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Impulse noise in Order-statistic filter is also called as _______________

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Impulse noise in Order-statistic filter is also called as _______________

(a) Median noise

(b) Bilinear noise

(c) Salt and pepper noise

(d) None of the Mentioned

This question was posed to me in unit test.

This key question is from Smoothing Spacial Filters in chapter Intensity Transformations and Spatial Filtering of Digital Image Processing

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The correct option is (c) Salt and pepper noise

Explanation: It is called salt-and-pepper noise because of its appearance as white and black dots superimposed on an image.

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