Question

Response of the gradient to noise and fine detail is _____________ the Laplacian’s.

(a) equal to

(b) lower than

(c) greater than

(d) has no relation with

This question was addressed to me by my college director while I was bunking the class.

The doubt is from Combining Spatial Enhancements Methods topic in division Intensity Transformations and Spatial Filtering of Digital Image Processing

Answer 1

Right choice is (b) lower than

The best I can explain: Response of the gradient to noise and fine detail is lower than the Laplacian’s and can further be lowered by smoothing.