[Solved] Imageprocessing Exercise8

Exercise 08a. Let I be the input image in file isn_256.pgm, which has a binary impulsive noise added (salt-and-pepper noise). Let B be a structuring element square of size 3.

Compute:

Filter 1: opening_B (I)

Filter 2: closing_B (I)

Filter 3: closing_B (opening_B (I))Filter 4: opening_B (closing_B (I))

Indicate which are the two best filters to eliminate the noise in output file: exercise_08a_output_01.txt (particularly, the first two lines should contain the filter numbers (1-4)).

Note: image isn_256.pgm is attached.