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QTR-Quadtone RIP

Index last updated: 2026-04-28 23:12 UTC

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Re: [QuadtoneRIP] Linearization 60 values?

2009-05-28 by Howard Shaw

The steps must all be evenly spaced starting from 0 (paper white) and 
finishing at 100 (dmax). You could use every second step on your 0-100 
step wedge (ie 51 values) but most people just use 21 steps in intervals 
of 5. Make sure there are no reversals in the steps.

Howard

Howard Shaw
glassman@...
www.howardshaw.org


jag24x wrote:
> Hi all,
>
> I'm sure I've missed something somewhere! I've done my transition of Ink setup for 4 inks. Now i've got a 1 to 100 step wedge in increments on 1. Now in the Linearization part of QTR there are 60 values to enter?
> The top left starts at 1 of my step wedge which is the whitest part. Now the first line is what, 1 to 10?
> Then the next line is increments of 2 ? From 11 to 20? for the first 5 colums? Then the next column 21 to 30?
> Then go to the 3 row, then start from 31 to 40. increments of 2 etc etc
> The last row, 6th one, is that 91, 92, 93, increments of 1?
>
> Thanks
> jag24x
>
>
>
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