På Sun, 04 Nov 2012 12:54:02 +0100, skrev Monty Montgomery
<[email protected]>:
Now what about formats whose white point is far below the
max value, like some higher depth formats?
The higher-depth formats I know of (and I'm asking because I'm sure
there are ones I don't know of) still define swing in terms of the 8
bit range, and just tack on additional bits.
The TV-oriented video formats do.
http://www.avsforum.com/t/1432394/do-hd-studio-cameras-use-studio-swing-pixel-mapping
But then there are cinema-oriented formats,like Digital Intermediates
and such.
http://www.reduser.net/forum/printthread.php?t=2714&pp=10&page=310
What is the
most, like, do-what-I-mean course of action there?
If there are in fact multiple possible studio swings in common use, it
may be necessary to allow the user to define the pipeline swing. Are
there?
There is 10-bit log, where the white point may be around 700,
rather than 940. If you hardcode the white level to 93% those
images will look dull out of the box. But then again, they are
usually supposed to go through colour grading to look right.
But which parts of Cinelerra have to be aware of the intended
black-to-white range? Could the black and white points simply
be display and export settings?
I suppose a fancy colour correction plugin would need to know
those levels, so they ought to be exposed in the API, though.
--
Herman Robak
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