Question: 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)?
Options
A : Composite filter
B : M-derived filter
C : Constant k filter
D : None of the mentioned
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