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The objective of sharpening spatial filters is/are to ___________

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The objective of sharpening spatial filters is/are to ___________

(a) Highlight fine detail in an image

(b) Enhance detail that has been blurred because of some error

(c) Enhance detail that has been blurred because of some natural effect of some method of image acquisition

(d) All of the mentioned

The question was posed to me in an interview for job.

My doubt is from Sharpening Spatial Filters-2 in division Intensity Transformations and Spatial Filtering of Digital Image Processing

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The correct choice is (d) All of the mentioned

Easiest explanation: Highlighting the fine detail in an image or Enhancing detail that has been blurred because of some error or some natural effect of some method of image acquisition, is the principal objective of sharpening spatial filters.

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