Scanner Profiling Issue
Scanner Profiling Issue
- Subject: Scanner Profiling Issue
- From: Chase via colorsync-users <email@hidden>
- Date: Wed, 13 May 2020 22:58:04 +0000 (UTC)
Hi,
I've been trained to profile digital devices by (after calibration) first
turning off all color management meaning no profile application to the output,
making a "raw" output and opening it in a profiling application to make an ICC
input profile.
I'm running into a problem trying to profile a scanner whose software interface
will not allow you to turn off the color management on any scan. I was told by
the manufacturer to just discard the embedded profile (in Photoshop) prior to
creating and opening the now supposed "raw" scan used to make a profile in
Xrite or other applications.
When tested in Photoshop, the supplied initial embedded profile supplied and
recommended to use during profiling by the manufacturer raised all the "L"
values about seven "L" so it did change the "raw" values of the scanner for
every scan. To my mind, if a "raw" scan is not truly "raw," it will not profile
correctly. Testing the resulting new input profile had problems with tone
values, gray and color hues.
Therefore, their assumption of just discarding a profile in Photoshop will not
create a truly "raw scan?" I have not seen it. Any ideas? Is there any way I
can traditionally profile this type of scanner? That is the problem I am trying
to solve.
Thanks for your opinion,
Randy ZauchaManaged Color
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