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Instant OpenCV Starter.pdf
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Copyright O 2013 Packt Publishing
All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or
transmitted in any form or by any means, without the prior written permission of the publisher,
except in the case of brief quotations embedded in critical articles or reviews
Every effort has been made in the preparation of this book to ensure the accuracy of the
information presented. However, the information contained in this book is sold without
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and distributors will be held liable for any damages caused or alleged to be caused directly or
indirectly by this book
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and products mentioned in this book by the appropriate use of capitals. However, Packt
Publishing cannot guarantee the accuracy of this information
First published: May 2013
Production Reference:1170513
Published by Packt Publishing Ltd
Plac
35 Livery Street
Birmingham B3 2PB, UK
SBN978-1782168812
www.packtpub.com
Credits
Authors
Project Coordinator
Jayneil dala
Esha thakker
Sohil pate
Proofreader
Reviewers
Paul hindle
David millan escriva
Sagar Patel
Graphics
Abhinash sahu
Acquisition Editor
Usha lyer
Production Coordinator
Prachali bhiwand kar
Commissioning Editor
Sharvari Tawde
Cover work
Prachali bhiwand kar
Technical editor
Vrinda nitesh bhosale
Cover Image
Conidon miranda
About the authors
Jayneil dalal is an Embedded Linux Engineer/Technical Writer who loves to explore
different open source technologies, and he has been a key member of the Panda board. org
and Beagleboard. org projects at Texas Instruments. He has been selected to give a talk at
Linuxfest Northwest 2013 and OSCON 2013. He has previously presented at Linuxcon North
America 2012, Drodicon 2012 in Berlin Southeast Linuxfest 2012, Indiana Linuxfest 2012,
Northwest LinuXfest 2012, Scipy 2011, and Opensource bridge 2012. Jayneil can be reached
atjayncil.dalalgmail.com
I would like to thank my family members, Harish, Atul, Deena, and Nayshil
for encouraging me to write this book finally i would like to acknowledge
my co-author Sohil Patel's immense hardwork and dedication that made thi
book a reality
Sohil Patel is a Computer Vision Engineer and FoSS advocate who loves to explore different
open source technologies. His areas of interest include Python, Computer Vision, Augmented
Reality, LinuX, HCl, Pandaboard, and other open source hardware platforms. He is currently
orking at azo which is a startup based in India
I would like to thank my family members, Sanjay, Hema, and Hetvi, for
encouraging me to write this book
About the reviewers
David Millan Escriva was 8 years old when he wrote his first program on an 8086 PC with
Basic language, which enabled the 2D plotting of basic equations. this was only the beginning of
his computer development relationship, and he has since created many applications and games
In 2005, he finished his studies in IT through the Universitat Politecnica de valencia with honors
in human-computer interaction supported by computer vision with Open Cv(vo. 96). He wrote a
final project based on this subject and published it on Hci Spanish congress
He also participated in blender source code an open source 3 D-software project and worked
in his first commercial movie, Plumiferos-Aventuras Voladoras, as a Computer Graphics
Software developer
David now has more than 10 years of experience in IT, with more than 7 years experience in
computer vision, computer graphics, and pattern recognition working on different projects
and startups and applying his knowledge of computer vision, optical character recognition,
and augmented reality
HeistheauthorofDamilesblog(http://blog.damiles.com),wherehepublishesresearch
articles and tutorials about OpenCV, computer vision in general, and Optical Character Recognition
algorithms. He is also the Co-author of Mastering Open Cy with Practical Computer Vision Projects
He has also reviewed the following Packt books
y GnuPlot Cookbook, Lee phillips
t Open CV Computer Vision with Python, Joseph Howse
I thank my wife, Izaskun, and my daughter, Eider, for their patience and
support. Love you
Sagar Patel is pursuing a Bachelors degree in Electronics and Communication Engineering from
Nirma University, India. His main areas of interest include Digital Sound Processing, Augmented
Reality, Artificial Intelligence, and Machine Vision. His research is on the bionics based project Th
Third Eye, which has been approved by ldea Lab As far as physics is concerned, he loves to explore
the idea of the Theory of Relativity. He believes that, "Thousands of miles of long journey begin
with a single step, and that step begins with a tiny thought'
I am thankful to the authors, jayneil Dalal and Sohil Patel, for giving me the
opportunity to review this book I would like to specially thank my parents
and my grandfather for giving me the motivation. I am also thankful to Packt
Publishing for providing the direction to the reviewing process
Wwww.paCktpub.com
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Table of contents
nstant OpenCVStarter
So, what is Open CV?
Installation
OpenCV installation procedure for linux
Approach 1
Approach 2
OpenCv uninstallation procedure for Linux
11
OpenCV installation procedure for windows
Step 1-installing the dependencies
12
Step 2-installing openCv
Step3-configuring OpenCV with Code: Blocks
12
And that's it
1
Quick start-OpenCV fundamentals
16
Task 1-image basics
e
Task 2- reading and displaying an image
Code explanati
Output
Task 3-resizing and saving an image
Code explanation
Output
Top s features you need to know about
24
Pixel manipulation
24
Task
Algorith
Output
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