How is the expression represented for the normalized histogram?
A. p(r_k )=n_k
B. p(r_k )=n_k/n
C. p(r_k)=nn_k
D. p(r_k )=n/n_k
Answer:B
How is the expression represented for the normalized histogram?
A. p(r_k )=n_k B. p(r_k )=n_k/n C. p(r_k)=nn_k D. p(r_k )=n/n_k
Explanation: It is common practice to normalize a histogram by dividing each of its values by the total number of pixels in the image, denoted by n. Thus, a normalized histogram is given by p(rk )=nk/n, for k=0,1,2…..L-1. Loosely speaking, p(rk ) gives an estimate of the probability of occurrence of gray-level rk. Note that the sum of all components of a normalized histogram is equal to 1.