How do I select a rectangular region of interest with a hole in it

Hi everyone. Can anyone please advise me on how I can select a rectangular region of interest with a hole in on an image, I wan't to do filtering on this area. So basically if you look at the attached image, I want to select the hatched region in the image and only filter that area with a motion blur filter.

Please don't ask me why, I just need a solution because i can't find anything on the web.

[KARSH THARYANI]

Can you use the image processing toolbox?

Answer 1

[KARSH THARYANI]

Given an image, you can make the inner region as zero. Apply the Gaussian (or your motion blur filter). Then, on this image, copy the elements that you made zero.

[Johann Berrangé]

No, there is a specific reason why I cant't do that

[KARSH THARYANI]

May I know that reason, so that I can suggest an appropriate alternative?