Data2 - Image representation

What is a pixel?

• A tiny square of colour

• A tiny piece of music

• A tiny circle of colour

• A tiny triangle of colour

What is pixel an abbreviation for?

• Piece of Colour

• Picture Element

• Picture Colour

• Precise Element

Each pixel has its own number, what does this tell the computer?

• Where the pixel is located

• Which user can see the pixel

• What colour the pixel should be

• How much storage is in the pixel

An image that is stored in a grid of pixels is called a bitmap image.

• True

• False

Which of these describes a binary bit?

• 01010101

• 12563

• 1 or 0

• 01

How many bits make up a nibble?

• 8

• 4

• 16

• 6

How many bits make up a byte?

• 16

• 4

• 8

• 2

What is the process of turning an image into a set of pixels?

• Computerisation

• Breakdown

• Pixeling

• Digitalisation

How do we represent more colours other than black and white in our images?

• We use more bits per pixel

• We stop using binary?

• We just type the colour in that we want