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)?

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.	tComposite filter
B.	tM-derived filter
C.	tConstant k filter
D.	tNone of the mentioned
Answer» B. tM-derived filter

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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)?

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