Which of the following is the disadvantage of using smoothing filter?(a) Blur edges(b) Blur inner pixels(c) Remove sharp transitions(d) Sharp edgesThe question was posed to me in an international level competition.My query is from Smoothing Spatial Filters topic in portion Intensity Transformations and Spatial Filtering of Digital Image Processing

Which of the following is the disadvantage of using smoothing filter?(

1.	Which of the following is the disadvantage of using smoothing filter?(a) Blur edges(b) Blur inner pixels(c) Remove sharp transitions(d) Sharp edgesThe question was posed to me in an international level competition.My query is from Smoothing Spatial Filters topic in portion Intensity Transformations and Spatial Filtering of Digital Image Processing
Answer» The correct option is (a) Blur edges Explanation: Edges, which almost always are DESIRABLE FEATURES of an image, ALSO are characterized by sharp transitions in gray level. So, AVERAGING filters have an UNDESIRABLE side effect that they blur these edges.

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