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QTR Create ICC

QTR Create ICC

2005-09-21 by Tom Husband

Where is QTR Create ICC and are there any instructions?  I see it in
the eye-one folder but when I double click on the .exe file something
appears and the disappears very quickly.  I don't see it anywhere in
the gui.  I have an X-rite 810 but not an eye one.  Does that make any
difference?

Thanks,

Tom

Re: [QuadtoneRIP] QTR Create ICC

2005-09-21 by Tom Husband

Ah ha, I see the .pdf file now and it looks like it'll only work with the eye-one, right? It looks like it's a drag and drop sort of set up too.
Tom
Show quoted textHide quoted text
----- Original Message -----
Sent: Tuesday, September 20, 2005 5:34 PM
Subject: [QuadtoneRIP] QTR Create ICC

Where is QTR Create ICC and are there any instructions? I see it in
the eye-one folder but when I double click on the .exe file something
appears and the disappears very quickly. I don't see it anywhere in
the gui. I have an X-rite 810 but not an eye one. Does that make any
difference?

Thanks,

Tom

RE: [QuadtoneRIP] QTR Create ICC

2005-09-21 by Tom Moore

Tom

 

Create-icc takes an I1 Measure File as input. It takes the name of the file
from the command line. If you just click on the executable, it doesn't find
a name and quits right away, hence the behaviour.

 

A Measure File is a text file with a specific format. You can use the
spreadsheet called curveeval.xls in the files section of this group to
export a Measure File based on density readings taken into excel. Xrite's
Toolcrib or xkey utilities can be used to import density readings from an
810 into an application like excel.

 

If you don't have excel you could also use the MeasureFile.csv that I also
uploaded to the files area. It's a comma separated value file (text
editable). It's not as convenient to edit, but quite doable.

 

You'll have to convert your 810 density readings to L* (Lightness) values as
required by create-icc. My spreadsheet will do that or you can use Bruce
Lindbloom's companding calculator that's available at:

 

http://www.brucelindbloom.com/index.html?CompandCalculator.html

 

Good luck

 

Tom Moore

 

  _____  
Show quoted textHide quoted text
From: QuadtoneRIP@yahoogroups.com [mailto:QuadtoneRIP@yahoogroups.com] On
Behalf Of Tom Husband
Sent: Tuesday, September 20, 2005 8:49 PM
To: QuadtoneRIP@yahoogroups.com
Subject: Re: [QuadtoneRIP] QTR Create ICC

 

Ah ha, I see the .pdf file now and it looks like it'll only work with the
eye-one, right?  It looks like it's a drag and drop sort of set up too.

 

Tom

----- Original Message ----- 

From: Tom Husband <mailto:thusband@...>  

To: QuadtoneRIP@yahoogroups.com 

Sent: Tuesday, September 20, 2005 5:34 PM

Subject: [QuadtoneRIP] QTR Create ICC

 

Where is QTR Create ICC and are there any instructions?  I see it in
the eye-one folder but when I double click on the .exe file something
appears and the disappears very quickly.  I don't see it anywhere in
the gui.  I have an X-rite 810 but not an eye one.  Does that make any
difference?

Thanks,

Tom

 

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QTR Create ICC

2008-01-05 by Rainer Taube

Hallo,

my name is Rainer Taube, i\ufffdm from Berlin, Germany. I didn\ufffdt work with 
QTR for a longer time and now, trying to come back and understand again 
how things are working, i found something that confuses me.

1. I printed the Step-21-gray.tiff with Photoshop, no profile assigned.
2. I measured the Lab numbers with QuickRead which is still on my 
machine and i find it useful.
3. I exported the measured values
4. I drew the file on QTR-Linearize-Data.exe
5. The programme generates the ..._out.txt without error messages. 
Looking in it, all seems to be fine.
6. I drew th ..._out.txt file on QTR-Create-ICC.exe. An ....ICC is 
generated without error messages. So far so good.

But now comes what confuses me.

When i look into the numbers, that come up with QTR-Create-ICC, all Lab 
Values are shifted one step upwards.

For example

Before QTR-Create-ICC

QTR-Linearize-Data version 2.5.2.0
File: C:\Dokumente und Einstellungen\Rainer\Eigene 
Dateien\Fotografie\Messungen\20080105_2100bo2-out.txt
Step    Dens    Lab    A    B   
0.00    0.048    95.80    0.00    0.00    -                             
b                          L  +
5.00    0.109    90.73    0.00    0.00    -                             
b                       L     +
10.00    0.177    85.25    0.00    0.00    -                             
b                    L        +
15.00    0.257    79.20    0.00    0.00    -                             
b                L            +
20.00    0.339    73.43    0.00    0.00    -                             
b             L               +
25.00    0.410    68.69    0.00    0.00    -                             
b          L                  +
30.00    0.485    63.93    0.00    0.00    -                             
b       L                     +
35.00    0.560    59.45    0.00    0.00    -                             
b    L                        +
40.00    0.651    54.36    0.00    0.00    -                             
b L                           +
45.00    0.741    49.70    0.00    0.00    -                            
Lb                             +
50.00    0.808    46.38    0.00    0.00    -                          L  
b                             +
55.00    0.899    42.17    0.00    0.00    -                        L    
b                             +
60.00    1.002    37.78    0.00    0.00    -                     L       
b                             +
65.00    1.116    33.26    0.00    0.00    -                  L          
b                             +
70.00    1.226    29.26    0.00    0.00    -                L            
b                             +
75.00    1.343    25.38    0.00    0.00    -              L              
b                             +
80.00    1.523    20.05    0.00    0.00    -           L                 
b                             +
85.00    1.679    15.98    0.00    0.00    -        L                    
b                             +
90.00    1.813    12.85    0.00    0.00    -      L                      
b                             +
95.00    2.012    8.77    0.00    0.00    -    L                        
b                             +
100.00    2.110    7.01    0.00    0.00    -   L                         
b                             +

LINEARIZE="95.8 90.73 85.25 79.2 73.43 68.69 63.93 59.45 54.36 49.7 
46.38 42.17 37.78 33.26 29.26 25.38 20.05 15.98 12.85 8.77 7.01"

After QTR-Create-ICC it looks different (see the following table) and a 
new -out file is createt from the input file with the name ... -out-out.txt
Alle Values are shifted 1 step up, 5% becomes 0% and so on. And most 
amazing. The 100% step gets a density of 4 and a Lab Value of 0. Is that 
really ok???? What i\ufffdm doing wrong?

QTR-Create-ICC version 2.5.2.0

File: C:\Dokumente und Einstellungen\Rainer\Eigene 
Dateien\Fotografie\Messungen\20080105_2100bo2-out-out.txt
Step    Dens    Lab    A    B   
0.00    0.109    90.73    0.00    0.00    -                             
b                       L     +
5.00    0.177    85.25    0.00    0.00    -                             
b                    L        +
10.00    0.257    79.20    0.00    0.00    -                             
b                L            +
15.00    0.339    73.43    0.00    0.00    -                             
b             L               +
20.00    0.410    68.69    0.00    0.00    -                             
b          L                  +
25.00    0.485    63.93    0.00    0.00    -                             
b       L                     +
30.00    0.560    59.45    0.00    0.00    -                             
b    L                        +
35.00    0.651    54.36    0.00    0.00    -                             
b L                           +
40.00    0.741    49.70    0.00    0.00    -                            
Lb                             +
45.00    0.808    46.38    0.00    0.00    -                          L  
b                             +
50.00    0.899    42.17    0.00    0.00    -                        L    
b                             +
55.00    1.002    37.78    0.00    0.00    -                     L       
b                             +
60.00    1.116    33.26    0.00    0.00    -                  L          
b                             +
65.00    1.226    29.26    0.00    0.00    -                L            
b                             +
70.00    1.343    25.38    0.00    0.00    -              L              
b                             +
75.00    1.523    20.05    0.00    0.00    -           L                 
b                             +
80.00    1.679    15.98    0.00    0.00    -        L                    
b                             +
85.00    1.813    12.85    0.00    0.00    -      L                      
b                             +
90.00    2.012    8.77    0.00    0.00    -    L                        
b                             +
95.00    2.110    7.01    0.00    0.00    -   L                         
b                             +
100.00    4.000    0.00    0.00    0.00    L                             
b                             +

Created ICC file C:\Dokumente und Einstellungen\Rainer\Eigene 
Dateien\Fotografie\Messungen\20080105_2100bo2-out.icc

Best regards

Rainer Taube

Re: [QuadtoneRIP] QTR Create ICC

2008-01-05 by Roy Harrington

Hi Rainer,
The two programs QTR-Linearize-Data and QTR-Create-ICC are both designed to
take the same kind of input -- what you get out of QuickRead.   So the
problem
is putting the output of one in to the other one.

Since they are so similar it's easy to confuse the different purposes.
The QTR-Linearize-Data is used in creating and linearizing a QTR
profile/curve.
This is done without any ICC profiling at all.

Once you have a linearized QTR curve you may want to ICC profile it so that
the
color management features of Photoshop can be used.  You'll print out a
completely
new stepwedge with the linearized curve, read it with QuickRead and use
QTR-Create-ICC.
The resultant ICC can be used as a print profile and for softproofing.

Roy

On Jan 5, 2008 8:45 AM, Rainer Taube <rainer@...> wrote:

> Hallo,
>
> my name is Rainer Taube, i´m from Berlin, Germany. I didn´t work with
> QTR for a longer time and now, trying to come back and understand again
> how things are working, i found something that confuses me.
>
> 1. I printed the Step-21-gray.tiff with Photoshop, no profile assigned.
> 2. I measured the Lab numbers with QuickRead which is still on my
> machine and i find it useful.
> 3. I exported the measured values
> 4. I drew the file on QTR-Linearize-Data.exe
> 5. The programme generates the ..._out.txt without error messages.
> Looking in it, all seems to be fine.
> 6. I drew th ..._out.txt file on QTR-Create-ICC.exe. An ....ICC is
> generated without error messages. So far so good.
>
> ...
>
> Best regards
>
> Rainer Taube
>
>
>


[Non-text portions of this message have been removed]

Re: [QuadtoneRIP] QTR Create ICC

2008-01-06 by Rainer Taube

Hallo Roy,

thank you for the explanation. I\ufffdll try to go on with this knowledge.

Best Regards

Rainer

Roy Harrington schrieb:
Show quoted textHide quoted text
>
> Hi Rainer,
> The two programs QTR-Linearize-Data and QTR-Create-ICC are both 
> designed to
> take the same kind of input -- what you get out of QuickRead. So the
> problem
> is putting the output of one in to the other one.
>
> Since they are so similar it's easy to confuse the different purposes.
> The QTR-Linearize-Data is used in creating and linearizing a QTR
> profile/curve.
> This is done without any ICC profiling at all.
>
> Once you have a linearized QTR curve you may want to ICC profile it so 
> that
> the
> color management features of Photoshop can be used. You'll print out a
> completely
> new stepwedge with the linearized curve, read it with QuickRead and use
> QTR-Create-ICC.
> The resultant ICC can be used as a print profile and for softproofing.
>
> Roy
>
> On Jan 5, 2008 8:45 AM, Rainer Taube <rainer@... 
> <mailto:rainer%40tauberlin.de>> wrote:
>
> > Hallo,
> >
> > my name is Rainer Taube, i\ufffdm from Berlin, Germany. I didn\ufffdt work with
> > QTR for a longer time and now, trying to come back and understand again
> > how things are working, i found something that confuses me.
> >
> > 1. I printed the Step-21-gray.tiff with Photoshop, no profile assigned.
> > 2. I measured the Lab numbers with QuickRead which is still on my
> > machine and i find it useful.
> > 3. I exported the measured values
> > 4. I drew the file on QTR-Linearize-Data.exe
> > 5. The programme generates the ..._out.txt without error messages.
> > Looking in it, all seems to be fine.
> > 6. I drew th ..._out.txt file on QTR-Create-ICC.exe. An ....ICC is
> > generated without error messages. So far so good.
> >
> > ...
> >
> > Best regards
> >
> > Rainer Taube
> >
> >
> >
>
> [Non-text portions of this message have been removed]
>
>

Re: [QuadtoneRIP] QTR Create ICC

2008-01-06 by Rainer Taube

Dear Roy,

again thanks, but let me add a question.

 From your descrition i understand, that always linearized Curves should 
be drawn on QTR-Create-ICC. But in an article of Paul Roark, Embedding 
Photoshop Curves in ICCs, 30.07.2007 i read "... The Create ICC program 
linearizes the system by taking the readings from the 21-step test strip 
and correcting for differences from the ideal distribution of 
densities." which gave me the idea, that the Create ICC itself will make 
the linarization. Is that wrong?

For better understanding what i\ufffdm trying to do a short description of my 
goal:
Sometimes i prefer to print BO instead of QTR and i thought, i could 
generate a profile for a paper/ink combination for BO-Printing by 
printing the step-wedge, measuring the densities, generating the profile 
and converting the image into the profile.

Seems that i actually don\ufffdt fully understand the linearisation process 
in this special case.

Best Regards and thank you very much for your continous support

Rainer Taube


Roy Harrington schrieb:
Show quoted textHide quoted text
>
> Hi Rainer,
> The two programs QTR-Linearize-Data and QTR-Create-ICC are both 
> designed to
> take the same kind of input -- what you get out of QuickRead. So the
> problem
> is putting the output of one in to the other one.
>
> Since they are so similar it's easy to confuse the different purposes.
> The QTR-Linearize-Data is used in creating and linearizing a QTR
> profile/curve.
> This is done without any ICC profiling at all.
>
> Once you have a linearized QTR curve you may want to ICC profile it so 
> that
> the
> color management features of Photoshop can be used. You'll print out a
> completely
> new stepwedge with the linearized curve, read it with QuickRead and use
> QTR-Create-ICC.
> The resultant ICC can be used as a print profile and for softproofing.
>
> Roy
>
> On Jan 5, 2008 8:45 AM, Rainer Taube <rainer@... 
> <mailto:rainer%40tauberlin.de>> wrote:
>
> > Hallo,
> >
> > my name is Rainer Taube, i\ufffdm from Berlin, Germany. I didn\ufffdt work with
> > QTR for a longer time and now, trying to come back and understand again
> > how things are working, i found something that confuses me.
> >
> > 1. I printed the Step-21-gray.tiff with Photoshop, no profile assigned.
> > 2. I measured the Lab numbers with QuickRead which is still on my
> > machine and i find it useful.
> > 3. I exported the measured values
> > 4. I drew the file on QTR-Linearize-Data.exe
> > 5. The programme generates the ..._out.txt without error messages.
> > Looking in it, all seems to be fine.
> > 6. I drew th ..._out.txt file on QTR-Create-ICC.exe. An ....ICC is
> > generated without error messages. So far so good.
> >
> > ...
> >
> > Best regards
> >
> > Rainer Taube
> >
> >
> >
>
> [Non-text portions of this message have been removed]
>
>

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