images in cross-platform stacks
ambassador at fourthworld.com
Wed May 17 14:24:55 CDT 2006
Martin Baxter wrote:
> Richard Gaskin wrote:
>> It's a tradeoff: the Apple gamma may give more detail among darker
>> colors, but at the loss of detail among lighter ones. The default gamma
>> for Macs is so light that the whole thing looks washed out to me; the
>> first thing I do when I get a new Mac is make it readable by increasing
>> the gamma.
> Ah, but, I would say the point is that the lighter values are
> over-represented in the first place, gamma correction just helps to give
> the shadows a bit more of a look-in.
> When I used to teach Photoshop I would sometimes have students bring in
> images they'd made on their PC's at home. They would be disgruntled
> because their images looked all washed-out on the Mac.
> Then I would have them examine the histogram of their image data, which
> would always turn out to have no pixel values lower than about 35,35,35
> and sometimes worse than that, nothing lower than 40 or 50. Why in that
> case should the computer display any black?
> Colour-management is supposed to get around these issues as far as
> possible, and it does a great job when set up correctly. But in the
> wider world where systems are generally uncalibrated, uncorrected, badly
> adjusted, badly-sited, old, cheap, mobile and so on, it's rather
> irrelevant. None of my equipment is what I'd consider calibrated in
> fact, how about yours?
Only by eye: ever since I set my Mac's gamma to PC levels I can see so
many more details in the Mac OS that were completely washed out before. :)
I appreciate the background info on pro graphics. It helps to understand
a bit more about why Apple does the things it does. Sometimes it's not
just another case of the ol' light bulb joke. ;)
Not being a graphics pro, I don't care one way or the other what the
gamma's set to, as long as it's consistent across platforms. If Apple's
default setting is a better match to the real world, will PC
makers/Microsoft follow suit?
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