Datacolor User to User Support Group.

Hi all,

I've found a free tool from GretagMacbeth which can be very
helpful in comparing two measurements visually. The utility is
called ColorLab and can be downloaded from GretagMacbeth.
It's found as an additional download under the ProfileMaker product
or perhaps you can get it directly from this URL:

http://www.gretagmacbeth.com/downloads/400_colorlab_pc-en.zip

A Mac version is also available!

All you have to do is to export your measurements via the Tools->Export
menu function. After that you must format the exported data a little bit to
make it readable for the ColorLab tool:

Exported data - only 15 lines:

21,39    -2,68    1,32
21,41    4,44    -6,63
23,86    9,74    -21,62
24,63    13,16    -28,93
24,98    15,56    -33,75
24,14    9,16    4,80
21,66    7,89    -0,53
24,25    14,21    -11,19
25,37    18,10    -19,00
25,67    20,55    -24,85
34,21    33,57    17,26
29,27    27,73    6,22
29,39    29,09    -3,90
29,27    30,49    -11,05
29,11    31,72    -17,33

After reformating:

Sample_Name Lab_L    Lab_a    Lab_b    
END_DATA_FORMAT              
BEGIN_DATA             
A1    21,39    -2,68    1,32
A2    21,41    4,44    -6,63
A3    23,86    9,74    -21,62
A4    24,63    13,16    -28,93
A5    24,98    15,56    -33,75
A6    24,14    9,16    4,8
A7    21,66    7,89    -0,53
A8    24,25    14,21    -11,19
A9    25,37    18,1    -19
A10    25,67    20,55    -24,85
A11    34,21    33,57    17,26
A12    29,27    27,73    6,22
A13    29,39    29,09    -3,9
A14    29,27    30,49    -11,05
A15    29,11    31,72    -17,33
END_DATA             

Usually you will need the complete 225 data cells, but to show
the concept this might be ok. I can supply an Excel or OpenOffice Calc
template, if anybody wants to try it. Now you only have to start the
ColorLab, Open your text file (one or more), which will be rendered
as test targets and compare the data via Specials->Comparing. Also
quite nice is the 3D view under Tools.

The whole procedure it a whole lot easier to do then to describe -
see a screenshot here:

http://www.rj-photo.de/printfix-pro/ColorLab-Screenshot.jpg

Measurement files are also there:

http://www.rj-photo.de/printfix-pro/ESP2100-Archival-1440_ex.txt
http://www.rj-photo.de/printfix-pro/ESP2100-Archival-720_ex.txt

and the Excel or OpenOffice Calc template:

http://www.rj-photo.de/printfix-pro/ColorLab-Data.xls
http://www.rj-photo.de/printfix-pro/ColorLab-Data.ods

I think it's really helpful to compare your measurements this way.
It's even interesting to see the differences printing the targets with
720 or 1440 dpi.


Ronald
--

Normally I don't reply to myself,

but I just put it all up to my web space including
some screen shots under these URL:

http://www.rj-photo.de/printfix-pro/index.html

It's a bit better to understand then the text only.

Ronald
-- 

> Hi all,
> 
> I've found a free tool from GretagMacbeth which can be very
> helpful in comparing two measurements visually. The utility is
> called ColorLab and can be downloaded from GretagMacbeth.
> It's found as an additional download under the ProfileMaker product
> or perhaps you can get it directly from this URL:
> 
> http://www.gretagmacbeth.com/downloads/400_colorlab_pc-en.zip
> 
> A Mac version is also available!
> 
> All you have to do is to export your measurements via the Tools->Export
> menu function. After that you must format the exported data a little bit to
> make it readable for the ColorLab tool:
> 
> Exported data - only 15 lines:
> 
> 21,39    -2,68    1,32
> 21,41    4,44    -6,63
> 23,86    9,74    -21,62
> 24,63    13,16    -28,93
> 24,98    15,56    -33,75
> 24,14    9,16    4,80
> 21,66    7,89    -0,53
> 24,25    14,21    -11,19
> 25,37    18,10    -19,00
> 25,67    20,55    -24,85
> 34,21    33,57    17,26
> 29,27    27,73    6,22
> 29,39    29,09    -3,90
> 29,27    30,49    -11,05
> 29,11    31,72    -17,33
> 
> After reformating:
> 
> Sample_Name Lab_L    Lab_a    Lab_b    
> END_DATA_FORMAT              
> BEGIN_DATA             
> A1    21,39    -2,68    1,32
> A2    21,41    4,44    -6,63
> A3    23,86    9,74    -21,62
> A4    24,63    13,16    -28,93
> A5    24,98    15,56    -33,75
> A6    24,14    9,16    4,8
> A7    21,66    7,89    -0,53
> A8    24,25    14,21    -11,19
> A9    25,37    18,1    -19
> A10    25,67    20,55    -24,85
> A11    34,21    33,57    17,26
> A12    29,27    27,73    6,22
> A13    29,39    29,09    -3,9
> A14    29,27    30,49    -11,05
> A15    29,11    31,72    -17,33
> END_DATA             
> 
> Usually you will need the complete 225 data cells, but to show
> the concept this might be ok. I can supply an Excel or OpenOffice Calc
> template, if anybody wants to try it. Now you only have to start the
> ColorLab, Open your text file (one or more), which will be rendered
> as test targets and compare the data via Specials->Comparing. Also
> quite nice is the 3D view under Tools.
> 
> The whole procedure it a whole lot easier to do then to describe -
> see a screenshot here:
> 
> http://www.rj-photo.de/printfix-pro/ColorLab-Screenshot.jpg
> 
> Measurement files are also there:
> 
> http://www.rj-photo.de/printfix-pro/ESP2100-Archival-1440_ex.txt
> http://www.rj-photo.de/printfix-pro/ESP2100-Archival-720_ex.txt
> 
> and the Excel or OpenOffice Calc template:
> 
> http://www.rj-photo.de/printfix-pro/ColorLab-Data.xls
> http://www.rj-photo.de/printfix-pro/ColorLab-Data.ods
> 
> I think it's really helpful to compare your measurements this way.
> It's even interesting to see the differences printing the targets with
> 720 or 1440 dpi.
> 
> 
> Ronald