Discounting the illuminant (health) and decide (oh)

Discounting the illuminant (health)

Illumination of the visual world tens to be non-uniform, and fluctuates. in order for the visual system to create a consistent perception of color and lightness it must somehow discount fluctuation and gradient in the lighting source.

decide (oh)

[Date: 1300-1400; Language: French; Origin: decider, from Latin decidere 'to cut off, decide']
[I and T] to make a choice or judgment about something, especially after considering all the possibilities or arguments
-see also decision decision
::Has anything been decided yet?
decide to do sth
::Tina's decided to go to Prague for her holidays.
decide (that)
::It was decided that four hospitals should close.
decide who/what/whether etc
::I can't decide whether I like him or not.
::People have a right to decide how to spend their own money.
decide between sth
::A meeting was called to decide between the three candidates.
decide for yourself
(=make your own decision)
::You must decide for yourself.
::The trainees decide among themselves what programs to take.
decide against/in favour of (doing) sth
::He eventually decided against telling Georgina.
::After a long discussion, they decided in favour of (=chose) the younger applicant.
[T] to influence a situation or event so that a particular result is produced
::It was the penalty kick that decided the match.
[T] to be the reason for someone making a particular choice
::Taxes could be the deciding factor for millions of floating voters.
decide sb to do sth
::The look he gave her decided her not to ask.
[I and T] law to make an official or legal judgment
::The Commission will have the power to decide disputes.
decide in favour of/against sb
::If the Parole Board decides in his favour, the prisoner will be released.
decide on/upon [decide on/upon sth] phr v
to choose something or someone after thinking carefully
::Have you decided on a date for the wedding?

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