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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 2. Editing Images Like a Pro FREE CHAPTER 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

Creating Literacy

As we said, we will create a new application to extract text from images or scanned documents, hence, its name of Literacy. The first thing is to clarify what the application aims to do. The main feature is extracting text from images, but, for the convenience of users, we should provide more than one way to specify the image:

  • The image may be from the local hard disk.
  • The image may be captured from the screen.

With this requirement clarified, let's now design the UI.

Designing the UI

The following wireframe is drawn as the design of the UI of our application:

As you can see, we split the main area vertically into two parts—the left-hand part is used to display the opened, or captured, image...

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