Question: (b) You have an image with 640 x 480 pixels in 24-bit RGB colour to be compressed by using the YCbCr model with 4:1:0 chrominance

(b) You have an image with 640 x 480 pixels in

(b) You have an image with 640 x 480 pixels in 24-bit RGB colour to be compressed by using the YCbCr model with 4:1:0 chrominance subsampling. Illustrate the mentioned chrominance subsampling model by using a 4x4 pixel image. [3 marks) (ii) Determine the compression ratio of the given image. [6 marks] (iii) Given that, in one of the pixels of the image, the value of [R G B] = [100 150 200], convert the pixel colour space into YCbCr. [4 marks]

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