Anti-imaging filter with cut-off frequency ωc = π/ I is specifically used _______ upsampling process for the removal of unwanted images.
A. Before
B. At the time of
C. After
D. All of the above
Answer:C
Anti-imaging filter with cut-off frequency ωc = π/ I is specifically used _______ upsampling process for the removal of unwanted images.
A. Before B. At the time of C. After D. All of the above