CLEAN : Protesters rally for employment in French city of Lyon

What is the primary focus of the introduction section on images?

• Basic definitions and types of images

• The history of photography

• Advanced image processing techniques

• The role of images in social media

How are images typically represented in digital form?

• Through sound waves

• By chemical reactions

• As a series of text files

• Using pixels and resolution

What is a pixel in the context of digital images?

• A software for editing images

• A type of camera lens

• The smallest unit of a digital image

• A color filter used in photography

Which of the following is a key application of images?

• Historical analysis

• Cooking recipes

• Mathematical equations

• Medical imaging

Why are images important in various fields?

• They are easy to store

• They provide visual information

• They are universally understood

• They are inexpensive to produce