How I can use notch filter
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How i can use notch filter and apply on original image ?
Or what's the code can use to obtain the same result in shown image 4.6 .
thank you ...
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/564236/image.png)
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回答 (2 件)
Star Strider
2021 年 3 月 30 日
To subtract the frequency at (0,0) (essentially the D-C or constant offset), subtract the mean of the grayscale image from the image matrix (assuming a 2D, not 3D, image matrix).
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Help Center および File Exchange で Frequency Transformations についてさらに検索
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