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QTR-Quadtone RIP

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Re: [QuadtoneRIP] fine tuning .acv curves

2016-08-15 by Stefan Christiansen

Thanks for answering unclear questions.
Not sure of what I want either, I ignore too much about linearizing with a spectro…
I guess the droplet needs real readings from a print.

I thought curves in PS with 16-bit images had a 16-bit accuracy, or at least were less destructive than with 8-bit images. I probably don't understand what accuracy means here.
I once checked that a "0;0 50;75 100;100" QTR curve and a .acv curve with similar values would create very close profiles (comparing the two profiles in QTR-CurveView or TextEdit). Then there are 2 possible L values for the 50% input in PS, and 3 possible L values for the 75% output…
So I assumed the maths behind both curves generators were the same, as well as accuracy.

QTR-CurveView offers a nice visual display of a profile's curve(s), especially in a full screen window (I already mentioned the coordinates not moving well along in an enlarged window). It's eloquent to compare two profiles with quick keyboard shortcuts switches.
It would be great if one could read x and y values (% or L) by pointing on the curve or moving a slider on one axis.
Would it be possible to make that happen some day?

Thanks.

Stefan

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