Figure Q1 shows a 6level, 7x6 image.

a. Apply histogram equalisation to the image of Figure Q1. How does the modified image look like? How many pixels of the original image have their intensity values changed?

b. Apply direct histogram specification to the image of Figure Q1, using the desired probability density function (pdf) of Table Q1. What does the transformed image look like?

Table Q1

Level	0	1	2	3	4	5
Pdf	0	0.524	0	0.33	0	0.143

0 1 0 1 2 3 1 2 3 2 1 0 1 3 2 4 5 5 4 4 5 3 2 0 1 Figure Q1 0 3 2 3 2 3 0 0 1 0