Possibility to convert csv-file with only L*A*B* values into a ArgyllCMS ti3 file

[pharmacist]

I have just found this link of the manufacturer of the CR30.

https://www.chnspec.net/Spectral-Colorimeter-CR-30.html

It does specifiy: spectrophotometer and look at the spectral range: 400-700 nm in 10 nm steps, which very similar to the 380-730 nm range of the i1Pro2 (also in 10 nm steps). This might contribute to the very good results in generating RGB-printer profiles with ArgyllCMS. It should be superior to the Spyderprint device that only uses color filters to establish the LAB-values (not a true spectrophotometer).

 

[knowing]

The software runs on Windows only and needs a com-port: maybe a virtualisation is possible in MacoS. The software is called ColorQC2 and is necessary to capture the LAB-values and the spectral data needed by ArgyllCMS to create the printer profile.

Ok, thanks.

 

[pharmacist]

I have made a new A4 target with pseudo-scrambled patches for the CR30 with 300 patches and 21 grey steps. I will upload it later with a rudimentary how-to manual if I have some time, because it is rather busy at work now.

 

[Epatcola]

Update to target and profile generating batch files and scripts.

The ti3 generation script didn't properly handle targets with more than 26 columns.

Also included is a csv file from ColorQC 2 for a 728 patch target. You can use this to go through the process of ti3 file and profile generation and checking.

 

[superjudge]

Long time listener, first time caller. I tweaked the batch files in Epatcola's AWK scripts to generate 10mm patches using -a1.25 and set it to create 25 patch columns on letter-sized paper. Made it WAY easier to scan patches for me after trying repeatedly with 8mm patches. I was able to fit 450 patches on one sheet of letter, and it resulted in a profiles that I'm honestly VERY happy with. I was getting a lot of jaggy edges on the visualization for the 300x8mm patch scans.

 

[pharmacist]

you're welcome. Happy to see another person able to generate a printer profile using the CR30 colorimeter.