How to EFTTR (expose further to the right)

Started Aug 23, 2012 | Discussions thread
Iliah Borg
Forum ProPosts: 15,929
Like?
Re: Seems very inefficient.
In reply to Detail Man, Aug 25, 2012

CCT can help with only one axis, close to "b" in Lab terms (blue-yellow opposite, though it is not normal blue as we perceive it, minus yellow to yellow would be a better description). The "tint" axis is close to "a", that is magenta-green opposition.

The usual way to achieve WB is to equalize response of all colour channels over a grey (or synthetic grey, as in the grey world model) and is performed in RGGB domain. This is based on the theory of equalizing colour channel sensitivities using achromatic colours as a reference.

The "chromatic adaptation" way of achieving white balance is acting over XYZ, that is the ACR/LR way.

All cameramakers who do not adopt DNG stay with the first method.

Reply   Reply with quote   Complain
Post (hide subjects)Posted by
Ah!New
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark post MMy threads
Color scheme? Blue / Yellow