A Technique for Orthogonal Frequency Division Multiplexing
Frequency Offset Correction

Abstract:
The Orthogonal Frequency Division Multiplexing (OFDM) is a Multi Carrier Modulation technique employing Frequency Division Multiplexing of orthogonal subcarriers. It is also sometimes called as discrete multitone modulation (DMT). It is better than CDMA in high bit rate and Broadband Communications .It is a multi carrier technique, which is very sensitive to Frequency Offset between transmitter and receiver. Th ....etc

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Hi..
can anyone please send the MATLAB codings for the above project title to
dis mail ID [email protected]..? ....etc

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want the ppt of more secure steganographic method in spatial domain

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please help me , i urgently need the coding part that watermarking on spatial domain,dct, dwt please help me . mail id is [email protected] ....etc

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DIGITAL WATERMARKIG IN SPATIAL DOMAIN
Presented By
Ashok Kumar Sahoo Roll # EI 200118123



OUTLINE
Introduction
Methods
New Image Watermarking Algorithm
Experimental Results
Future Direction
Conclusion


INTRODUCTION
Watermarking is a concept of embedding a special pattern, watermark, into a document
Watermarking is a key process for the protection of copyright ownership of electronic data


INTRODUCTION
An existing scheme for still i ....etc

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fuzzy spatial filtering code

Image Domains

Spatial domain
Refers to the image plane itself
Image processing methods are based and directly applied to image pixels
Transform domain
Transforming an image into a transform domain, doing the processing there and obtaining the results back into the spatial domain

Two principle categories of spatial processing:

Intensity transformation
Spatial filtering
Intensity transformation operate on single pixels of an image
Contrast manipulation
Image thresholding

Spatial filtering dea ....etc

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Efficient Frequency Domain Selective Scrambling of Digital Video at java

Abstract:
Multimedia data security is very important for multimedia commerce on the Internet such as video-on-demand and real-time video multicast. Traditional cryptographic algorithms/systems for data security are often not fast enough to process the vast amount of data generated by the multimedia applications to meet the real-time constraints. This paper presents a joint encryption and compression framework in which video data are scrambled efficiently in the ....etc

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to get information about the topic constructing inter domain packet filtering using bgp updates full report ppt and related topic refer the page link bellow

http://seminarsprojects.net/Thread-constructing-inter-domain-packet-filters-to-control-ip-spoofing-based-on-bgp-updates--5836

http://seminarsprojects.net/Thread-constructing-inter-domain-packet-filters-to-control-ip-spoofing-based-on-bgp-updates--5836?pid=69705 ....etc

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IMAGE ENHANCEMENT TECHNIQUES USING FREQUENCY DOMAIN FILTERING

Image Enhancement?
It is the process of making an image more pleasable than the original image.

Why needed?
Noise introduced in to the image, out-of focus , atmospheric conditions, latency of imaging hardware.

Applications

Medical imaging.
Satellite imaging.
Material testing in industries.
Fingerprint identification.
Printing and publishing industry.

Conclusion

Thus, image enhancement techniques in frequency domain improves the des ....etc

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Abstract

We propose a novel image denoising strategy based on an enhanced sparse representation in transform domain. The enhancement of the sparsity is achieved by grouping similar 2-D image fragments (e.g., blocks) into 3-D data arrays which we call groups. Collaborative filtering is a special procedure developed to deal with these 3-D groups. We realize it using the three successive steps: 3-D transformation of a group, shrinkage of the transform spectrum, and inverse 3-D transformation. The result is a 3-D estimate that co ....etc

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