In digital image processing, converting an image to grayscale is a common process prior to further process of extracting the image features.

(b) Given a colour image of 200 by 300 pixels dimension, and with primary colour depth of 8 bits per colour.

i. Calculate the total bits per pixel (bpp) and the size of this image in bytes.

(4 marks)

ii. Assume that this image is converted to grayscale with 8 bpp, calculate the size of this grayscale image in bytes.

(2 marks)