Ambient light setting change

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  • #4389

    Steve Smith
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    What is ‘Preserve calibration state’ in your loader used for?  … Doesn’t the calibration stay loaded until I change it anyway?

    What situations is it used for?

    Thanks.

    #4390

    Steve Smith
    Participant
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    *Important*

    I think I made a big mistake…

    If I do a clean install of Argyll, do I need to re-import my meter corrections? … The correction is still in the drop-down box and I selected it, however, I’ve notice that when I install other profiles, then come back to the first, that the corrections field becomes empty! … Is the profile correction saved with it’s settings?

    I think I ran an 11,000’er thinking that a correction was being applied, but maybe it was in name only (ie. Not connected to the actual correction file.)

    What do you think?

    #4395

    Steve Smith
    Participant
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    Hi.

    Is there any difference in the final quality of a ‘CIECAM02 condition’ when I set it to take place during the initial creation of the calibration\profile vs. recalculating it afterwords?  Or will both outcomes be exactly the same?

    #4399

    Florian Höch
    Administrator
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    What is ‘Preserve calibration state’ in your loader used for? … Doesn’t the calibration stay loaded until I change it anyway?

    Basically it’s an on/off switch for the loader (not for the calibration). The loader reloads calibration every three seconds or so to make sure it is not lost ().

    If I do a clean install of Argyll, do I need to re-import my meter corrections? …

    Only if you deleted them.

    Is the profile correction saved with it’s settings?

    Yes.

    Is there any difference in the final quality of a ‘CIECAM02 condition’ when I set it to take place during the initial creation of the calibration\profile vs. recalculating it afterwords?

    Exactly the same.

    #4400

    Steve Smith
    Participant
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    The brightness in my working environment varies between 7 cd/m2 – 20cd/m2   What should I set the ‘CIECAM02 working environment to?  (Typical, darkened, or bright.)

    What room-brightness is is suggested for each? … Online gives 4 categories, not three, and I confused. Lol!

    Thanks.

    • This reply was modified 7 years, 7 months ago by Steve Smith.
    #4403

    Florian Höch
    Administrator
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    The brightness in my working environment varies between 7 cd/m2 – 20cd/m2

    That would qualify as dim, so “darkened” would be the closest preset.

    What room-brightness is is suggested for each? … Online gives 4 categories, not three, and I confused. Lol!

    There is no suggested room brightness – CIECAM02 models color appearance according to human vision, and this is a quite complex and involved topic. You can choose one of the viewing condition presets that comes closest to your actual viewing conditions.

    #4416

    Steve Smith
    Participant
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    Hello.

    I just thought you’d want to know for your next update… See attached dialog box. Spelling error: “Dow you want to…”

    I think you meant to say “Do” not “Dow”

    Please don’t be offended, I’m just trying to help.

    🙂

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    #4420

    Florian Höch
    Administrator
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    I think you meant to say “Do” not “Dow”

    Yep, that’s a typo – thanks!

    #4422

    Steve Smith
    Participant
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    I wonder. Can I change the back light on my HDTV, or would that invalidate the current calibration\profile?

    Thanks.

    #4425

    Florian Höch
    Administrator
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    Can I change the back light on my HDTV, or would that invalidate the current calibration\profile?

    Depends on how much the display response changes by adjusting the backlight after the fact. A small change probably hasn’t much effect. You can run a measurement report before and after to figure out how much the change affects the result.

    #23974

    shmimpton
    Participant
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    Florian, you mention:

    You can just change the profiling settings and then use “Create profile from existing measurement data…” in the options menu and select the existing profile, then save to a new name.”

    But I can’t find “Create profile from existing measurement data” anywhere in the GUI. I wonder if the name of the command has changed?

    I’d like to try out the workflow in this post, but can’t do it until I can figure out how to do that step.

    Thanks!

    #23975

    Steve Smith
    Participant
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    Under “file” choose  “Create profile from measurement data”

    And make and make sure you have the latest version of displayCal  3.8.9.3

    #23978

    shmimpton
    Participant
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    Gah! I was thrown by the “options menu” instruction – can’t believe I didn’t look in the File menu. Thanks!

    #23979

    shmimpton
    Participant
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    One of the options in the Advanced gamut mapping options window is “Source profile.” It’s currently set to sRGB IEC61966….

    Not sure if I should leave that or change it to Rec. 709 (which is the tone curve I’m using on the Calibration tab…) or something else.

    #23980

    Steve Smith
    Participant
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    I think both profiles are essentially the same

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