I am trying to use argyllCMS in a kind of unusual way: creating an abstract profile not to make an already existing profile even better but to create an abstract profile to be used by itself to change the appearence of certain images.
As suggested by mcjam45 I am trying to compare tiff files, original and edited, for extracting the values and subsequently creating a profile.
In order to do so in Argyll this is what I've been doing:
1) Create the targets with the command (I also include the options I've used):
targen -d3 -G -s128 refx
targen -d3 -G -s128 refy
This generates ideantical files: refx.ti1 and refy.ti1
2) Generate the files to be printed from these files with:
printtarg -iSS -h -r -s -T refx
printtarg -iSS -h -r -s -T refy
This generates the following: refx.tif, refx.ti2, refx.cht and refy.tif, refy.ti2, refy.cht
3) I open refy.tif in photoshop and I apply the changes I want the abstract profile to reproduce (i.e. curves, levels, selective color, etc). I close the levels and I simply save.
4) I convert the tif images values into *.it3 files with the command:
scanin refx.tif refx.cht refx.ti2
scanin refy.tif refy.cht refy.ti2
I obtain therefore: refx.it3 and refy.it3
5) I use the command refine to generate the abstract profile:
refine -c -g -R refy.ti3 refx.ti3 abs.icc
The thing is that when I open refx.tif in photoshop (the unmodified test chart) and I apply the abs.icc profile with the special layer "color look-up", it seems like nothing happened!
I even tried to convert the images to LAB with Absolute Colorimetric intent (as in the past it solved many issue I had) nothing change...
Am I missing something?
Also, when creating the *.ti3 file from the modifed *.tif image I get this message:
"TIFFReadDirectory: Warning, tab2.tif: wrong data type 7 for "RichTIFFIPTC"; tag ignored."
But then, everything seems to be working properly and the *.ti3 file is generated.
Thank you very much!