Answer it
P1 a1 bitmap size
3 marksYou mark it yourself against the marking points
A wildlife camera in a nature reserve saves uncompressed bitmap photos that are 1024 pixels wide and 768 pixels high, with a colour depth of 24 bits.
(a) Calculate the size of one photo in bytes. Ignore any file header. [2]
(b) To save space, the colour depth is reduced to 16 bits. State how many different colours each pixel can then show. [1]
[3]