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Digital BW, The Print

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Re: [Digital BW] Re: Random musing on VM, profiling, and transfer curves - for Dave and Paul particularly...

2002-05-09 by Editor P.O.V. Image Service

CDTobie@... wrote:

>
> Now heres someone who knows the true difference between 2d curves and 
> 3d Look
> Up Tables! Always nice to find out someone is fluent in this stuff. 

Agreed!

> The added
> advantage of the 3d LUTs are for correcting localized variations
> (non-linearities) that can't be reached by any one channel. 

Which is EXACTLY why I was suggesting combining the curves with discrete 
profiles..  ;-)  I realize it breaks the rules, BUT we aren't talking 
about normal gamuts or color spaces either..  The gamut is so limited 
here that using a profile to force apart points along the profile (to 
add spread between values)  and to deal with media differences, while 
using the curves to provide a proper target hue may be a good interim 
approach..

Of course, the best approach would be custom profiles and  a monitor 
that showed perfect renditions of changes in hue perfectly while still 
properly limiting the on-screen gamut to match that of the ink profile..  

Even were that possible.

The problem is that looking for the subtle variations between Warm, 
Neutral, and Cold prints onscreen is likely to drive anyone crazy and 
certainly strain their eyes..

For that reason alone, pre-canned curves for each print temperature 
range are a good solution in my book.. My though with the profiles is 
just to bring those curves more cross-applicability.

Keith

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