is it right for an RGB image to calcule the variance with simple this way?

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bay rem
bay rem am 5 Feb. 2016
Beantwortet: Walter Roberson am 5 Feb. 2016
is it right for an RGB image to calcule the variance with var(image(:))?? not to calcul the variance of 3 chanels Red green blue?

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Walter Roberson
Walter Roberson am 5 Feb. 2016
Yes that is often used. Working channel by channel has its uses as well.

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