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QTR-Quadtone RIP

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Message

Re: linearization questions

2005-05-08 by Tyler Boley

--- In QuadtoneRIP@yahoogroups.com, "ccolbertbw" <ccolbert@u...> wrote:
...
> For me, it is more difficult to get  a smooth well-linearized 
> transition from 95  or so up to that final dmax....

> ...Having all the source code, you can see 
> what is going on. Its simple and direct.

I wish I had the knowledge to work with it at that level.

> 
> I just find it a bit frustrating that the last little bit of fine
tuning is
> fiddly and would like to figure out a way to make it less so.

Regarding this and the first comment, I think more
measurement/correction points in that area would help. With
StudioPrint, I will see differences in linearizations between 2
different papers between 95% and 100% untill I do an 80 patch
linearization. Iterative linearizations would not help this if there
are no sample points in that area.
Obviously this is a rare problem, and 21 steps is working well for
most situations. I did run into very similar results once though with
QTR on a particular ink setup, and I'm going to start from scratch on
that one.
Otherwise, I'm not sure what the solution would be. Start with heavy
limiting so things are behaving, then creep up the K boost?

Tyler

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