Digital BW, The Print

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Peter" 
<spamme2001@m...> wrote:
> Thank you to everyone who replied to my message -- this is exactly 
> the discussion I was hoping for. 
> 
> For a variety of reasons I've decided that I'm not prepared for all 
> the control a RIP will provide, but I'd still like the ability to 
> tweak an existing profile to account for variances in paper batches 
> or the unique characteristics of my printer, for example. About a 
> year and a half ago I used the Curves Template located in the Files 
> section 
> (http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint/files/Ima
> ge%20Processing/) to create a Photoshop adjustment layer but I 
> believe this spreadsheet does a strictly mathematical linearization.
> 
> I'm hoping to do something similar (i.e. measure the density values 
> in a stepwedge, compare to some Aims and make an adjustment curve) 
> but would like to account for perceptual issues. I'll see what I can 
> figure out with the Bruce Lindbloom calculators.

I don't know if this is really what you want, but I have a table of
my "ideal" densities for the 21 steps given a dMax.   It's in my
QTR download under CurveDesign, the file is called ideal_density.pdf

If you'd like, email me and I'll email the pdf to you.

Roy

> 
> Thanks again for your insight (and if you have any hints, I'm all 
> ears!).
> 
> Peter.
> 
> 
> 
> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Peter" 
> <spamme2001@m...> wrote:
> 
> > Is linearization supposed to be determined strictly 
> > mathematically or is there some element of perceptual 
> > linearization involved?