1.2.4 Representing Images

What does the word 'pixel' stand for?

• Picture element

• Pixelize

• Pixelation

• Pixelated

How many bits per pixel are used to represent a black and white image?

• 8 bits

• 4 bits

• 2 bits

• 1 bit

How many colors can be represented with 16 bits per pixel?

• 256 colors

• 65,536 colors

• 16 colors

• 4 colors

What is the color depth of an image?

• The number of pixels in the image

• The number of bits used to represent each pixel

• The size of the image in bits

• The resolution of the image in dots per inch

What is metadata in the context of representing images?

• Information about the image

• The resolution of the image

• The actual image data

• The file format of the image

What happens to the file size when we increase the color depth and resolution of an image?

• It becomes unpredictable

• It decreases

• It stays the same

• It increases

Why do we often have to reduce color depth or resolution in images?

• To decrease the quality of the image

• To increase the file size

• To save storage space or reduce bandwidth

• To make the image look pixelated

What does the resolution of an image represent?

• The size of the image in bits

• The quality of the image

• The number of pixels in the image

• The number of bits per pixel

What will happen to the quality of an image if we decrease the color depth and resolution?

• It will become unpredictable

• It will decrease

• It will stay the same

• It will increase

How did you find this work on images?

• Great :)

• All good

• Not too bad

• Not Great :(