Digital BW, The Print

I don't have the answer.  Personally I do not know why one would want to
check paper colour without ink black anyway but then the man has the right
to ask and I do believe he mentioned it was possible on earlier iterations.
Personally, I am very happy with things the way they are and this is all
just intellectual curiosity.  I posted a question pertaining to this on the
Adobe Colour Management Forum and I'll let people know of any feedback I
receive.

FYI the QTR ICC profiles only have one rendering intent - perceptual.  There
are no A2B2/B2A2 or A2B1/B2A1 tags.  In addition, Roy seems to only use the
Out Curve part of the A2B0/B2A0 tags which would make sense as an easier
application because we are just applying transfer curves.  I have never seen
a colour profile use this portion of the tag.  I fully admit I only
scratched the surface when it came to understanding the application of these
tags.




> From: Bob Frost <bob@...>
> Reply-To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
> Date: Wed, 26 Oct 2005 10:32:52 +0100
> To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
> Subject: Re: [Digital BW] ICC Soft Proofing -- The issue . . .
> 
> Steve,
> 
>> The point Walt was making is that he would like to check paper white
>> without checking ink black.
> 
> But he can't because Absolute Colorimetric rendering (as in Simulate Paper
> White) doesn't use BPC. That only comes with Relative Colorimetric rendering
> (with Simulate Paper White off), where you can turn it on or off.
> 
> Bob Frost.
>