Book Image

OpenCV 4 for Secret Agents - Second Edition

By : Joseph Howse
Book Image

OpenCV 4 for Secret Agents - Second Edition

By: Joseph Howse

Overview of this book

OpenCV 4 is a collection of image processing functions and computer vision algorithms. It is open source, supports many programming languages and platforms, and is fast enough for many real-time applications. With this handy library, you’ll be able to build a variety of impressive gadgets. OpenCV 4 for Secret Agents features a broad selection of projects based on computer vision, machine learning, and several application frameworks. To enable you to build apps for diverse desktop systems and Raspberry Pi, the book supports multiple Python versions, from 2.7 to 3.7. For Android app development, the book also supports Java in Android Studio, and C# in the Unity game engine. Taking inspiration from the world of James Bond, this book will add a touch of adventure and computer vision to your daily routine. You’ll be able to protect your home and car with intelligent camera systems that analyze obstacles, people, and even cats. In addition to this, you’ll also learn how to train a search engine to praise or criticize the images that it finds, and build a mobile app that speaks to you and responds to your body language. By the end of this book, you will be equipped with the knowledge you need to advance your skills as an app developer and a computer vision specialist.
Table of Contents (16 chapters)
Free Chapter
1
Section 1: The Briefing
4
Section 2: The Chase
9
Section 3: The Big Reveal
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)

Summary

This chapter has broadened our view of the things cameras can see. We have considered video capture at high frame rates and at wavelengths of light that are invisible to the human eye. As programmers, we have learned to wrap a third-party camera API in a way that allows us to use industrial cameras and OpenCV-compatible webcams interchangeably, thanks to Python's duck typing. As experimenters, we have extended our study of Eulerian video magnification into higher frequencies of motion, as well as more surprising patterns of pulsing light beyond the visible spectrum.

Let's reflect on all our progress. From finding the head of SPECTRE to exploring the electromagnetic spectrum, our journey as secret agents has taken us far. At this proud moment, however, our adventure must reach its conclusion. We will meet again. Look out for future books, webcasts, and presentations...