Perform Histogram Equalization on the Gray level distribution shown in the table. Draw the histograms of the original and equalized images. Comment on the contrast of the image before because grain equalization and after histogram equalization.

$$ \begin{array}{|c|c|c|c|c|c|c|c|c|} \hline \text { Gray Levels } & 0 & 1 & 2 & 3 & 4 & 5 & 6 & 7 \\ \hline \text { No. of Pixels } & 0 & 100 & 400 & 50 & 200 & 50 & 200 & 0 \\ \hline \end{array} $$

Solution:

$ n=\sum n_x=1000\\ $

$ \begin{array}{|c|c|c|c|c|c|c|c|c|} \hline \text { Gray lenel } & 0 & 1 & 2 & 3 & 4 & 5 & 6 & 7 \\ \hline n_k & 0 & 100 & 400 & 50 & 200 & 50 & 200 & 0 \\ \hline …