What is the need of calculating mean,variance for an image

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Nithya SIvasamy
Nithya SIvasamy am 14 Apr. 2018
Beantwortet: Jan am 15 Apr. 2018
What is the need of calculating mean,variance for an image

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Jan
Jan am 15 Apr. 2018
Mean and variance of what? The R, G and B channels of a color image? Or of the intensities of gray channels? This can be needed e.g. for comparing a set of images, determining the sharpness or information density. There is a variety of applications, so asking for the "need" is hard to answer. What is the need of the mean and the variance in statistics?

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