Question

In which type of slicing, highlighting a specific range of gray levels in an image often is desired?

(a) Gray-level slicing

(b) Bit-plane slicing

(c) Contrast stretching

(d) Byte-level slicing

This question was addressed to me at a job interview.

This is a very interesting question from Basic Intensity Transformation Functions in division Intensity Transformations and Spatial Filtering of Digital Image Processing

Answer 1

Right choice is (a) Gray-level slicing

For explanation I would say: Highlighting a specific range of gray levels in an image often is desired in gray-level slicing. Applications include enhancing features such as masses of water in satellite imagery and enhancing flaws in X-ray images.