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A spatial averaging filter having all the coefficients equal is termed _________

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A spatial averaging filter having all the coefficients equal is termed _________

(a) A box filter

(b) A weighted average filter

(c) A standard average filter

(d) A median filter

I have been asked this question in final exam.

This interesting question is from Smoothing Linear Spatial Filters topic in division Intensity Transformations and Spatial Filtering of Digital Image Processing

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Correct answer is (a) A box filter

Easiest explanation: An averaging filter is termed as box filter if all the coefficients of spatial averaging filter are equal.

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