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Qt 5 and OpenCV 4 Computer Vision Projects

You're reading from   Qt 5 and OpenCV 4 Computer Vision Projects Get up to speed with cross-platform computer vision app development by building seven practical projects

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Product type Paperback
Published in Jun 2019
Publisher Packt
ISBN-13 9781789532586
Length 348 pages
Edition 1st Edition
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Author (1):
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Zhuo Qingliang Zhuo Qingliang
Author Profile Icon Zhuo Qingliang
Zhuo Qingliang
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Table of Contents (11) Chapters Close

Preface 1. Building an Image Viewer FREE CHAPTER 2. Editing Images Like a Pro 3. Home Security Applications 4. Fun with Faces 5. Optical Character Recognition 6. Object Detection in Real Time 7. Real-Time Car Detection and Distance Measurement 8. Using OpenGL for the High-Speed Filtering of Images 9. Assessments 10. Other Books You May Enjoy

Home Security Applications

In Chapter 2, Editing Images Like a Pro, we learned about the plugin mechanism of the Qt library and many image filters and transformations from the OpenCV library by building our own image editor application. In this chapter, we will move on from working with images to working with videos. We will build a new application with which we can do many things with the webcam of a PC, such as play video that's been captured from it in real time, record portions of video from its video feed, calculate its frames per second (FPS), detect motion by doing motion analysis on its video feed in real time, and more.

The following topics will be covered in this chapter:

  • Designing and creating the user interface (UI)
  • Handling cameras and videos
  • Recording videos
  • Calculating the FPS in real time
  • Motion analysis and movement detection
  • Sending notifications to a mobile...
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