Please Help Highdefinition television HDTV generates images

Please Help

High-definition television (HDTV) generates images with 1125 horizontal TV lines interlaced (where every other line is painted on the tube face in each of two fields, each field being 1/60^th of a second in duration). The width-to-height aspect ratio of the images is 16:9. The fact that the number of horizontal lines is fixed determines the vertical resolution of the images. A company has designed an image capture system that generates digital images from HDTV images. The resolution of each TV line in their system is in proportion to vertical resolution, with the proportion being the width-to-height ratio of the images. Each pixel in the color image has 24 bits of intensity resolution, 8 bits each for a red, a green, and a blue image. These three \"primary\" images from a color image. How many bits would it take to store a 2-hour HDTV movie?

Solution

width to height aspect ratio of image = 16:9 (given)

the number of pixels per line = L which can be obtained by solving 16/9=L/1125 => L= 2000

As per the given data in the question the total bits it take =

(2000 * 1125/2)pixels/frame * 60 frames/sec * 24 bits/pixel * 2 hours * 3600 sec/hour = 1.666*10¹³ bits .