Unsharp masking can be implemented directly in frequency domain by using a filter: Hhp(u, v) = 1 – Hlp(u, v), where Hlp(u, v) the transfer function of a lowpass filter. What kind of filter is Hhp(u, v)?(a) Composite filter(b) M-derived filter(c) Constant k filter(d) None of the mentionedThe question was asked in homework.This is a very interesting question from Unsharp Masking, High-boost filtering and Emphasis Filtering topic in section Intensity Transformations and Spatial Filtering of Digital Image Processing

Unsharp masking can be implemented directly in frequency domain by usi

1.	Unsharp masking can be implemented directly in frequency domain by using a filter: Hhp(u, v) = 1 – Hlp(u, v), where Hlp(u, v) the transfer function of a lowpass filter. What kind of filter is Hhp(u, v)?(a) Composite filter(b) M-derived filter(c) Constant k filter(d) None of the mentionedThe question was asked in homework.This is a very interesting question from Unsharp Masking, High-boost filtering and Emphasis Filtering topic in section Intensity Transformations and Spatial Filtering of Digital Image Processing
Answer» Correct choice is (a) Composite filter To explain I would SAY: UNSHARP masking can be IMPLEMENTED directly in frequency DOMAIN by using a composite filter: Hhp(u, v) = 1 – Hlp(u, v).

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