How I can use notch filter

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Emad Alamri
Emad Alamri on 27 Mar 2021
Answered: Star Strider on 30 Mar 2021
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 ...

Answers (2)

Pratheek Punchathody
Pratheek Punchathody on 30 Mar 2021
Similar query has been addressed in the community. Refer to the following Link.
Also refer to the documentation on "fdesign.notch" for more information.

Star Strider
Star Strider on 30 Mar 2021
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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