Which of the following filter(s) attenuates high frequency while passing low frequencies of an image?
A. Unsharp mask filter
B. Lowpass filter
C. Zero-phase-shift filter
D. All of the mentioned
Answer:B
Which of the following filter(s) attenuates high frequency while passing low frequencies of an image?
A. Unsharp mask filter B. Lowpass filter C. Zero-phase-shift filter D. All of the mentioned