Message
Re: [colorvision_group] High quality target for CD/DVD printing
2008-08-14 by CDTobie@aol.com
In a message dated 8/14/08 12:40:52 PM, laurie@... writes:
>The default intent (which is seldom actually perceptual) is often put in the perceptual slot, and used for all conversions if the >conversion is an XYZ based conversion, instead of a Lab based one, in other words for source profiles, instead of printer >profiles.
Not be argumentative, but I am not sure that I get your suggested meaning here. What do you mean by its not being “actually perceptual?” What is “actual perceptual” and is there a commonly accepted standard for defining that?
Perceptual is typically defined as being mapped or compresses in such a way as to create a pleasing, not literal, result. The data typically put in an XYZ profile's Perceptual slot does not meet that definition. Its put there, not because its perceptual, but because thats the slot where data is typically retrieved from. I note all of this simply to point out that the information commonly included in color management sections of end user guides and books tends to have a simple description of intents and conversions, and users tend to be unaware that this really only has to do with printing, and that there are other places where profiles (and potentially intents) can be selected, where these descriptions do not really hold true. The WCS control panel may well be such a place... I really can't say.
C. David Tobie
WW Product Technology Manager
Digital Imaging & Home Theater
Datacolor
CDTobie@...
www.datacolor.com/Spyder3
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