Re: Device link profiles
Re: Device link profiles
- Subject: Re: Device link profiles
- From: Steve Upton <email@hidden>
- Date: Mon, 8 Nov 2004 14:42:44 -0800
At 3:41 PM -0500 11/8/04, Roger Breton wrote:
>Mark,
>
>> Since device link profiles are new to me, my question is this: How does
>> one softproof in Photoshop using a device link?
>
>Good question. I believe there are some tools, ColorThink maybe (?), which
>allows extracting an ICC profile out a device link. But I'm not 100% sure.
>If it would, I believe you'd end up with two profiles each with only half
>the normal content of an ICC profile.
Once device line profiles are created, about 80% of the original profiles is thrown away (more correctly, not included in the new profile). So there is no way to reconstruct the original profiles from a dev link.
The one exception is profiles built with Link-O-Later as Left Dakota embeds the original profiles into private tags. We're planning on allowing people to extract those profiles in ColorThink.
>At any rate, a device link is a concatenation of two profiles, CMYK to CMYK
>or RGB to CMYK or RGB to RGB. So it's a straight table that maps one device
>onto another. By definition, it lacks the data structure to be used for
>softproofing in Photoshop. That's probably why PS does not support them.
right, well, it's one reason. That and they would not be used in any place except convert to profile. There, they could be use (and hopefully will someday)
Regards,
Steve
________________________________________________________________________
o Steve Upton CHROMiX www.chromix.com
o (hueman) 866.CHROMiX
o email@hidden 206.985.6837
o ColorGear ColorThink ColorValet ColorSmarts ProfileCentral
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