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For what value of A this high boost filtering becomes the standard Laplacian sharpening filter?

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For what value of A this high boost filtering becomes the standard Laplacian sharpening filter?

(a) 0

(b) 1

(c) -1

(d) ∞

The question was posed to me during an internship interview.

My question is from Use of Second Order Derivative for Enhancement in division Image Enhancement of Digital Image Processing

1 Answer

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Best answer
The correct option is (b) 1

The best explanation: for A=1 the high boost filtering is given by:

.

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