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

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bay rem
bay rem el 5 de Feb. de 2016
Respondida: Walter Roberson el 5 de Feb. de 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 el 5 de Feb. de 2016
Yes that is often used. Working channel by channel has its uses as well.

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