Question

Median filters are effective in the presence of impulse noise.

(a) True

(b) False

I have been asked this question in an international level competition.

I would like to ask this question from Smoothing Spatial Filters in chapter Intensity Transformations and Spatial Filtering of Digital Image Processing

Answer 1

Right choice is (a) True

The explanation: Median filters are used to remove impulse noises, also called as salt-and-pepper noise because of its appearance as white and black dots in the image.