Digital Image Processing
Homework 5, Due 2018/6/20
Problem 1
Ideal lowpass filter
Write a program to filter using ILPFs and obtain the results on Page 272, Figure 4.42.
Problem 2
Notch reject filter
Use the Butterworth notch reject filter to remove the Moire pattern on Page 296, Figure 4.64.
Problem 3
Contraharmonic mean filter
(a) Apply a 3×3 contraharmonic filter of order 1.5 to Fig0508(a)(circuit-board-pepper-prob-pt1).bmp.
(b) Apply a 3×3 contraharmonic filter of order -1.5 to Fig0508(b)(circuit-board-salt-prob-pt1).bmp
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