Digital BW, The Print

In a message dated 11/13/06 5:16:21 AM, joemulligan_68@... writes:


> I've seen C. David Tobie mention that the new Print Fix Pro 2.0 has a 
> function where the
> printer has the option to blend to paper white.  I want to ask what is the 
> exact definition of
> this. 
> 

In PrintFIX PRO 2.0 the software does what it thinks is best automatically, 
via one of two algorithms: Paper Relative Grays (the default choice, where the 
grays are based on paper white) or Absolute Grays (a checkbox option, where 
the paper tone is not factored into gray definitions). If the Paper Relative 
Grays function does not give you just what you want, for the grays you are using, 
or the way your paper appears under your lighting, you can adjust the way 
grays (and other tones, but grays are most picky) ramp to white, by adjusting 
sliders that bias the tint near white, and taper off as tones get darker. 

There are three of these tinting sliders (since you are working in RGB 
space), and some amount of adjustment to one, or to two of them should result in the 
tonality you want. This will, theoretically, be previewable in our 
PrintPreview screen after building the adjusted profile, but I find paper white effects 
to be the least effective part of softproofing, so I suspect you will want to 
print the B&W test image to see if the profile now has the highlight tint you 
are looking for.

C. David Tobie
Product Technology Manager
ColorVision Business Unit
Datacolor Inc.
CDTobie@colorvision.com
www.colorvision.com


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