All digital data is made up of ‘bits’, and that includes digital images. In computing, ‘bits’ are either on or off, so there are only two possible values. But when you use them together the combinations are multiplied so you can record a much wider range of values. The number of bits used is the […]
These are photos which use 8 bits of data for each of the red, green and blue colour channels. This is enough to give over 16 million colours – more than enough for photographic images. The JPEG photos taken by digital cameras are 8-bit images.