Re: BasICColor Display
Re: BasICColor Display
- Subject: Re: BasICColor Display
- From: Roger Breton <email@hidden>
- Date: Tue, 11 Jan 2005 12:26:55 -0500
It is presently 12:00 noon, here, in the Eastern part of Canada. My Eizo
CG21 is calibrated to D50/L* gamma with an EyeOnePro and the help of
basICColor Display 3.0.4. I must say the "appearance" of my Eizo varies with
the level and quality of ambient light that falls over it. And that varies
throughout the phase of the day. Right now, my humble office is bathing in a
beautiful joyful winter daylight with some rays of direct sunlight being
reflected on the gray N8 painted walls.
On my G4.3.8, I have my desktop background image set to a modified version
of Apple's "Classic Aqua Graphite", that I simply desaturated in Photoshop
and converted to grayscale with a gamma of 2.2. I've built myself a digital
version of the Macbeth ColorChecker chart in InDesign CS, filling all 24
patches with Lab values I got off EyeOnePro in D50/2, straight of my
physical Macbeth chart. I exported the InDesign CS artwork to PDF with Leave
Unchanged option.
Now, in Photoshop CS, I opened up the Exported PDF in Lab mode, at 100dpi.
And, you guessed right, I then put my physical ColorChecker chart right next
to displayed image for comparison, and what do I get? Not a perfect match
but a pretty close one. Except for a slight cast of red in the gray patches
at the bottom (which bugs me a little), all the other patches bear a
striking ressemblance to the original. If this is serendipity then something
is definitely working right.
For the record, the way my Eizo is oriented on my desk, roughly parralel to
the window, it receives exactly 476 Lux of light with chromaticities of x =
0.350 and y = 0.357 or 4837K CCT. Very close to D50 indeed.
Hope I did not forget anything...
Have a nice D50 calibrated sunny day all,
Roger Breton | Laval, Canada | email@hidden
http://pages.infinit.net/graxx
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