Search icon
Arrow left icon
All Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Newsletters
Free Learning
Arrow right icon
OpenCV 3 Blueprints

You're reading from  OpenCV 3 Blueprints

Product type Book
Published in Nov 2015
Publisher
ISBN-13 9781784399757
Pages 382 pages
Edition 1st Edition
Languages

Table of Contents (14) Chapters

OpenCV 3 Blueprints
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Getting the Most out of Your Camera System Photographing Nature and Wildlife with an Automated Camera Recognizing Facial Expressions with Machine Learning Panoramic Image Stitching Application Using Android Studio and NDK Generic Object Detection for Industrial Applications Efficient Person Identification Using Biometric Properties Gyroscopic Video Stabilization Index

Processing images to show subtle colors and motion


By now, you have probably captured some exposure-bracketed photos and time-lapse photos. Upload them onto your computer using a photo management application, a file browser, or the following gPhoto2 command:

$ gphoto2 --get-all-files

The latter command will upload the files to the current working directory.

We will merge exposure-bracketed photos to create HDR images, which will improve color rendition in shadows and highlights. Similarly, we will merge time-lapse photos to create time-lapse videos, which will show gradual motion on an accelerated scale. We will start by processing some of the sample photos from the book's GitHub repository at https://github.com/OpenCVBlueprints/OpenCVBlueprints/tree/master/chapter_2/CameraTrap/media, and then you will be able to adapt the code to use your photos instead.

Creating HDR images

OpenCV 3 has a new module called "photo". Two of its classes, MergeDebevec and MergeMertens, create an HDR image by merging...

lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at $15.99/month. Cancel anytime}