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OpenCV 4 for Secret Agents

You're reading from   OpenCV 4 for Secret Agents Use OpenCV 4 in secret projects to classify cats, reveal the unseen, and react to rogue drivers

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Product type Paperback
Published in Apr 2019
Publisher Packt
ISBN-13 9781789345360
Length 336 pages
Edition 2nd Edition
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Authors (2):
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Joseph Howse Joseph Howse
Author Profile Icon Joseph Howse
Joseph Howse
Arun Ponnusamy Arun Ponnusamy
Author Profile Icon Arun Ponnusamy
Arun Ponnusamy
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Toc

Table of Contents (16) Chapters Close

Preface 1. Section 1: The Briefing FREE CHAPTER
2. Preparing for the Mission 3. Searching for Luxury Accommodations Worldwide 4. Section 2: The Chase
5. Training a Smart Alarm to Recognize the Villain and His Cat 6. Controlling a Phone App with Your Suave Gestures 7. Equipping Your Car with a Rearview Camera and Hazard Detection 8. Creating a Physics Simulation Based on a Pen and Paper Sketch 9. Section 3: The Big Reveal
10. Seeing a Heartbeat with a Motion-Amplifying Camera 11. Stopping Time and Seeing like a Bee 12. Making WxUtils.py Compatible with Raspberry Pi
13. Learning More about Feature Detection in OpenCV
14. Running with Snakes (or, First Steps with Python)
15. Other Books You May Enjoy

Playing audio clips as questions and answers

The logic of the question-and-answer sequence is another component that has no computer vision functionality. We encapsulate it in a class called YesNoAudioTree, which is responsible for playing the next audio clip whenever the app's computer vision component notifies it of a yes or no answer.

Remember that the audio clips are part of the book's GitHub repository, and they belong in the project's app/src/main/res/raw folder. However, note that the audio clips in the repository are by no means an exhaustive set of questions and guesses about characters in the Bond franchise. Feel free to add your own clips and your own logic to play them.

Create a file, app/src/main/java/com/nummist/goldgesture/YesNoAudioTree.java. Our YesNoAudioTree class needs member variables to store a media player and a related context, an ID for...

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