OpenCV for Secret Agents

By Joseph Howse

About This Book

• Build OpenCV apps for the desktop, the Raspberry Pi, Android, and the Unity game engine
• Learn real-time techniques that can be used to classify images, detecting and recognizing any person or animal, and studying motion and distance with superhuman precision
• Design hands-free interfaces that are practical in home automation, in cars, and in discrete surveillance

Who This Book Is For

This book is for programmers who want to expand their skills by building fun, smart, and useful systems with OpenCV. The projects are ideal in helping you to think creatively about the uses of computer vision, natural user interfaces, and ubiquitous computers (in your home, car, and hand).

• Language: English
• Publisher: Packt Publishing
• Release date: Jan 28, 2015
• ISBN: 9781783287383

Joseph Howse

Joseph Howse lives in a Canadian fishing village, where he chats with his cats, crafts his books, and nurtures an orchard of hardy fruit trees. He is President of Nummist Media Corporation, which exists to support his books and to provide mentoring and consulting services, with a specialty in computer vision. On average, in 2015-2022, Joseph has written 1.4 new books or new editions per year for Packt. He also writes fiction, including an upcoming novel about the lives of a group of young people in the last days of the Soviet Union.

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Chapter 1. Preparing for the Mission

Q: I've been saying for years, sir, that our special equipment is obsolete. And now, computer analysis reveals an entirely new approach: miniaturization.

On Her Majesty's Secret Service (1969)

James Bond is not a pedestrian. He cruises in a submarine car, he straps on a rocket belt, and oh, how he skis, how he skis! He always has the latest stuff and he is never afraid to put a dent in it, much to the dismay of Q, the engineer.

As software developers in the 2010s, we are witnessing an explosion in the adoption of new platforms. Under one family's roof, we might find a mix of Windows, Mac, iOS, and Android devices. Mom and Dad's workplaces provide different platforms. The kids have three game consoles or five if you count the mobile versions. The toddler has a LeapFrog learning tablet. Smart glasses are becoming more affordable.

We must not be afraid to try new platforms and consider new ways to combine them. After all, most users do.

This book embraces multi-platform development. It presents weird and wonderful applications that we can deploy in unexpected places. It uses several of the computer's senses, but especially uses computer vision to breathe new life into the humdrum, heterogeneous clutter of devices that surround us.

Before Agent 007 runs amok with the gadgets, he is obligated to listen to Q's briefing. This chapter performs Q's role. This is the setup chapter.

By the end of this chapter, you will obtain all the tools to develop OpenCV applications in C++ or Python for Windows, Mac, or Linux, and in C++ or Java for Android. You will also be the proud new user of a Raspberry Pi single-board computer (this additional hardware is optional). You will even know a bit about Unity, a game engine into which we can integrate OpenCV.

If you find yourself a bit daunted by the extent of this setup chapter, be reassured that not all of the tools are required and no single project uses all of them in combination. Although Q and I live for the big event of setting up multiple technologies at once, you could just skim this chapter and refer back to it later when the tools become useful, one by one, in our projects.

Note

Where basic OpenCV setup and reference materials are concerned, this chapter includes excerpts from my introductory books, OpenCV Computer Vision with Python and Android Application Programming with OpenCV, published by Packt Publishing. All contents are retested, updated, and expanded to cover newer OpenCV versions and additional operating systems. Also, there are all new sections on the optional hardware and game engine used in this