Digital BW, The Print

In a message dated 1/13/07 3:22:20 PM, jlcreed@... writes:


> What is the opinion of folks with regards to the Lab a and b values
> that should be strived for when producing a neutral curve?
> 
> I've been playing around for a good few days now trying to produce a
> neutral curve, and seem to be going around in circles at the moment,
> with values within plus or minus 0.5 for both Lab a and b; are these
> figures considered OK or should I continue with more iterations?
> 

Negative a* values give an unpleasant green look, even at fractional values, 
so you would probably want to err to the positive for a*; b* is a matter of 
preference, paper tone, and lighting. Its difficult to get things much tighter 
than fractional a/b values...

C. David Tobie
Product Technology Manager
ColorVision Business Division
DataColor Inc.
CDTobie@...
www.colorvision.com



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