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Question

If in an image there exist similar change in gray-level values in the image, which of the following shows a stronger response using second order derivative operator for sharpening?

a.

A line

b.

A step

c.

A point

d.

None of the mentioned

Answer: (c).A point

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Q. If in an image there exist similar change in gray-level values in the image, which of the following shows a stronger response using second order derivative operator for sharpening?

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