How do I select a rectangular region of interest with a hole in it
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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.
![](/matlabcentral/answers/uploaded_files/123381/saved.png)
Please don't ask me why, I just need a solution because i can't find anything on the web.
回答(1 个)
KARSH THARYANI
2018-6-29
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.
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