Ian,
--
This data is obviously flawed. Look at the 100 line -- density = 4, L=0.
That's infinite black which is impossible. Most of the other data looks
pretty reasonable. But I wonder if you are missing paper white -- an
L=92.98 might be possible but it's awful dark for most papers. My guess
is you are missing step 0 and everything is shifted up one step and the
last one is bogus.
General Comment:
I'm surprised nobody has mentioned this. The idea of the output is to look at
it and see if it seems reasonable. Even if one does not really understand
L values look at the crude graph of L's. The last one is very much an outlier.
Something in the workflow is amiss.
Roy
On Sun, Feb 19, 2017 at 5:22 AM, ian@... [QuadtoneRIP] <QuadtoneRIP@yahoogroups.com> wrote:
I think I have successfully managed to now create a curve for Pinnacle Cotton Rag for the 3880The data below is the result after dropping the file onto the QTR Linearize ScriptFor those with more experience at reading the data, does the L values look as expectedQTR-Linearize-Data version 2.7.5.0File: /Applications/QuadToneRIP/Profiles/3880-UC/Epson-3880-UCmk-Pinnacle-Cotton-Rag-out.txtStep Dens Lab A B0.00 0.081 92.98 0.00 0.00 - b L +5.00 0.132 88.85 0.00 0.00 - b L +10.00 0.187 84.49 0.00 0.00 - b L +15.00 0.259 79.08 0.00 0.00 - b L +20.00 0.321 74.66 0.00 0.00 - b L +25.00 0.388 70.12 0.00 0.00 - b L +30.00 0.454 65.84 0.00 0.00 - b L +35.00 0.526 61.44 0.00 0.00 - b L +40.00 0.598 57.31 0.00 0.00 - b L +45.00 0.671 53.31 0.00 0.00 - bL +50.00 0.742 49.65 0.00 0.00 - Lb +55.00 0.788 47.37 0.00 0.00 - L b +60.00 0.883 42.90 0.00 0.00 - L b +65.00 0.970 39.08 0.00 0.00 - L b +70.00 1.094 34.08 0.00 0.00 - L b +75.00 1.214 29.69 0.00 0.00 - L b +80.00 1.336 25.59 0.00 0.00 - L b +85.00 1.412 23.23 0.00 0.00 - L b +90.00 1.498 20.75 0.00 0.00 - L b +95.00 1.635 17.08 0.00 0.00 - L b +100.00 4.000 0.00 0.00 0.00 L b +LINEARIZE="92.981415 88.849781 84.491689 79.077498 74.662569 70.122112 65.840786 61.442349 57.3101 53.310925 49.649033 47.366508 42.899787 39.082821 34.081111 29.693872 25.588358 23.230715 20.745073 17.07622 0"ThanksIan