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Mastering OpenCV 4 with Python

You're reading from  Mastering OpenCV 4 with Python

Product type Book
Published in Mar 2019
Publisher Packt
ISBN-13 9781789344912
Pages 532 pages
Edition 1st Edition
Languages
Author (1):
Alberto Fernández Villán Alberto Fernández Villán
Profile icon Alberto Fernández Villán

Table of Contents (20) Chapters

Preface 1. Section 1: Introduction to OpenCV 4 and Python
2. Setting Up OpenCV 3. Image Basics in OpenCV 4. Handling Files and Images 5. Constructing Basic Shapes in OpenCV 6. Section 2: Image Processing in OpenCV
7. Image Processing Techniques 8. Constructing and Building Histograms 9. Thresholding Techniques 10. Contour Detection, Filtering, and Drawing 11. Augmented Reality 12. Section 3: Machine Learning and Deep Learning in OpenCV
13. Machine Learning with OpenCV 14. Face Detection, Tracking, and Recognition 15. Introduction to Deep Learning 16. Section 4: Mobile and Web Computer Vision
17. Mobile and Web Computer Vision with Python and OpenCV 18. Assessments 19. Other Books You May Enjoy

Questions

  1. What are the main image-processing steps?
  2. What are the three processing levels?
  3. What is the difference between a grayscale image and a black and white image?
  4. What is a pixel?
  5. What is image resolution?
  6. What OpenCV functions do you use to perform the following actions?
    • Load (read) an image
    • Show an image
    • Wait for a keystroke
    • Split the channels
    • Merge the channels
  7. What command do you use to run the Jupyter Notebook?
  8. What color will you get with the following triplets?
    • B = 0, G = 255, R = 255
    • B = 255, G = 255, R = 0
    • B = 255, G = 0, R = 255
    • B = 255, G = 255, R = 255
  9. Suppose that you have loaded an image in img. How do you check whether img is color or grayscale?

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