Representing colours

Which one of these does NOT describe a pixel?

• Picture element

• coloured dot in a printed image

• tiny coloured point on a monitor

• The smallest editable unit of a bitmap image

Which of these correctly describes the resolution of an image?

• How many colours the image contains

• The number of pixels in the image

• Whether the image is a photograph or a cartoon

• How wide the image is

If an image contains only 16 colours how many bits are used to store the data about each pixel?

• 2

• 16

• 4

• 8

How many colours can be stored using 2 bits?

• 16

• 2

• 8

• 4

What improves the image quality of an image?

• Make the picture bigger

• Make the Picture Smaller

• More pixels

• less pixels

Colour depth defines ...

• the number of pixels in an image.

• the number of possible colours in an image.

• the number of bits in an image.

Colour depth is ...

• the number of pixels in an image.

• the number of bits per pixel

• the number of bits in an image.

Each pixel is a .................... . Each colour represented by a number of ...............

• colour, bits

• file, binary

• character, pixels