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How to find a variance to an image

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mani
mani 2011-2-2
I used var(image(:)) but i am getting wrong answer.

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Andreas Goser
Andreas Goser 2011-2-2
The IMAGE function returns a handle, see
http://www.mathworks.com/help/techdoc/ref/image.html
I expect VAR over a handle is not what you like to get.
A specifc example and an explanation what a "wrong answer" is exactly will help the community to be able to help you.

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