Question

What is the name of process used to correct the power-law response phenomena?

(a) Beta correction

(b) Alpha correction

(c) Gamma correction

(d) Pie correction

The question was asked in final exam.

I would like to ask this question from Basic Intensity Transformation Functions topic in portion Intensity Transformations and Spatial Filtering of Digital Image Processing

Answer 1

Right option is (c) Gamma correction

For explanation: A variety of devices used for image capture, printing, and display respond according to a power law. By convention, the exponent in the power-law equation is referred to as gamma .The process used to correct these power-law response phenomena is called gamma correction.