OCR GCSE Computer Science - 2.6.7 - Images Data Representation

How many colours are available for an image where the colour depth is 1?

• 2

• 1

• 3

• 4

How many colours are available for an image where the colour depth is 2?

• 2

• 4

• 3

• 8

How many colours are available for an image where the colour depth is 3?

• 2

• 4

• 3

• 8

How many colours are available for an image where the colour depth is 4?

• 16

• 32

• 4

• 8

What information is stored as metadata?

• width, height, colour depth, colour index

• height, colour depth, colour index, bit ratios

• hex to binary lookup, width, colour table, bit management

• pixel count, colour depth, colour index, bit ratios

How many bytes are required per pixel in an RGB image?

• 3

• 4

• 5

• 8