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Which of the following filtering is done in frequency domain in correspondence to lowpass filtering in spatial domain?

Which of the following filtering is done in frequency domain in correspondence to lowpass filtering in spatial domain? Correct Answer Gaussian filtering

A plot of Gaussian filter in frequency domain can be recognized similar to lowpass filter in spatial domain.

Related Questions

If, Fhp(u, v)=F(u, v) – Flp(u, v) and Flp(u, v) = Hlp(u, v)F(u, v), where F(u, v) is the image in frequency domain with Fhp(u, v) its highpass filtered version, Flp(u, v) its lowpass filtered component and Hlp(u, v) the transfer function of a lowpass filter. Then, unsharp masking can be implemented directly in frequency domain by using a filter. Which of the following is the required filter?
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