中等ICT-DATA-005
An image uses a colour depth of 8 bits per pixel. How many different colours can each pixel represent?
A. 8
B. 16
C. 64
D. 256✓ 答案
解說
The number of colours is 2 to the power of the colour depth. 2^8 = 256, not 8.
The number of colours is 2 to the power of the colour depth. 2^8 = 256, not 8.