Question

Which of the following image component varies abruptly particularly at the junction of dissimilar objects?

(a) Illumination component

(b) Reflectance component

(c) All of the mentioned

(d) None of the mentioned

The question was posed to me in an international level competition.

My question comes from Homomorphic filtering in chapter Intensity Transformations and Spatial Filtering of Digital Image Processing

Answer 1

Correct answer is (b) Reflectance component

To explain I would say: The reflectance component of an image varies abruptly particularly at the junction of dissimilar objects.