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RE: [Digital BW] How Photoshop uses monitor profile?

2005-09-13 by Paul D. DeRocco

> From: Richard
>
> When windows started, I could see that the profile was applied, screen
> colours changed, and then later during startup, they flipped back to what
> looked like the default profile (in any case just a lot brighter in my
> case). In Startup, there was a utility called Logo Calibration Loader, run
> from the i1 installation folder. I have no idea what this is
> supposed to do,
> and didn't bother to find out, but I disabled it, and the monitor reverted
> to the profiled colours I was expecting.
>
> There is also the Adobe Calibration Loader utility which I assume tries to
> load the profile saved during the Adobe Gamma process- I disabled that.
>
> Sorry I have no technical input on the whys and wherefores of
> this process, but it seemed to work for me

That's the wrong thing to do. The Logo Calibration Loader is the thing that
loads the calibration tables produced by your Eye-One software. The monitor
profile describes the response of the system after those tables are loaded.
If you disable this software, then your monitor profile no longer
corresponds to your monitor, and everything will come out wrong. You may
"like" the colors you see, but they're not what the numbers are describing
at that point, and you have no reason to expect they'll agree with what
comes out of the printer.

The reason you saw two changes in screen appearance during startup is that
it was running the Logo Calibration Loader _and_ the Adobe Gamma Loader.
Since you're using a profile that corresponds to the former, it is correct
to disable the latter.

--

Ciao,               Paul D. DeRocco
Paul                mailto:pderocco@...

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