROTECTED]>
Cc: "Marti Maria" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
Sent: Friday, February 27, 2004 12:39 PM
Subject: Re: [Lcms-user] Gamut Warning


>>... so, this is why I say could be
>>interpreted as a rel. colorimetric plus black point compensation.
> 
> 
> Marti,
> 
> I think now I got it, what you actually wanted to say. If a perceptual
> intent transform is requested from a CMM in conjunction with a
> matrix/shaper profile, then the CMM could perform relcol+BPC.
> 
> Yes, I fully agree, this is pretty reasonable, since this will at least do
> lightness mapping.
> 
> Gerhard
> 

Does LCMS do lightness mapping when using perceptual intent with 
matrix/shaper profiles? ie is the result different when using either 
perceptual or rel.colorimetric?


-- 


Regards,

Tarlika Elisabeth Schmitz



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