Book Image

Mastering OpenCV 4 - Third Edition

By : Roy Shilkrot, David Millán Escrivá
Book Image

Mastering OpenCV 4 - Third Edition

By: Roy Shilkrot, David Millán Escrivá

Overview of this book

Mastering OpenCV, now in its third edition, targets computer vision engineers taking their first steps toward mastering OpenCV. Keeping the mathematical formulations to a solid but bare minimum, the book delivers complete projects from ideation to running code, targeting current hot topics in computer vision such as face recognition, landmark detection and pose estimation, and number recognition with deep convolutional networks. You’ll learn from experienced OpenCV experts how to implement computer vision products and projects both in academia and industry in a comfortable package. You’ll get acquainted with API functionality and gain insights into design choices in a complete computer vision project. You’ll also go beyond the basics of computer vision to implement solutions for complex image processing projects. By the end of the book, you will have created various working prototypes with the help of projects in the book and be well versed with the new features of OpenCV4.
Table of Contents (12 chapters)

What is OpenCV.js?

OpenCV.js is a port of some OpenCV functions using new technology that compiles C++ code into JavaScript. OpenCV uses Emscripten to compile C++ functions into Asm.js or WebAssembly targets. Emscripten is an LLVM-to-JavaScript compiler that compiles from low-level virtual machine (LLVM) bitcode to Asm.js or WebAssembly JavaScript, which can be executed in any new web browser. Emscripten works as follows:

The increase in web applications, and the news on web HTML5 standards such as WebGL or WebRTC that allow developers access to webcams, create emerging possibilities for new applications. OpenCV brings to web developers more powerful increase on the browser to develop new algorithms with OpenCV.js, allowing the use of computer vision algorithms and giving possibilities of new applications such as: web virtual reality, web augmented reality, face detection and...