Digital Image Fundamentals

content
menu
navigation
tools

Exercice

Question1

What is digital image representation in the context of computer science?

Expected answer

The way digital images are stored and manipulated by computers.
The process of capturing light and color in a digital format.
Both a and b.
None of the above.

Question2

Why is encoding visual information critical in digital imaging?

Encoding visual information is critical in digital imaging because it allows for efficient storage, manipulation, and transmission of visual data, ensuring that images can be accurately represented and reproduced across different devices.

Question3

Describe one main challenge in color imagery and provide an example.

One main challenge in color imagery is color consistency across different devices. For example, the same image might appear differently on a smartphone screen compared to a computer monitor due to variations in display technology and color calibration.

Question4

What is a pixel in the context of a digital image?

Expected answer

A tiny dot that represents a single point in a digital image.
A large square in a digital image.
An element used in printing.
None of the above.

Question5

Given an image with 15 columns and 20 rows, calculate the total number of pixels.

300

Question6

What is image resolution, and how is it expressed?

Expected answer

The sharpness of an image, expressed in pixels per inch (PPI) or dots per inch (DPI).
The size of an image, expressed in inches.
The color depth of an image.
None of the above.

Correction Restart

Objectives
Content Map
prerequisites
prerequisites assessment
Introduction
Acquisition
Digital Image
- The Pixel
- Definition
- The Resolution
- Quiz: Exercice
Color
Image Coding
Final Exam
Conclusion

Homepage
Module

Exercice

Question1

Your choiceExpected answerAnswer

Question2

Question3

Question4

Your choiceExpected answerAnswer

Question5

Question6

Your choiceExpected answerAnswer

Expected answer

Expected answer

Expected answer