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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

Summary

In this chapter, we created a new application named Facetious by abridging the Gazer application, which was built in the preceding chapter. In the abridging process, the features of video saving and motion detecting were removed and a new feature of photo taking was added. As a result, we got a clean application that allows us to focus on face recognition. Then, in the application, we developed the feature of face detecting using a pretrained cascade classifier and the feature of facial landmarks detecting using another pretrained machine learning model. At last, which is the funny part, we applied many ornaments on the detected faces with the help of the detected landmarks.

In the next chapter, we will talk about Optical Character Recognition (OCR) technology and use that technology to extract text from images or scanned documents.

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