Digital Imaging Quiz

What does ppi stand for in digital imaging?

• Pixels per inch

• Pictures per inch

• Processing per inch

• Pixels per image

Which of the following affects an image's file size?

• Resolution

• Colour depth

• Number of pixels

• All of the above

What is the colour depth of a black-and-white image stored with 1 bit per pixel?

• 1

• 2

• 8

• 16

A digital image with a resolution of 10 × 10 pixels and a colour depth of 1 bit per pixel requires how many bits for storage?

• 10

• 20

• 100

• 200

Increasing the colour depth of an image allows:

• More colours to be represented

• A smaller file size

• The image to lose quality

• The image to become grayscale

What is a bitmap graphic?

• An image made up of pixels

• An image made using mathematical formulas

• A compressed video format

• A type of analog film

What does each pixel in a bitmap image represent?

• A single colour

• A full picture

• A sound wave

• A mathematical formula

Which of the following is an example of an analogue image?

• Printed photograph

• Digital selfie

• GIF animation

• A video recording

What is the binary representation of black in a 1-bit colour depth image?

• 0

• 1

• 10

• 11

A 10 × 10 pixel image with a colour depth of 2 bits per pixel requires how many bits for storage?

• 100

• 200

• 400

• 1000