Homework 8 - Data Representation - Images

Which of the following describes how a black and white image is represented in binary?

• Image is made up of a set of pixels, with either a 1 or 0.

• Image is made up of shapes

• Image is made up of pixels, with either a B or W

How many bits per pixel would be required for an image with a palette of 256 colours?

• 16

• 8

• 24

• 4

Which of the following is a factor that affects the file size of a bitmap image?

• Amount of pixels

• Amount of bits per pixel

What would be the file size of an image with 256 colours and 50 x 50 pixels?

• 256 bytes

• 8 bytes

• 2500 bytes

What would be the file size of an image with 16 colours and 100 x 100 pixel dimension?

• 16 bytes

• 2000 bytes

• 5000 bytes

Which of the following is an example of metadata?

• Dimensions

• No. of pixels

• Source