Which of the following illustrates three main types of image enhancing functions?
A. Linear, logarithmic and power law
B. Linear, logarithmic and inverse law
C. Linear, exponential and inverse law
D. Power law, logarithmic and inverse law
Answer:A
Which of the following illustrates three main types of image enhancing functions?
A. Linear, logarithmic and power law B. Linear, logarithmic and inverse law C. Linear, exponential and inverse law D. Power law, logarithmic and inverse law
Explanation: The three fundamental types of functions used often for picture improvement are shown in an introduction to gray-level transformations: linear (negative and identity transformations), logarithmic (log and inverse-log transformations), and power-law transformations (nth power and nth root transformations). The identity function is the simplest situation, in which the output and input intensities are the same. It’s just included in the graph for completeness’ sake.