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QTR-Quadtone RIP

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Message

Re: [QuadtoneRIP] Problems creating a profile on Mac...

2010-11-03 by Howard Shaw

I would try using less data points, say 21. I seem to remember reading 
on this board in the past that, even though the readings don't actually 
reverse, if the intervals are not reasonably smooth then this error can 
occur. The chances of this happening are increased the more data points 
you have.

regards
Howard

On 02/11/2010 05:34, mjmptpd wrote:
> Hi folks,
>
> I've used QTR on Windows a good bit, but I am trying to get to understand it on a Mac now, and it's giving me some trouble...
>
> I'm trying to linearize a profile that I am creating, and I am getting the error below:
>
> "invalid linearize curve -- not constantly increasing"
>
> However, the data is constantly increasing.  It goes from 0,0 to 100,100 without flattening out or going down at any point.  I've tried density data and running it through the linearize program to no avail.  I never had this problem with the old Windows version, except when there actually was a problem.  Any suggestions?
>
> Here's the data:
>
> Creating curve Q4800-UCmk-RR-60PMatte-Warm-Lin
> LINEARIZE       = "72.67 71.32 69.33 68.03 66.12 63.64 61.23 59.47 57.75 55.53 54.44 53.36 51.78 49.73 48.24 46.78 44.88 43.49 41.69 39.95 38.68 37.02 35.82 34.25 33.1 31.99 30.54 29.83 28.78 27.43 26.77 25.8 24.84 24.22 23.01 22.12 20.97 20.12 19.57 18.23 17.71 16.69 15.7 15.22 14.51 14.05 13.14 11.83 11.61"
> LINEARIZE_CURVE = 0,0 2.21,2.08 5.47,4.17 7.6,6.25 10.73,8.33 14.79,10.42 18.74,12.5 21.62,14.58 24.43,16.67 28.07,18.75 29.86,20.83 31.62,22.92 34.21,25 37.57,27.08 40.01,29.17 42.4,31.25 45.51,33.33 47.79,35.42 50.74,37.5 53.59,39.58 55.67,41.67 58.39,43.75 60.35,45.83 62.92,47.92 64.81,50 66.62,52.08 69,54.17 70.16,56.25 71.88,58.33 74.09,60.42 75.17,62.5 76.76,64.58 78.33,66.67 79.35,68.75 81.33,70.83 82.79,72.92 84.67,75 86.06,77.08 86.96,79.17 89.16,81.25 90.01,83.33 91.68,85.42 93.3,87.5 94.09,89.58 95.25,91.67 96,93.75 97.49,95.83 99.64,97.92 100,100
> Invalid linearize curve -- not constantly increasing
>    0     0
>   10  2055 **
>   21  4448 ***
>   31  5953 *****
>   42  7370 ******
>   53  9127 *******
>   63 11024 ********
>   74 12963 **********
>   85 15997 ************
>   95 17600 *************
> 106 20044 ***************
> 116 21832 *****************
> 127 24189 ******************
> 138 26284 ********************
> 148 28468 **********************
> 159 31092 ************************
> 170 34157 **************************
> 180 37306 ****************************
> 191 40625 *******************************
> 201 44365 **********************************
> 212 48083 *************************************
> 223 52298 ****************************************
> 233 55830 *******************************************
> 244 60852 **********************************************
> 255 65535 **************************************************
>
>
>
>


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

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