3.2.2: understand how bitmap images are represented in binary (pixels, resolution, colour depth)
Keyword | Definition |
---|---|
bitmap | a way of representing images by storing the colour of each pixel separately |
colour depth | the number of bits used to store the colour of each pixel (e.g. 8 bit means 2^8 which is 256 different colours) |
pixel | a coloured dot used to make up a tiny part of an image |
resolution | the number of pixels used to store an image (width x height) |