POORU MAHESSH

INTRODUCTION OF JAVA

What is Java? Java is an object-oriented programming language originally developed by Sun Microsystems and released in 1995. Java was originally developed by James Gosling at Sun Microsystems (which has since merge into Oracle Corporation). Java programs are platform independent which means they can be run on any operating system with any type of processor as long as the Java interpreter is available on that system. Java code that runs on one platform does not need to be recompiled to run on another platform, it’s called “write once, run anywhere” (WORA). Java Virtual Machine (JVM) executes Java code, but is written in platform specific languages such as C/C++/ASM etc. JVM is not written in Java and hence cannot be platform independent and Java interpreter is actually a part of JVM. Where is Java being Used? Earlier, java was only used to design and program small computing devices but later adopted as one of the platform independent programming language and now according to Sun, 3 billion devices run java. Java is one of the most important programming language in today’s IT industries.

JSP – Java is used to create web applications like PHP and ASP, JSP(Java Server Pages) used with normal HTML tags, which helps to create dynamic web pages. Applets – This is another type of Java program that used within a web page to add many new features to a web browser. J2EE – The software Java 2 Enterprise Edition are used by various companies to transfer data based on XML structured documents between one another. JavaBeans – This is something like Visual Basic, a reusable software component that can be easily assemble to create some new and advanced application. Mobile – Besides the above technology, Java is also used in mobile devices, many kind of games and services built-in Java. Today, all leading mobile service provider like Nokia, Siemens, Vodafone are using Java technology. Types of Java Applications Web Application Java is used to create server-side web applications. Currently, servlet, jsp, struts, jsf etc. technologies are used. Standalone Application It is also known as desktop application or window-based application. An application that we need to install on every machine or server such as media player, antivirus etc. AWT and Swing are used in java for creating standalone applications. Enterprise Application An application that is distributed in nature, such as banking applications etc. It has the advantage of high level security, load balancing and clustering. In java, EJB is used for creating enterprise applications. Mobile Application Java is used to create application softwares for mobile devices. Currently Java ME is used for creating applications for small devices, and also Java is programming language for Google Android application development. Facts about Java Object Oriented – In java everything is an Object. Java can be easily expanded since it is based on the Object model. Platform independent – C and C++ are platform dependency languages hence the application programs written in one Operating system cannot run in any other Operating system, but in platform independence language like Java application programs written in one Operating system can able to run on any Operating system. Simple – Java is designed to be easy to learn. If you understand the basic concept of OOP java would be easy to master. Secure – With Java’s secure feature it enables to develop virus-free, tamper-free systems. Authentication techniques are based on public-key encryption. Architectural- neutral – Java compiler generates an architecture-neutral object file format which makes the compiled code to be executable on many processors, with the presence Java runtime system. Portable – being architectural neutral and having no implementation dependent aspects of the specification makes Java portable. Compiler and Java is written in ANSI C with a clean portability boundary which is a POSIX subset. POORU MAHESSH (talk) 18:28, 28 November 2016 (UTC)

IMAGE SEGMENTATION

Image Segmentation

Non-contextual thresholding Simple thresholding Adaptive thresholding Colour thresholding Contextual segmentation: Region growing Pixel connectivity Region similarity Region growing Split-and-merge segmentation Texture segmentation: Spectral features References Segmentation partitions an image into distinct regions containing each pixels with similar attributes. To be meaningful and useful for image analysis and interpretation, the regions should strongly relate to depicted objects or features of interest. Meaningful segmentation is the first step from low-level image processing transforming a greyscale or colour image into one or more other images to high-level image description in terms of features, objects, and scenes. The success of image analysis depends on reliability of segmentation, but an accurate partitioning of an image is generally a very challenging problem.

Segmentation techniques are either contextual or non-contextual. The latter take no account of spatial relationships between features in an image and group pixels together on the basis of some global attribute, e.g. grey level or colour. Contextual techniques additionally exploit these relationships, e.g. group together pixels with similar grey levels and close spatial locations. POORU MAHESSH (talk) 18:40, 28 November 2016 (UTC)

Speedy deletion nomination of User:POORU MAHESSH

Hello, and welcome to Wikipedia. A tag has been placed on User:POORU MAHESSH requesting that it be speedily deleted from Wikipedia. This has been done under section U5 of the criteria for speedy deletion, because the page appears to consist of writings, information, discussions, or activities not closely related to Wikipedia's goals. Please note that Wikipedia is not a free web hosting service. Under the criteria for speedy deletion, such pages may be deleted at any time.

If you think this page should not be deleted for this reason, you may contest the nomination by visiting the page and clicking the button labelled "Contest this speedy deletion". This will give you the opportunity to explain why you believe the page should not be deleted. However, be aware that once a page is tagged for speedy deletion, it may be deleted without delay. Please do not remove the speedy deletion tag from the page yourself, but do not hesitate to add information in line with Wikipedia's policies and guidelines. If the page is deleted, and you wish to retrieve the deleted material for future reference or improvement, then please contact the deleting administrator, or if you have already done so, you can place a request here. Flounder fillet (talk) 12:58, 23 May 2024 (UTC)