How to compute variance of image in windows?
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I read a paper about Guided Image Filtering. For edge preserving:
where is defined as the variance of input image whose centre is .
How to compute it in Matlab?
Thankyou.
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Bjorn Gustavsson
el 15 de Mzo. de 2019
If you have the image-processing toolbox have a look at wiener2:
edit wiener2
In there you can see how the local variance is calculated.
HTH
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