OpenCV 3 Computer Vision with Python Cookbook

封面

Title Page

Copyright and Credits

OpenCV 3 Computer Vision with Python Cookbook

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Contributors

About the authors

About the reviewer

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Preface

Who this book is for

What this book covers

To get the most out of this book

Download the example code files

Download the color images

Conventions used

Sections

Getting ready

How to do it...

How it works...

There's more...

See also

Get in touch

Reviews

I/O and GUI

Introduction

Reading images from files

Getting ready

How to do it...

How it works...

Simple image transformations—resizing and flipping

Getting ready

How to do it...

How it works...

Saving images using lossy and lossless compression

Getting ready

How to do it...

How it works...

Showing images in an OpenCV window

Getting ready

How to do it...

How it works...

Working with UI elements such as buttons and trackbars in an OpenCV window

Getting ready

How to do it...

How it works...

Drawing 2D primitives—markers lines ellipses rectangles and text

Getting ready

How to do it...

How it works...

Handling user input from a keyboard

Getting ready

How to do it...

How it works...

Making your app interactive through handling user input from a mouse

Getting ready

How to do it...

How it works...

Capturing and showing frames from a camera

Getting ready

How to do it...

How it works...

Playing frame stream from video

Getting ready

How to do it...

How it works...

Obtaining a frame stream properties

Getting ready

How to do it...

How it works...

Writing a frame stream into video

Getting ready

How to do it...

How it works...

Jumping between frames in video files

Getting ready

How to do it...

How it works...

Matrices Colors and Filters

Introduction

Manipulating matrices-creating filling accessing elements and ROIs

Getting ready

How to do it...

How it works...

Converting between different data types and scaling values

Getting ready

How to do it...

How it works...

Non-image data persistence using NumPy

Getting ready

How to do it...

How it works...

Manipulating image channels

Getting ready

How to do it...

How it works...

Converting images from one color space to another

Getting ready