Ashok's Programming World

Sunday, February 26, 2012

Number Plate Extraction using MATLAB

The number plate extraction in MATLAB can be accomplished using Image Proccessing Tools available in MATLAB. The functions provided by the Image Processing ToolBox makes it easy to process any images to extract the data from it.
The algorithm for extracting number plate can be summarized as:-

Node.js : Introduction

Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, perfect for data-intensive real-time applications that run across distributed devices.

Node.js was created by Ryan Dahl starting in 2009

Traditional Web Servers

The “traditional” mode of web servers has always been one of the thread-based model. You launch Apache or any other web server and it starts receiving connections. When it receives a connection, it holds that connection open until it has performed the request for the page or whatever other transaction was sent. If it make take a few microseconds to retrieve a page from disk or write results to a database, the web server is blocking on that input/output operation. (This is referred to as “blocking I/O“.) To scale this type of web server, you need to launch additional copies of the server (referred to as “thread-based” because each copy typically requires another operating system thread).

MATLAB and Image Processing

Matlab contains a huge resources for image processing. It has Image Processing Toolbox which can be used to process any kind of image files.Image Processing Toolbox™ provides a comprehensive set of reference-standard algorithms and graphical tools for image processing, analysis, visualization, and algorithm development. You can perform image enhancement, image deblurring, feature detection, noise reduction, image segmentation, spatial transformations, and image registration. Many functions in the toolbox are multithreaded to take advantage of multicore and multiprocessor computers.

Model View Controller ( MVC ) Architecture

MVC Framework is a software architecture used in software engineering. Model View Controller (MVC) pattern creates applications that separate the different aspects of the application (input logic, business logic, and UI logic), while providing a loose coupling between these elements.

The model manages the behaviour and data of the application domain, responds to requests for information about its state (usually from the view), and responds to instructions to change state (usually from the controller). In event-driven systems, the model notifies observers (usually views) when the information changes so that they can react.