Unsharp masking can be implemented directly in frequency domain by using a filter: Hhp(u, v) = 1 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 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 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 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 mentioned
Answer» B. M-derived filter

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Unsharp masking can be implemented directly in frequency domain by using a filter: Hhp(u, v) = 1 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 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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