Digital BW, The Print

This is a neutral curve I've made for Photo Rag:

http://home1.gte.net/res09aij/Curves_220_HPR_N_MHW_CC.jpg

I centered the 50% point, but it warmed up a bit.  I rolled the highlights
and shadows off to the paper white and dark shadow, respectively.  (How much
one would want to adjust these points is a bit subjective, but it's
adjustable.)

The Lab values (L, a, b) of the print, after a few hours of drying, from
paper white to dmax, are as follows:

97, 1.1, .18;

75, .24, .13;

50, .02, .08;

75, .69, 1.4;

16, .25, .89.

The curve by itself prints with the driver set to Color Controls.  As such,
some fine tuning with those controls is also possible.

The curve has been embedded into an ICC with Roy's Create ICC program.

As the system develops, I'll post both the ICCs and the curves so that
others can modify or re-use the curves and linearize their own systems
without the need to make a new curve.

Paul
www.PaulRoark.com 



> -----Original Message-----
> ..On Behalf Of Paul Roark
> Sent: Monday, February 06, 2006 8:47 PM
> 
> 
> This is a preview of my latest effort at an inkset for B&W printing.  
> It is an evolution of the UT7 inkset, with a new cool toner and 
> the sepia replaced by a toner that lies on the Lab a* axis 
> (with Photo Rag and Ultra Smooth at L 50).  So, we have a true,
> if minimalist, "color" space - ...
> I've posted "picture" of the space at L 50
> on Photo Rag at http://home1.gte.net/res09aij/UT6_Space_PR.jpg
>...