How to compute variance of image in windows?

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Yohanes Setiawan 2019 年 3 月 15 日

コメント済み: Bjorn Gustavsson 2019 年 3 月 15 日

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.

KSSV 2019 年 3 月 15 日

Read about var

Bjorn Gustavsson 2019 年 3 月 15 日

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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