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Sebastian

PV2.1C: Monitor profiles / LUT profiles not recognized ?

Hello,

I just recalibrated my monitor with iColor Display. This time I used LUT type profiles for the first time instead of matrix type profiles. LR and other programs work fine, but now after resetting the profile in B5 PV2.1c the display is bugged.

Too much contrast, strange - in my case pink - colors. (The colors look like a completely wrong white balance.)

Regards,
Seb

System is MacOS 10.5, latest updates, on a MBP v2007.

Sebastian · Posted: Tue Jun 09, 2009 5:26 am Post subject:

btw ... switching off "monitor proofing" in the settings dialogue helps.

afx · Posted: Tue Jun 09, 2009 5:42 am Post subject:

Due to my own silliness I recently accidentally used a matrix profile on my Linux box. YUCK nice posterization.
I've redone the profile with a LUT table and it works just fine in Bibble 5.
I use Xrite (EyeMatch) and ArgyllCMS generated monitor profiles, and both work just fine with B5.

So the problem is not LUT but some other property of the profile.

And switching off monitor proofing disables the use of the profile in Bibble, so I would not call this helping Wink

cheers
afx

Sebastian · Posted: Tue Jun 09, 2009 5:58 am Post subject:

strange - you have the same problem, but exactly the oher way round. software didn´t change here. i used two versions of the same profile - it was created and then just saved one time as "lut" and one time as "matrix".

strange ..

afx · Posted: Tue Jun 09, 2009 6:20 am Post subject:

Run exiftool -g0 -D on your profile and compare with the attachment.
Are different fields present?

cheers
afx

Sebastian · Posted: Tue Jun 09, 2009 6:56 am Post subject:

mhh, have a look yourself:

Sebastian · Posted: Tue Jun 09, 2009 7:00 am Post subject:

As far as I see, the difference is, that iColor creates a profile in XYZ where Argyll uses Lab.

Seb

afx · Posted: Tue Jun 09, 2009 7:06 am Post subject:

Khaytsus · Joined: 17 Mar 2005 Posts: 202

Same problem here, I've applied a Argyll calibration the same way I would in B4 and everything looks awful now. I had to go back to the default Monitor profile.

Pretty sure I had done this before, so I think something has gotten recently broken in this regard.

afx · Posted: Wed Jun 10, 2009 8:35 am Post subject:

Khaytsus · Joined: 17 Mar 2005 Posts: 202

afx · Posted: Thu Jun 11, 2009 9:29 pm Post subject:

Hmm,
that is a LUT profile.

cheers
afx

dthorup · Posted: Thu Jun 11, 2009 11:32 pm Post subject:

Please upload the profiles to us so we can take a look here.

Khaytsus · Joined: 17 Mar 2005 Posts: 202

No problem.. Created with a Spyder 2 with Argyll. If you need any specifics about the commands used, I have made a script of it since i ran it on 5 machines, also ran it a few times experimenting with different qualities, etc.

tchetche · Joined: 20 Feb 2009 Posts: 33 Location: Strasbourg, France

Hello all,

I'm really interrested in color profiling, because I'm still not sure i do it correctly.
I use Argyll and a spyder2 on Linux, and with the help of some how-to i have created my icc file.

I use it with dispwin, and also in bibble5.

I can really see a difference when I load the calibration with dispwin, but in bibble5, I can load or not the profile, i see no change.

Is there something wrong?

I post my icc file, and also would like to know how you check to know if it's a LUT profile, because I think I have done it in this way.

Thanks for help Smile