convolution in frequency domain

https://blog.csdn.net/myjiayan/article/details/72427995

convolution in frequency domain

convolution in spatial domain == multiplication in frequency domain.

 

FFT Fast Fourier Transform

smoothing and blur

 

low and high pass filter

properties of Fourier Transform

Fourier pair

 

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作者：matdodo
来源：CSDN
原文：https://blog.csdn.net/myjiayan/article/details/72427995
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