QTR-Quadtone RIP

Tyler Boley wrote:
> --- In QuadtoneRIP@yahoogroups.com, Ernst Dinkla <E.Dinkla@...> wrote:
> ...
>> Again, there's more to gain in my opinion with multiple 
>> readings of more random linearisation targets that are 
>> printed at two angles to the print direction and building 
>> the linearisation on the average of the measurements. Same 
>> for the QTR profile.
> 
> Ernst, I have no experience on this matter specifically, but thought
> you might find this interesting. When some of us met Bill Atkinson, he
> had done exhaustive tests with regard to measurement. His findings
> were that series of readings with the least possible difference from
> one patch to the next gave consistently more accurate results than
> random patch strips. So he ordered his charts accordingly.
> Of course this was for color profiling, and large charts, and I
> suspect the differences were small, but there you are for what it's
> worth...
> Tyler

Tyler,

I'm sure that David has nice automatic equipment that may 
read the targets patch wise and he started making his 
excellent profiles for Epson 9600's with some support from 
Epson (read: well calibrated printers). Not linearising with 
a  manual Spectrocam the customised Epson 9000 made for dye 
inks loaded with third party quad inks :-)

-- 
Met vriendelijke groeten, Ernst


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