Book Image

Computer Vision with OpenCV 3 and Qt5

By : Amin Ahmadi Tazehkandi
4 (1)
Book Image

Computer Vision with OpenCV 3 and Qt5

4 (1)
By: Amin Ahmadi Tazehkandi

Overview of this book

Developers have been using OpenCV library to develop computer vision applications for a long time. However, they now need a more effective tool to get the job done and in a much better and modern way. Qt is one of the major frameworks available for this task at the moment. This book will teach you to develop applications with the combination of OpenCV 3 and Qt5, and how to create cross-platform computer vision applications. We’ll begin by introducing Qt, its IDE, and its SDK. Next you’ll learn how to use the OpenCV API to integrate both tools, and see how to configure Qt to use OpenCV. You’ll go on to build a full-fledged computer vision application throughout the book. Later, you’ll create a stunning UI application using the Qt widgets technology, where you’ll display the images after they are processed in an efficient way. At the end of the book, you’ll learn how to convert OpenCV Mat to Qt QImage. You’ll also see how to efficiently process images to filter them, transform them, detect or track objects as well as analyze video. You’ll become better at developing OpenCV applications.
Table of Contents (19 chapters)
Title Page
Dedication
Packt Upsell
Foreword
Contributors
Preface

Summary


In this chapter, we learned about the Qt Quick Application development and the QML language. We started with the bare syntax of this highly readable and easy-to-use language, and then moved our way to developing applications that contain components that can interact with each other in order to achieve a common goal. We learned how to fill the gap between the QML and C++ codes and then built a visual and a non-visual class to process and display images processed using OpenCV. We also went through a brief introduction of the tools required in order to build and run the same applications on Android and iOS platforms. The final chapter of this book was meant to help you get up on your feet by starting to develop quick and beautiful applications using the new Qt Quick Controls 2 module, and also combining the power of C++ codes and third-party frameworks such as OpenCV to achieve the maximum power and flexibility in developing mobile and desktop applications.

Building cross-platform and...