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

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Nithya SIvasamy
Nithya SIvasamy le 14 Avr 2018
Réponse apportée : Jan le 15 Avr 2018
What is the need of calculating mean,variance for an image
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Rik
Rik le 14 Avr 2018
That will depend entirely on your application.

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Jan
Jan le 15 Avr 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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