Similarly we can control the intensity of colours
We contain more bit planes for all colour say three bit planes for R, 3 for G and 3 for B here all bit plane of size mxn, hence there exist a digit number and through respective 1s and 0s we can control colour intensity also. Now, the amount of information required is 29 or amount of information needed is 23, 23 and 23 for each R, G and B. Hence, we can produces red light and green light or combination of both light red and dark green, medium blue and many more.