QTR-Quadtone RIP

Sorry that I just found the "Drop-Quad-Profile" script on mac version. I can't use QTR on mac because it can't find the printer (EPSON 3885),but it works on windows if I save the profiles in the directory of 3880UC.


Daisy






On Thursday, May 29, 2014 8:29 PM, "bjdaisie@... [QuadtoneRIP]" <QuadtoneRIP@yahoogroups.com> wrote:





 
I got the linearization info as below for the reading of step-21X4-random stepwedge:
 
Step Dens Lab A B 
0.00 0.086 92.57 0.04 5.04 -                             a                   b    L    +
5.00 0.090 92.22 0.15 5.36 -                             a                    b   L    +
10.00 0.099 91.52 0.29 5.64 -                             |a                    b L     +
15.00 0.114 90.25 0.55 6.29 -                             | a                     Lb    +
20.00 0.132 88.84 0.82 6.73 -                             |  a                   L  b   +
25.00 0.162 86.44 1.20 7.44 -                             |   a                L       b+
30.00 0.197 83.73 1.59 8.00 -                             |     a             L         b
35.00 0.248 79.88 1.98 8.37 -                             |      a         L            b
40.00 0.294 76.52 2.21 8.49 -                             |       a      L              b
45.00 0.346 72.98 2.35 8.30 -                             |        a   L                b
50.00 0.420 68.01 2.43 7.87 -                             |        aL                   b
55.00 0.497 63.24 2.32 7.12 -                             |      L a                  b +
60.00 0.600 57.20 1.90 5.50 -                             |   L  a              b       +
65.00 0.710 51.28 1.31 3.57 -                             L    a        b               +
70.00 0.793 47.11 0.76 1.86 -                           L |  a   b                      +
75.00 0.893 42.45 0.30 0.40 -                        L    |b                            +
80.00 0.974 38.95 0.01 -0.65 -                      L   b  a                             +
85.00 1.055 35.59 -0.17 -1.35 -                    L  b    a|                             +
90.00 1.115 33.28 -0.24 -1.80 -                  L  b      a|                             +
95.00 1.173 31.13 -0.23 -1.91 -                 L   b      a|                             +
100.00 1.221 29.46 -0.15 -1.77 -                L    b      a|                             +
 
LINEARIZE="92.575 92.22 91.52 90.2525 88.8375 86.44 83.7275 79.875 76.5225 72.9775 68.01 63.2375 57.205 51.2775 47.11 42.4475 38.945 35.595 33.28 31.13 29.4575"
 
For Digital Negative:
LINEARIZE="29.4575 31.13 33.28 35.595 38.945 42.4475 47.11 51.2775 57.205 63.2375 68.01 72.9775 76.5225 79.875 83.7275 86.44 88.8375 90.2525 91.52 92.22 92.575"
 
---------------------------------
 
Then I pasted the LINEARIZE data for Digital Negative into my previous ink description file. And in "Curve Creator" of QTRgui, I opened the file and clicked on  the "show curve" and got the message:
Invalid linearize curve - not constantly increasing. Curve Creation failed.
 
And it's so puzzling if I pasted the LINEARIZE data NOT for Digital negative, it could be linearized.  
 
And in the document of "QTR 2.7&Eye-One spectrophotometer", it reads:
The last line has the linearization info. Triple-click on it, Copy the whole line and Paste it to the bottom of the ink description file. Re-process the ink file with Drop-Quad-Profile.
 
Sorry to tell that I couldn't even find Where "Drop-Quad-Profile" is.  
 
I have also scanned the step-21X4-random stepwedge,read the k value of the first line,made a correction curve for negatives in PS and put it in the ink description file as Gray-curve. But the result seems worse than before. For example, I got K values of 68 for the patch of 70 without the Gray-curve, but now a K value of 50.
 
Really don't know what to do. Any suggestions would be highly appreciated!!
 
 
Daisy