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Re: [QuadtoneRIP] Help With Making QTR Curve

Re: [QuadtoneRIP] Help With Making QTR Curve

2017-02-18 by Paul Roark

For prints I always read the 21-step test strip from the paper white end (0%) to the 100% black end, in order: 0, 5, 10 ... 95, 100. Even then, there has to be some minimum increase in density (or decrease in Lab L).

Paul
www.PaulRoark.com
Show quoted textHide quoted text
On Sat, Feb 18, 2017 at 2:34 PM, ian@... [QuadtoneRIP] <QuadtoneRIP@yahoogroups.com> wrote:

I am trying to make a curve but when I try to linearize it, I am seeing the following message at the end of the file


The Lab values are not in order.

Cannot be linearized.


I printed the munki-21steps.tif file and measured each step individually with the Color Munki and then exported the results L a b


I then dropped that file onto the QTR-Linearize-Data.app script which created an -out.txt file which is where I see

The Lab values are not in order.

Cannot be linearized.


Does anyone know what I may have done wrong


Column1 - L
Column 2 - a
Column 3 - b


69.170411 2.229375 4.162587 38.967692 0.820198 1.544497 91.256101 -0.203137 2.426518 57.40068 2.058672 3.321924 26.076259 0.861397 2.001437 77.814396 1.531754 4.07091 47.183377 1.147048 1.835083 17.622641 1.490708 2.165402 64.98 2.272277 3.718938 34.99938 0.856993 1.813594 87.45355 0.358367 3.219209 53.827364 1.898121 2.837888 24.797505 0.904512 1.825907 73.69646 2.017101 4.294673 43.653643 1.001303 1.58205 94.769523 -0.762756 1.728522 61.048939 2.299934 3.561152 31.022183 0.82908 2.025414 82.733287 0.98201 3.696157 50.63376 1.565484 2.500536 21.442101 1.164079 2.080707




Re: [QuadtoneRIP] Help With Making QTR Curve

2017-02-18 by Alan Vlach

I believe the L column has to go from highest values at the top to lowest values at the bottom

Sent from my iPhone
Show quoted textHide quoted text
> On Feb 18, 2017, at 5:34 PM, ian@... [QuadtoneRIP] <QuadtoneRIP@yahoogroups.com> wrote:
> 
> I am trying to make a curve but when I try to linearize it, I am seeing the following message at the end of the file
> 
> 
> 
> The Lab values are not in order.
> 
> 
> Cannot be linearized.
> 
> 
> 
> I printed the munki-21steps.tif file and measured each step individually with the Color Munki and then exported the results L a b
> 
> 
> 
> I then dropped that file onto the QTR-Linearize-Data.app script which created an -out.txt file which is where I see
> 
> The Lab values are not in order.
> 
> 
> Cannot be linearized.
> 
> 
> 
> Does anyone know what I may have done wrong
> 
> 
> 
> 
> Column1 - L
> Column 2 - a
> Column 3 - b
>                               	
> 
> 69.170411	2.229375	4.162587
> 38.967692	0.820198	1.544497
> 91.256101	-0.203137	2.426518
> 57.40068	2.058672	3.321924
> 26.076259	0.861397	2.001437
> 77.814396	1.531754	4.07091
> 47.183377	1.147048	1.835083
> 17.622641	1.490708	2.165402
> 64.98	2.272277	3.718938
> 34.99938	0.856993	1.813594
> 87.45355	0.358367	3.219209
> 53.827364	1.898121	2.837888
> 24.797505	0.904512	1.825907
> 73.69646	2.017101	4.294673
> 43.653643	1.001303	1.58205
> 94.769523	-0.762756	1.728522
> 61.048939	2.299934	3.561152
> 31.022183	0.82908	2.025414
> 82.733287	0.98201	3.696157
> 50.63376	1.565484	2.500536
> 21.442101	1.164079	2.080707
> 
> 
> 
> 
>

Re: [QuadtoneRIP] Help With Making QTR Curve

2017-02-19 by Keith Schreiber

Hi Ian,

As Alan and Paul have already noted, the L* values of your 21-step target MUST be in ascending order from white to black. Looking at the numbers you posted, and not finding a target that could possibly produce that result in the QTR download, I'm going to guess that the target you used is a "randomized" one from X-rite or somewhere else. 

Try again using the target included with QTR or one like it. Applications>QuadToneRIP>CurveDesign>Images>21-step.psd 

Alternatively, drop your data into a spreadsheet and sort by L* ascending to get them in the correct order. 

Cheers,
Keith

Keith Schreiber
jkschreiber.com
Show quoted textHide quoted text
> On Feb 18, 2017, at 3:34 PM, ian@ianbarberphotography.co.uk [QuadtoneRIP] <QuadtoneRIP@yahoogroups.com> wrote:
> 
> 
> I am trying to make a curve but when I try to linearize it, I am seeing the following message at the end of the file
> 
> 
> 
> The Lab values are not in order.
> 
> 
> Cannot be linearized.
> 
> 
> 
> I printed the munki-21steps.tif file and measured each step individually with the Color Munki and then exported the results L a b
> 
> 
> 
> I then dropped that file onto the QTR-Linearize-Data.app script which created an -out.txt file which is where I see
> 
> The Lab values are not in order.
> 
> 
> Cannot be linearized.
> 
> 
> 
> Does anyone know what I may have done wrong
> 
> 
> 
> 
> Column1 - L
> Column 2 - a
> Column 3 - b
>                               	
> 
> 69.170411	2.229375	4.162587
> 38.967692	0.820198	1.544497
> 91.256101	-0.203137	2.426518
> 57.40068	2.058672	3.321924
> 26.076259	0.861397	2.001437
> 77.814396	1.531754	4.07091
> 47.183377	1.147048	1.835083
> 17.622641	1.490708	2.165402
> 64.98	2.272277	3.718938
> 34.99938	0.856993	1.813594
> 87.45355	0.358367	3.219209
> 53.827364	1.898121	2.837888
> 24.797505	0.904512	1.825907
> 73.69646	2.017101	4.294673
> 43.653643	1.001303	1.58205
> 94.769523	-0.762756	1.728522
> 61.048939	2.299934	3.561152
> 31.022183	0.82908	2.025414
> 82.733287	0.98201	3.696157
> 50.63376	1.565484	2.500536
> 21.442101	1.164079	2.080707
> 
> 
> 
> 
> 
>

Re: [QuadtoneRIP] Help With Making QTR Curve

2017-02-19 by Myron Gochnauer

The L values need to be sorted before using it for linearization. I can't recall for certain, but I think the L values need to go from high to low. If that doesn't work, try the other direction! :-)

I usually copy the readings (such a you have) into a spreadsheet, delete the a and b columns (they aren't used), and then sort the L column. The sorted column can then be copied, and pasted into a clean text file. That should prevent the error message you are getting.

Myron



On Feb 18, 2017, at 6:34 PM, ian@ianbarberphotography.co.uk [QuadtoneRIP] <QuadtoneRIP@yahoogroups.com> wrote:


I am trying to make a curve but when I try to linearize it, I am seeing the following message at the end of the file


The Lab values are not in order.


Cannot be linearized.


I printed the munki-21steps.tif file and measured each step individually with the Color Munki and then exported the results L a b


I then dropped that file onto the QTR-Linearize-Data.app script which created an -out.txt file which is where I see

The Lab values are not in order.


Cannot be linearized.


Does anyone know what I may have done wrong< /p>


Column1 - L
Column 2 - a
Column 3 - b


69.170411 2.229375 4.162587 38.967692 0.820198 1.544497 91.256101 -0.203137 2.426518 57.40068 2.058672 3.321924 26.076259 0.861397 2.001437 77.814396 1.531754 4.07091 47.183377 1.147048 1.835083 17.622641 1.490708 2.165402 64.98 2.272277 3.718938 34.99938 0.856993 1.813594 87.45355 0.358367 3.219209 53.827364 1.898121 2.837888 24.797505 0.904512 1.825907 73.69646 2.017101 4.294673 43.653643 1.001303 1.58205 94.769523 -0.762756 1.728522 61.048939 2.299934 3.561152 31.022183 0.82908 2.025414 82.733287 0.98201 3.696157 50.63376 1.565484 2.500536 21.442101 1.164079 2.080707





Re: [QuadtoneRIP] Help With Making QTR Curve

2017-02-19 by Roy Harrington

Ian,

I'm not sure what you are doing because I took your data from the post,
put it in a txt file and ran it through QTR-Linearize-Data and it worked just fine.
The program automatically sorts the data by the L* values (or Gray values if
they exist).

It looks like a perfectly good set of data. Simply copy paste the LINEARIZE
line from the output into the curve desc file (.txt)

Roy

See output:
QTR-Linearize-Data version 2.7.5.0
File: /Users/roy/Documents/ian-out.txt
Step Dens Lab A B
0.00 0.060 94.77 -0.76 1.73 - a | b L +
5.00 0.102 91.26 -0.20 2.43 - a| b L +
10.00 0.149 87.45 0.36 3.22 - |a b L +
15.00 0.210 82.73 0.98 3.70 - | a b L +
20.00 0.277 77.81 1.53 4.07 - | a b +
25.00 0.335 73.70 2.02 4.29 - | a L b +
30.00 0.403 69.17 2.23 4.16 - | a L b +
35.00 0.468 64.98 2.27 3.72 - | La b +
40.00 0.533 61.05 2.30 3.56 - | L a b +
45.00 0.596 57.40 2.06 3.32 - | L a b +
50.00 0.661 53.83 1.90 2.84 - | L a b +
55.00 0.722 50.63 1.57 2.50 - L a b +
60.00 0.792 47.18 1.15 1.84 - L | a b +
65.00 0.866 43.65 1.00 1.58 - L | a b +
70.00 0.973 38.97 0.82 1.54 - L | a b +
75.00 1.071 35.00 0.86 1.81 - L | a b +
80.00 1.176 31.02 0.83 2.03 - L | a b +
85.00 1.321 26.08 0.86 2.00 - L | a b +
90.00 1.361 24.80 0.90 1.83 - L | a b +
95.00 1.473 21.44 1.16 2.08 - L | a b +
100.00 1.613 17.62 1.49 2.17 - L | a b +

LINEARIZE="94.769523 91.256101 87.45355 82.733287 77.814396 73.69646 69.170411 64.98 61.048939 57.40068 53.827364 50.63376 47.183377 43.653643 38.967692 34.99938 31.022183 26.076259 24.797505 21.442101 17.622641"

For Digital Negative:
LINEARIZE="17.622641 21.442101 24.797505 26.076259 31.022183 34.99938 38.967692 43.653643 47.183377 50.63376 53.827364 57.40068 61.048939 64.98 69.170411 73.69646 77.814396 82.733287 87.45355 91.256101 94.769523"

Show quoted textHide quoted text
On Sat, Feb 18, 2017 at 2:34 PM, ian@... [QuadtoneRIP] <QuadtoneRIP@yahoogroups.com> wrote:


I am trying to make a curve but when I try to linearize it, I am seeing the following message at the end of the file


The Lab values are not in order.

Cannot be linearized.


I printed the munki-21steps.tif file and measured each step individually with the Color Munki and then exported the results L a b


I then dropped that file onto the QTR-Linearize-Data.app script which created an -out.txt file which is where I see

The Lab values are not in order.

Cannot be linearized.


Does anyone know what I may have done wrong


Column1 - L
Column 2 - a
Column 3 - b


69.170411 2.229375 4.162587 38.967692 0.820198 1.544497 91.256101 -0.203137 2.426518 57.40068 2.058672 3.321924 26.076259 0.861397 2.001437 77.814396 1.531754 4.07091 47.183377 1.147048 1.835083 17.622641 1.490708 2.165402 64.98 2.272277 3.718938 34.99938 0.856993 1.813594 87.45355 0.358367 3.219209 53.827364 1.898121 2.837888 24.797505 0.904512 1.825907 73.69646 2.017101 4.294673 43.653643 1.001303 1.58205 94.769523 -0.762756 1.728522 61.048939 2.299934 3.561152 31.022183 0.82908 2.025414 82.733287 0.98201 3.696157 50.63376 1.565484 2.500536 21.442101 1.164079 2.080707








--
Roy Harrington
roy@...
www.harrington.com

Re: [QuadtoneRIP] Help With Making QTR Curve

2017-02-19 by Larry

Was the output message you got after following the procedure I wrote up for the colormunki?

http://www.cyberhalides.com/piezography-printing/relinearising-piezography-curves-with-a-colormunki/

If so, I would be interested in figuring out why the procedure failed to work for you.  The only problem I've encountered so far is if the profile used doesn't produce patches linear enough to linearize.   the other problem I might encounter is if the initial profile actually produces "reversals".  This happened for me when I accidently put a patch in the wrong order.  However, if the shadows are "crushed" and very close together, you may get a reversal which, if memory serves me correctly, will give that "Lab values are not in order."

Larry
Show quoted textHide quoted text
On Feb 18, 2017, 15:00, at 15:00, "ian@ianbarberphotography.co.uk [QuadtoneRIP]" <QuadtoneRIP@yahoogroups.com> wrote:
>I am trying to make a curve but when I try to linearize it, I am seeing
>the following message at the end of the file
> 
>
> The Lab values are not in order.
> 
> Cannot be linearized.
> 
>
>I printed the munki-21steps.tif file and measured each step
>individually with the Color Munki and then exported the results L a b
> 
>
>I then dropped that file onto the QTR-Linearize-Data.app script which
>created an -out.txt file which is where I see
> The Lab values are not in order.
> 
> Cannot be linearized.
> 
>
> Does anyone know what I may have done wrong
> 
>
> 
> Column1 - L
>Column 2 - a
>Column 3 - b
>                               
> 
>69.170411 2.229375 4.162587 38.967692 0.820198 1.544497 91.256101
>-0.203137 2.426518 57.40068 2.058672 3.321924 26.076259 0.861397
>2.001437 77.814396 1.531754 4.07091 47.183377 1.147048 1.835083
>17.622641 1.490708 2.165402 64.98 2.272277 3.718938 34.99938 0.856993
>1.813594 87.45355 0.358367 3.219209 53.827364 1.898121 2.837888
>24.797505 0.904512 1.825907 73.69646 2.017101 4.294673 43.653643
>1.001303 1.58205 94.769523 -0.762756 1.728522 61.048939 2.299934
>3.561152 31.022183 0.82908 2.025414 82.733287 0.98201 3.696157 50.63376
>1.565484 2.500536 21.442101 1.164079 2.080707 
>
> 
>
>

Re: [QuadtoneRIP] Help With Making QTR Curve

2017-02-19 by ian@...

I think I have successfully managed to now create a curve for Pinnacle Cotton Rag for the 3880

The data below is the result after dropping the file onto the QTR Linearize Script

For those with more experience at reading the data, does the L values look as expected


QTR-Linearize-Data version 2.7.5.0
File: /Applications/QuadToneRIP/Profiles/3880-UC/Epson-3880-UCmk-Pinnacle-Cotton-Rag-out.txt
Step Dens Lab A B
0.00 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"

Thanks

Ian

Re: [QuadtoneRIP] Help With Making QTR Curve

2017-02-19 by Larry Beach

It looks like it's been removed from Northernlight Images.  I've got a copy of the file if you wish to try it.  Because of potential copyright laws, I probably cannot upload the file anywhere for general access.

However, that tool was extremely useful for fishing out the relevant Lab data from the Colormunki to linearise.

Larry
--------------------------------------------
On Sun, 2/19/17, ian@... [QuadtoneRIP] <QuadtoneRIP@yahoogroups.com> wrote:
Show quoted textHide quoted text
 Subject: Re: [QuadtoneRIP] Help With Making QTR Curve
 To: QuadtoneRIP@yahoogroups.com
 Received: Sunday, February 19, 2017, 1:28 AM
 
 
  
 
 
 
   
 
 
     
       
       
       
 Hi
 Larry
 I started to
 follow your instructions but when I tried to download the
 XML Import Excel filde from the link http://cdn.northlight-images.co.uk/file-download-page-photography/ I
 was unable to find it. 
 
     
      
 
     
     
 
 
 
 #yiv7627800547 #yiv7627800547 --

Re: [QuadtoneRIP] Help With Making QTR Curve

2017-02-19 by Larry Beach

I found the colormunki_xmlimport tool, but it's sort of hidden.  In the Addendum section right near the end, it's the link "sample Excel file".
--------------------------------------------
On Sun, 2/19/17, Larry Beach pianoquartet@... [QuadtoneRIP] <QuadtoneRIP@yahoogroups.com> wrote:
Show quoted textHide quoted text
 Subject: Re: [QuadtoneRIP] Help With Making QTR Curve
 To: QuadtoneRIP@yahoogroups.com
 Received: Sunday, February 19, 2017, 8:11 AM
 
 
  
 
 
 
   
 
 
     
       
       
       It looks like it's been removed from
 Northernlight Images.  I've got a copy of the file if
 you wish to try it.  Because of potential copyright laws, I
 probably cannot upload the file anywhere for general
 access.
 
 
 
 However, that tool was extremely useful for fishing out the
 relevant Lab data from the Colormunki to linearise.
 
 
 
 Larry
 
 --------------------------------------------
 
 On Sun, 2/19/17, ian@...
 [QuadtoneRIP] <QuadtoneRIP@yahoogroups.com> wrote:
 
 
 
 Subject: Re: [QuadtoneRIP] Help With Making QTR Curve
 
  To: QuadtoneRIP@yahoogroups.com
 
  Received: Sunday, February 19, 2017, 1:28 AM
 
  
 
  
 
   
 
  
 
  
 
  
 
    
 
  
 
  
 
      
 
        
 
        
 
        
 
  Hi
 
  Larry
 
  I started to
 
  follow your instructions but when I tried to download
 the
 
  XML Import Excel filde from the
 link http://cdn.northlight-images.co.uk/file-download-page-photography/ I
 
  was unable to find it. 
 
  
 
      
 
       
 
  
 
      
 
      
 
  
 
  
 
  
 
  #yiv7627800547 #yiv7627800547 --

Re: [QuadtoneRIP] Help With Making QTR Curve

2017-02-19 by Larry Beach

Sorry, here's a link to the current webpage: http://www.northlight-images.co.uk/better-black-and-white-profiling-with-the-colormunki/

Again, near the bottom in the "Addendum", click on "Sample Excel file"

Larry
--------------------------------------------
On Sun, 2/19/17, Larry Beach pianoquartet@yahoo.ca [QuadtoneRIP] <QuadtoneRIP@yahoogroups.com> wrote:
Show quoted textHide quoted text
 Subject: Re: [QuadtoneRIP] Help With Making QTR Curve
 To: QuadtoneRIP@yahoogroups.com
 Received: Sunday, February 19, 2017, 8:22 AM
 
 
  
 
 
 
   
 
 
     
       
       
       I found the colormunki_xmlimport tool, but it's
 sort of hidden.  In the Addendum section right near the end,
 it's the link "sample Excel file".
 
 --------------------------------------------
 
 On Sun, 2/19/17, Larry Beach pianoquartet@...
 [QuadtoneRIP] <QuadtoneRIP@yahoogroups.com> wrote:
 
 
 
 Subject: Re: [QuadtoneRIP] Help With Making QTR Curve
 
  To: QuadtoneRIP@yahoogroups.com
 
  Received: Sunday, February 19, 2017, 8:11 AM
 
  
 
  
 
   
 
  
 
  
 
  
 
    
 
  
 
  
 
      
 
        
 
        
 
        It looks like it's been removed from
 
  Northernlight Images.  I've got a copy of the file
 if
 
  you wish to try it.  Because of potential copyright laws,
 I
 
  probably cannot upload the file anywhere for general
 
  access.
 
  
 
  
 
  
 
  However, that tool was extremely useful for fishing out
 the
 
  relevant Lab data from the Colormunki to linearise.
 
  
 
  
 
  
 
  Larry
 
  
 
  --------------------------------------------
 
  
 
  On Sun, 2/19/17, ian@ianbarberphotography.co.uk
 
  [QuadtoneRIP] <QuadtoneRIP@yahoogroups.com> wrote:
 
  
 
  
 
  
 
  Subject: Re: [QuadtoneRIP] Help With Making QTR Curve
 
  
 
   To: QuadtoneRIP@yahoogroups.com
 
  
 
   Received: Sunday, February 19, 2017, 1:28 AM
 
  
 
   
 
  
 
   
 
  
 
    
 
  
 
   
 
  
 
   
 
  
 
   
 
  
 
     
 
  
 
   
 
  
 
   
 
  
 
       
 
  
 
         
 
  
 
         
 
  
 
         
 
  
 
   Hi
 
  
 
   Larry
 
  
 
   I started to
 
  
 
   follow your instructions but when I tried to download
 
  the
 
  
 
   XML Import Excel filde from the
 
  link http://cdn.northlight-images.co.uk/file-download-page-photography/ I
 
  
 
   was unable to find it. 
 
  
 
   
 
  
 
       
 
  
 
        
 
  
 
   
 
  
 
       
 
  
 
       
 
  
 
   
 
  
 
   
 
  
 
   
 
  
 
   #yiv7627800547 #yiv7627800547 --

Re: [QuadtoneRIP] Help With Making QTR Curve

2017-02-19 by Roy Harrington

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

Show quoted textHide quoted text
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 3880

The data below is the result after dropping the file onto the QTR Linearize Script

For those with more experience at reading the data, does the L values look as expected


QTR-Linearize-Data version 2.7.5.0
File: /Applications/QuadToneRIP/Profiles/3880-UC/Epson-3880-UCmk-Pinnacle-Cotton-Rag-out.txt
Step Dens Lab A B
0.00 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"

Thanks

Ian






--
Roy Harrington
roy@...
www.harrington.com

Re: [QuadtoneRIP] Help With Making QTR Curve

2017-02-19 by ian@...

Roy

I wondered about that and have now done it again with the following data results
How does this look to you

QTR-Linearize-Data version 2.7.5.0
File: /Users/ianbarber/QTR Curves/Pinnacle Cotton Rag 310gsm-out.txt
Step Dens Lab A B
0.00 0.040 96.50 0.00 0.00 - b L +
5.00 0.081 92.98 0.00 0.00 - b L +
10.00 0.132 88.85 0.00 0.00 - b L +
15.00 0.187 84.49 0.00 0.00 - b L +
20.00 0.259 79.08 0.00 0.00 - b L +
25.00 0.321 74.66 0.00 0.00 - b L +
30.00 0.388 70.12 0.00 0.00 - b L +
35.00 0.454 65.84 0.00 0.00 - b L +
40.00 0.526 61.44 0.00 0.00 - b L +
45.00 0.598 57.31 0.00 0.00 - b L +
50.00 0.671 53.31 0.00 0.00 - bL +
55.00 0.742 49.65 0.00 0.00 - Lb +
60.00 0.788 47.37 0.00 0.00 - L b +
65.00 0.883 42.90 0.00 0.00 - L b +
70.00 0.970 39.08 0.00 0.00 - L b +
75.00 1.094 34.08 0.00 0.00 - L b +
80.00 1.214 29.69 0.00 0.00 - L b +
85.00 1.336 25.59 0.00 0.00 - L b +
90.00 1.412 23.23 0.00 0.00 - L b +
95.00 1.498 20.75 0.00 0.00 - L b +
100.00 1.635 17.08 0.00 0.00 - L b +

LINEARIZE="96.495101 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"

For Digital Negative:
LINEARIZE="17.07622 20.745073 23.230715 25.588358 29.693872 34.081111 39.082821 42.899787 47.366508 49.649033 53.310925 57.3101 61.442349 65.840786 70.122112 74.662569 79.077498 84.491689 88.849781 92.981415 96.495101"


Re: [QuadtoneRIP] Help With Making QTR Curve

2017-02-19 by Roy Harrington

Perfect!

On Sun, Feb 19, 2017 at 10:04 AM, ian@... [QuadtoneRIP] <QuadtoneRIP@yahoogroups.com> wrote:


Roy

I wondered about that and have now done it again with the following data results
How does this look to you

QTR-Linearize-Data version 2.7.5.0
File: /Users/ianbarber/QTR Curves/Pinnacle Cotton Rag 310gsm-out.txt
Step Dens Lab A B
0.00 0.040 96.50 0.00 0.00 - b L +
5.00 0.081 92.98 0.00 0.00 - b L +
10.00 0.132 88.85 0.00 0.00 - b L +
15.00 0.187 84.49 0.00 0.00 - b L +
20.00 0.259 79.08 0.00 0.00 - b L +
25.00 0.321 74.66 0.00 0.00 - b L +
30.00 0.388 70.12 0.00 0.00 - b L +
35.00 0.454 65.84 0.00 0.00 - b L +
40.00 0.526 61.44 0.00 0.00 - b L +
45.00 0.598 57.31 0.00 0.00 - b L +
50.00 0.671 53.31 0.00 0.00 - bL +
55.00 0.742 49.65 0.00 0.00 - Lb +
60.00 0.788 47.37 0.00 0.00 - L b +
65.00 0.883 42.90 0.00 0.00 - L b +
70.00 0.970 39.08 0.00 0.00 - L b +
75.00 1.094 34.08 0.00 0.00 - L b +
80.00 1.214 29.69 0.00 0.00 - L b +
85.00 1.336 25.59 0.00 0.00 - L b +
90.00 1.412 23.23 0.00 0.00 - L b +
95.00 1.498 20.75 0.00 0.00 - L b +
100.00 1.635 17.08 0.00 0.00 - L b +

LINEARIZE="96.495101 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"

For Digital Negative:
LINEARIZE="17.07622 20.745073 23.230715 25.588358 29.693872 34.081111 39.082821 42.899787 47.366508 49.649033 53.310925 57.3101 61.442349 65.840786 70.122112 74.662569 79.077498 84.491689 88.849781 92.981415 96.495101"







--
Roy Harrington
roy@...
www.harrington.com

Re: [QuadtoneRIP] Help With Making QTR Curve

2017-02-19 by brian_downunda@...

Larry, I've added the direct URL to the article. I find it hard to see that there's much intellectual property in it, such that hosting a copy would infringe anything.

(Bit hard to spot bogus data at 12:22am, but it's a valid point. Too much statistical analysis is uninformed by a simple inspection of the raw data.)


---In QuadtoneRIP@yahoogroups.com, <pianoquartet@...> wrote :

Sorry, here's a link to the current webpage: http://www.northlight-images.co.uk/better-black-and-white-profiling-with-the-colormunki/

Again, near the bottom in the "Addendum", click on "Sample Excel file"

Larry

Re: [QuadtoneRIP] Help With Making QTR Curve

2017-02-19 by Larry

Thanks Brian!
Show quoted textHide quoted text
On Feb 19, 2017, 13:43, at 13:43, "brian_downunda@...m [QuadtoneRIP]" <QuadtoneRIP@yahoogroups.com> wrote:
>Larry, I've added the direct URL to the article.  I find it hard to see
>that there's much intellectual property in it, such that hosting a copy
>would infringe anything.
>
>(Bit hard to spot bogus data at 12:22am, but it's a valid point.  Too
>much statistical analysis is uninformed by a simple inspection of the
>raw data.)
> 
>
>---In QuadtoneRIP@yahoogroups.com, <pianoquartet@...> wrote :
>
>Sorry, here's a link to the current webpage:
>http://www.northlight-images.co.uk/better-black-and-white-profiling-with-the-colormunki/
>http://www.northlight-images.co.uk/better-black-and-white-profiling-with-the-colormunki/
> 
> Again, near the bottom in the "Addendum", click on "Sample Excel file"
> 
> Larry

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.