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High pass filter a signal in the frequency domain

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NC 2018-6-18
评论： John Navarro 2020-5-11
I have converted an image into frequency domain using fft2() function. Now I want to extract only the high frequency components. How to solve this?
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John Navarro
John Navarro 2020-5-11
Use the app for filter design.
But first define what is high frequency for your case? For example in my project all signal over 10Hz is defined as High-frequency, in other applications it refeers to components over 10KHz.

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