Ashok's Programming World

Windows 7 doesn’t provide access to telnet client in default. More than likely this was an attempt to make Windows more secure by default, as Telnet is very insecure and whenever you have the choice you should always use SSH. However, with that being said, you can quickly re-enable Telnet by following these steps:

The access of localhost in normal way can be bit tricky in Andriod SDK.

The normal way of accessing the localhost is :-

http://localhost or http://127.0.0.1

There are lots of ways of generating random strings in SQL Server. But instead of spending much time on finding solution to random password generation, here is an easy way to do that.

Cursors are great way to loop through records in SQL specialy when you need to deal with individual records from certain table.

Here is a example using cursor;

There will be case when you need to convert the values in Imperial system i.e. in feet and inches to the one in metric system. The conversion logic seems simple, but when it comes to SQL Server, it takes a bit complex.

Here is the function which can convert imperial unit of measurement to the metric system.

I have been searching for resetting the Auto increment value of ID Column in MSSQL Server 2008 and finally solved the problem. You can simply do the following in SQL.

The following line resets the Identity value for the ‘MyTable’ table to 0 so that the next record added starts at

Image processing can be used to process various objects in various ways and one for them is the face detection. The face detection system has got many applications and developing such a system is even easier by use of the Image Processing ToolBox available in MATLAB.

The detection of face involves various tasks. They can be summarized in three steps as:-

1. reading of a RGB image
2. minimisation of background portion
3. detection of face object

There may be situations when we need certain frames from video. You can extract the video frames easily in MATLAB and save to any image format that MATLAB imwrite function supports or you can process the frames directly.

There is a function class called ‘VideoReader’

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 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.

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.