Customer support

Now that you are the proud owner of a Packt book, we have a number of things to help you to get the most from your purchase.

Downloading the example code

You can download the example code files for this book from your account at h t t p ://w w w . p a c k t p u b . c o m. If you purchased this book elsewhere, you can visit h t t p ://w w w . p a c k t p u b . c o m /s u p p o r t and register to have the files e-mailed directly to you.

You can download the code files by following these steps:

1. Log in or register to our website using your e-mail address and password.
2. Hover the mouse pointer on the SUPPORT tab at the top.
3. Click on Code Downloads & Errata.
4. Enter the name of the book in the Search box.
5. Select the book for which you're looking to download the code files.
6. Choose from the drop-down menu where you purchased this book from.
7. Click on Code Download.

Once the file is downloaded, please make sure that you unzip or extract the folder using the latest version of:

• WinRAR / 7-Zip for Windows
• Zipeg / iZip / UnRarX for Mac
• 7-Zip / PeaZip for Linux

The code bundle for the book is also hosted on GitHub at h t t p s ://g i t h u b . c o m /P a c k t P u b l i s h i n g /M a s t e r i n g - O p e n C V 3- S e c o n d - E d i t i o n. We also have other code bundles from our rich catalog of books and videos available at h t t p s ://g i t h u b . c o m /P a c k t P u b l i s h i n g /. Check them out!

Downloading the color images of this book

We also provide you with a PDF file that has color images of the screenshots/diagrams used in this book. The color images will help you better understand the changes in the output. You can download this file from h t t p s ://w w w . p a c k t p u b . c o m /s i t e s /d e f a u l t /f i l e s /d o w n l o a d s /M a s t e r i n g O p e n C V 3S e c o n d E d i t i o n _ C o l o r I m a g e s . p d f.

Errata

Although we have taken every care to ensure the accuracy of our content, mistakes do happen. If you find a mistake in one of our books-maybe a mistake in the text or the code-we would be grateful if you could report this to us. By doing so, you can save other readers from frustration and help us improve subsequent versions of this book. If you find any errata, please report them by visiting h t t p ://w w w . p a c k t p u b . c o m /s u b m i t - e r r a t a , selecting your book, clicking on the Errata Submission Form link, and entering the details of your errata. Once your errata are verified, your submission will be accepted and the errata will be uploaded to our website or added to any list of existing errata under the Errata section of that title.

To view the previously submitted errata, go to h t t p s ://w w w . p a c k t p u b . c o m /b o o k s /c o n t e n t /s u p p o r t and enter the name of the book in the search field. The required information will appear under the Errata section.

Piracy

Piracy of copyrighted material on the Internet is an ongoing problem across all media. At Packt, we take the protection of our copyright and licenses very seriously. If you come across any illegal copies of our works in any form on the Internet, please provide us with the location address or website name immediately so that we can pursue a remedy.

Please contact us at [email protected] with a link to the suspected pirated material.

We appreciate your help in protecting our authors and our ability to bring you valuable content.

Questions

If you have a problem with any aspect of this book, you can contact us at [email protected], and we will do our best to address the problem.