Subject:
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Re: Color chart
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Newsgroups:
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lugnet.faq
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Date:
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Mon, 29 May 2000 20:40:58 GMT
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Viewed:
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2366 times
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I can explain this somewhat. I worked on Apple system software in graphics for
many years.
The Macintosh, which Suzanne uses, is set up to attempt to show each level of gray
equi-distant from each other, as the eye sees it. This is done by applying a curve
to the pixel output, which is the 1.8 gamma curve Suzanne mentioned. According to
my Macintosh, the PC defaults to a 2.2 gamma, but I've seen PCs that do no gamma
correction at all. I just went through my color calibration on Mac OS 9, and I had
a host of incorrect settings. Now when I look at Suzanne's chart, it looks much
better.
Does anyone know of a utility to calibrate a PC screen? If Shiri is using a PC
without gamma correction, then lighter colors on the Mac will appear much lighter
on the PC.
Suzanne, I don't know if you want to bother, but for the PC populace you may want
to consider recalibrating with gamma turned off. I guess the extreme would be to
provide a chart with no gamma, 1.8 Mac gamma and 2.2 PC gamma. Now that I'm
writing this, I'm thinking that a little JavaScript might be able to select the
appropriate gamma at runtime. I'll have to dig up my gamma code and see if I can
throw something together.
Cary
Shiri Dori wrote:
> In lugnet.faq, Suzanne D. Rich writes:
> > But to answer your question, I (in daylight) hold the element above and beyond
> > my monitor, turning it this way and that. Then I'm look at the monitor color
> > and
> > element for comparison. If I held the element in _front_ of the monitor, my
> > eyes
> > would have everything screwey. Also, it's a bit like looking at a comet in the
> > night's sky. if you look straight at it, you won't see it as well as you can
> > from your peripheral vision.
...
> Uh, yes. Definitely. Major headache coming right along.
> Like I said, my monitor is just plain weird. But I'm using default PC windows
> settings.
>
> -Shiri
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Message has 1 Reply:
 | | Re: Color chart
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| (...) cool! (...) Actually, I have a dual monitor setup here. Running OS 9.0.4, I have two main calibration settings saved. One for a PC view on my iMacSE screen (gamma 2.2) and the other is set up for mirroring over to my ViewSonic PT775 (which has (...) (24 years ago, 29-May-00, to lugnet.faq)
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Message is in Reply To:
| | Re: Color chart
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| (...) OK, I see what you mean; but even when I do that, the color is *way* off my brick-pink. As you said, definitely monitor settings- I'm sure it looks better on your computer... itprobably has to do with the fact that I have a flat monitor (just (...) (24 years ago, 29-May-00, to lugnet.faq)
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