Android Application Programming with OpenCV by Joseph Howse

, , Comments Off on Android Application Programming with OpenCV by Joseph Howse

By Joseph Howse

Take a cellphone out of your pocket, and inside a couple of seconds, you could snap a photograph, control it, and proportion it with the area. you will have simply completed mass creation of picture info. With a working laptop or computer imaginative and prescient library similar to OpenCV, you could study and rework copious quantities of photo info in genuine time on a cellular machine. The upshot to this can be that you just, as builders, delivers cellular clients with many new different types of photographs, regularly highlighting convinced visible gains which are of creative or functional curiosity. Android is a handy platform for such experiments since it makes use of a high-level language (Java), it presents standardized interfaces for sharing photo info among purposes, and it truly is quite often open resource, so every person can learn its implementation.

Show description

Read Online or Download Android Application Programming with OpenCV PDF

Best programming books

Learning jQuery (4th Edition)

Greater interplay, layout, and internet improvement with basic JavaScript strategies

• An creation to jQuery that calls for minimum programming adventure
• specific suggestions to precise client-side difficulties
• Revised and up-to-date model of this renowned jQuery e-book

In aspect

To construct attention-grabbing, interactive websites, builders are turning to JavaScript libraries equivalent to jQuery to automate universal initiatives and simplify advanced ones. simply because many net builders have extra adventure with HTML and CSS than with JavaScript, the library's layout lends itself to a short commence for designers with little programming event. skilled programmers can be aided via its conceptual consistency.

LearningjQuery - Fourth version is revised and up-to-date model of jQuery. you'll examine the fundamentals of jQuery for including interactions and animations in your pages. whether earlier makes an attempt at writing JavaScript have left you baffled, this e-book will advisor you previous the pitfalls linked to AJAX, occasions, results, and complicated JavaScript language features.

Starting with an creation to jQuery, you are going to first be proven tips on how to write a functioning jQuery application in exactly 3 strains of code. find out how to upload influence for your activities via a suite of easy visible results and to create, replica, reassemble, and enhance content material utilizing jQuery's DOM amendment tools. The booklet will take you thru many exact, real-world examples, or even equip you to increase the jQuery library itself along with your personal plug-ins.

What you are going to study from this publication
• Create interactive parts on your net designs
• how to create the easiest person interface in your net functions
• Use selectors in a number of how one can get whatever you will have from a web page
• Make issues take place in your webpages with occasions
• upload aptitude for your activities with quite a few animation results
• detect the hot good points on hand in jQuery during this 3rd replace of this renowned jQuery e-book


We will step via all of the middle thoughts of the jQuery library, construction an total photo of its features. after you have completely lined the fundamentals, the publication returns to every thought to hide extra complex examples and techniques.

Who this publication is written for

This booklet is for internet designers who are looking to create interactive parts for his or her designs, and for builders who are looking to create the easiest consumer interface for his or her internet purposes. easy JavaScript programming and information of HTML and CSS is needed. No wisdom of jQuery is thought, neither is event with the other JavaScript libraries.

Jonathan Chaffer

Jonathan Chaffer is a member of quick improvement crew, an online improvement enterprise situated in Grand Rapids, Michigan. His paintings there comprises overseeing and imposing tasks in a large choice of applied sciences, with an emphasis in personal home page, MySQL, and JavaScript. He additionally leads on-site education seminars at the jQuery framework for net developers.

In the open resource group, he has been very energetic within the Drupal CMS venture, which has followed jQuery as its JavaScript framework of selection. he's the writer of the content material building equipment, a well-liked module for handling based content material on Drupal websites. he's additionally chargeable for significant overhauls of Drupal's menu method and developer API reference.

He lives in Grand Rapids together with his spouse, Jennifer.

Professional C++

Crucial examining for knowledgeable builders who're decided to grasp the newest unlock of C++

Although C++ is usually the language of selection from online game programming to significant advertisement software program functions, it's also the most tough to grasp. With this no-nonsense e-book, you'll learn how to triumph over the newest unencumber of C++. the writer deciphers little-known positive factors of C++, stocks exact code examples for you to then plug into your individual code, and divulges the numerous alterations to C++ that accompany the newest free up. You'll notice tips to layout and construct purposes that clear up real-world difficulties after which enforce the answer utilizing the complete functions of the language.

Appeals to skilled builders who're trying to find a better point of learning
• Drills down the huge alterations to the most recent C++ ordinary, C++11, together with improvements made to run-time functionality, commonplace library, language usability, and middle language
• Zeroes in on explaining the extra poorly understood parts of the C++ function set and addresses universal pitfalls to avoid
• comprises case experiences that function wide, operating code that has been proven on home windows and Linux platforms
• Intertwines textual content with important assistance, tips, and workarounds

Packed with top practices for programming, trying out, and debugging functions, this publication is key for taking your C++ talents to the following level.

Programming Windows, Consumer Preview, 6. Edition

Programming home windows, 6th version will specialise in growing home windows eight apps having access to the home windows Runtime with XAML and C#. The e-book also will supply C++ code samples. The 6th version may be equipped in 3 components: half I, “Elementals,” starts with the interrelationship among code and XAML, easy occasion dealing with, dynamic structure, controls, the appliance bar, regulate customization, and collections.

Advances in Computational and Stochastic Optimization, Logic Programming, and Heuristic Search: Interfaces in Computer Science and Operations Research

Computing device technology and Operations examine proceed to have a synergistic dating and this booklet - as part of theOperations examine and computing device technological know-how Interface sequence - sits squarely within the middle of the confluence of those technical learn groups. The learn awarded within the quantity is facts of the increasing frontiers of those intersecting disciplines and offers researchers and practitioners with new paintings within the parts of good judgment programming, stochastic optimization, heuristic seek and post-solution research for integer courses.

Extra info for Android Application Programming with OpenCV

Sample text

Also, to avoid seeing unnecessary warnings in Eclipse, we add the @SuppressLint("NewApi") annotation to the declaration of onCreate(). Several other activity lifecycle callbacks are also relevant to OpenCV. When the activity goes into the background (the onPause() callback) or finishes (the onDestroy() callback), the camera view should be disabled. When the activity comes into the foreground (the onResume() callback), the OpenCVLoader should attempt to initialize the library. disableView(); } } Note that, in onResume(), we re-enable menu interaction.

Let's start by looking at the onCreate() and onSaveInstanceState() callbacks. These methods, respectively, are called at the beginning and end of the activity lifecycle. The onCreate() callback typically sets up the activity's view hierarchy, initializes data, and reads any saved data that may have been written last time onSaveInstanceState() was called. For details about the Android activity lifecycle, see the official documentation at http://developer. com/reference/android/app/Activity. html#ActivityLifecycle.

We will use OpenCV functionality wherever feasible, even though we could just use the standard Android libraries to display a live camera feed, save a photo, and so on. OpenCV provides an abstract class called CameraBridgeViewBase, which represents a live camera feed. This class extends Android's SurfaceView class, so that its instances can be part of the view hierarchy. Moreover, a CameraBridgeViewBase instance can dispatch events to any listener that implements one of two interfaces, either CvCameraViewListener or CvCameraViewListener2.

Download PDF sample

Rated 4.13 of 5 – based on 15 votes