Hmmm, do you know for sure that's why they recommend it as a
whitepoint? Seems odd to tie your viewing whitepoint to the details of
the input side (especially since that means negative in motion
picture). Wouldn't you want it to be based on something like the
viewing conditions in a theatre?
Also most scanners I can think of use silicon detectors which I would
think would have a very wavelength dependent response (blue would be
very much lower)?
I'm not sure I'd call that a reasonable compromise, I don't think there
is a workable compromise between those two colors. But I guess I
wouldn't think of it in that way.
On May 23, 2005, at 2:07 PM, Bob Friesenhahn wrote:
The radiant energy accross the visible wavelengths is about as uniform
as it can be at 5400K so 5400K is a special case in that regard. If
you were scanning some film and your RGB sensors had similar
sensitivity, then 5400K would produce the most uniform results. Hotter
blackbody temperatures emphasize the purples and blue, while cooler
temperatures emphasize the reds. Even 6500K emphasizes the blues a
bit.
Daylight averages 6500K and incandescent lighting is around 3000K so
5400K is also a reasonable compromise in that regard.
The first thing I do when I set up a new computer monitor is to adjust
the color temperature so that it is not cranked up to an eye-ball
scalding color temperature like 9200K.
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