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

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Johann Berrangé
Johann Berrangé 2018 年 6 月 29 日
コメント済み: KARSH THARYANI 2018 年 7 月 13 日

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.

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KARSH THARYANI
KARSH THARYANI 2018 年 6 月 29 日
Can you use the image processing toolbox?

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回答 (1 件)

KARSH THARYANI
KARSH THARYANI 2018 年 6 月 29 日
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.
  2 件のコメント
Johann Berrangé
Johann Berrangé 2018 年 6 月 29 日
No, there is a specific reason why I cant't do that
KARSH THARYANI
KARSH THARYANI 2018 年 7 月 13 日
May I know that reason, so that I can suggest an appropriate alternative?

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