Digital BW, The Print

Actually 256 steps might not even work. You'll definitely get some 
noise/random errors in the measurements that might very well be 
larger then the differences in the steps. The QTR linearization 
algorithm expects a monotone series of numbers. Even if the steps 
are not large enough the algoritm can complain, as a experienced 
recently.  

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Steve Kale 
<stevekale@...> wrote:
>
> 256 is likely huge overkill.  Even my 101 steps is.  Happy to 
email you it
> if you want.  You can make your own using a text editor and 
Colorlab (a free
> download from Gretag Macbeth)
> 
> 
> 
> From: Walker Blackwell <wblackwell@...>
> Reply-To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
> Date: Tue, 19 Sep 2006 15:39:27 -0000
> To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
> Subject: [Digital BW] 256 Gray Random Target for QTR
> 
>  
>  
>  
> 
> Hey everyone. I'm wondering if anyone has a random 256 Gray target
> file for creating a QTR lin and also if that even works (256 that 
is).
> I guess I can make one with TextEdit but that would take a 
while . . .
> 
> thanks, Walker
> 
>  
>     
> 
> 
> 
> [Non-text portions of this message have been removed]
>