Digital BW, The Print

Steve,

It seems that the look of 'Simulate Paper White' is a combination of the 
reverse profile and of Photoshop's treatment of it (as described in my 
previous post). I checked again with my old ProfilerPro manual and it 
clearly says that editing of the black and white points for softproofing can 
only be made before the profile is made from the raw measurement data, and 
from what David Tobie said once, I got the impression that the reverse 
profile was made with these new white and black points instead of with the 
ones read off the paper. The ProfilerPro dialog gave you two boxes with the 
actual white and black points read from the data, and asked if you wanted to 
edit these. It then made the profile, and these edited points were 
incorporated into the reverse profile for softproofing, but not into the 
normal profile for printing. I understand that some of the better profile 
editors also allow more extensive editing of the reverse profile for 
softproofing to get a better match, without changing the normal printing 
profile.

Bob Frost.

----- Original Message ----- 
From: "Steve Kale" <stevekale@...>
To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
Sent: Monday, October 24, 2005 9:21 PM
Subject: Re: [Digital BW] Create ICC Soft Proofing question . . .


I don't know for sure but it should simply read the wtpt tag in the profile
and then map monitor white to that media white.  There is no "amount of
simulation tag" that I am aware of so I suspect ProfilerPro simply edited
the wtpt tag or something similar.  It's not part of the LUTs and so editing
wtpt may not affect anything else.