Hi I am Jahnavi.I want to do project in image processing. I have selected the main topic like error concealment. I need some matlab programs for that related topic. I em trying to implement IEEE paper published in 2006, Adaptive MAP Error Concealment for Dispersively Packetized Wavelet-Coded Images.

Abstract—In this paper, we present an adaptive maximum a posteriori (MAP) rror concealment algorithm for dispersively packetized wavelet-coded images. We model the subbands of a waveletcoded image as Markov random fields, and use the edge ....etc

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Locally Adaptive Passive Error Concealment
for Wavelet Coded Images

Joost Rombaut, Aleksandra Piˇzurica, Member, IEEE, and Wilfried Philips, Member, IEEE



Abstract—

This letter presents a novel locally adaptive error concealment
method for subband coded images. For each lost low-frequency
coefficient, we estimate the optimal interpolation weights
from its neighborhood. The calculation of the interpolation weights
is optimized in the mean squared error sense, and it takes into acco ....etc

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In the recent years communication technology and services have advanced. Mobility has become very important, as people want to communicate anytime from and to anywhere. In the areas where there is little or no infrastructure is available or the existing wireless infrastructure is expensive and inconvenient to use, Mobile Ad hoc NETworks, called MANETs, are becoming useful. They are going to become integral part of next generation mobile services. A MANET is a collection of wireless nodes that can dynamically form a network to exchange informati ....etc

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Steganography ,from the Greek, means covered or secret writing, and is a long-practiced form of hiding information. Although related to cryptography, they are not the same. Steganography's intent is to hide the existence of the message, while cryptography scrambles a message so that it cannot be understood.

Steganography includes a vast array of techniques for hiding messages in a variety of media. Among these methods are invisible inks, microdots, digital signatures, covert channels and spread-spectrum communications. Today, thanks to moder ....etc

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Steganography ,from the Greek, means covered or secret writing, and is a long-practiced form of hiding information. Although related to cryptography, they are not the same. Steganography's intent is to hide the existence of the message, while cryptography scrambles a message so that it cannot be understood.

Steganography includes a vast array of techniques for hiding messages in a variety of media. Among these methods are invisible inks, microdots, digital signatures, covert channels and spread-spectrum communications. Today, thanks to moder ....etc

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Packet loss concealment using audio morphing

Presented By:
Franck Bouteille¹
Pascal Scalart²
Balazs Kövesi²


Motivation


In packet data networks, excess traffic leads to delays or loss in delivery of information. In voice communication, long delays are intolerable and network delay budgets have strong influence on the design of packet voice systems.
To increase the tolerance of packet voice systems to lost packets some techniques have been developed.
These techniques do not use the a posteriori informati ....etc

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Many online documents (such as the RFCs) prepared before the days of the WWW make extensive use of ASCII Art (diagrams made up from normal characters). The project is to develop software to convert such diagrams into GIF (or similar) images suitable for incorporation in WWW pages. ....etc

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Online Art Gallery
Development tool: ASP.NET
Database : MS SQL SERVER/MYSQL
Online Art Gallery is an Online application, which is used to display and sell art works of artist irrespective of their nationality, gender and other narrow consideration, through auction. Artist can register online for being a member in the art gallery and each artist can upload the digital copy of their art work under the respective categories. They can host their art work either for auction or for fixed price. The arti ....etc

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Ascii Art Generator ....etc

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This article is presented by:
Francis M. David, Ellick M. Chan, Jeffrey C. Carlyle, Roy H. Campbell
Department of Computer Science
University of Illinois at Urbana-Champaign
201 N Goodwin Ave, Urbana

Cloaker: Hardware Supported Rootkit Concealment

Abstract
Rootkits are used by malicious attackers who desire to run software on a compromised machine without being de- tected. They have become stealthier over the years as a consequence of the ongoing struggle between ....etc

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