Introduction
The DSP world today is ruled by different transforms. Discrete Fourier transforms are most used. So is the fast Fourier transform, which is the faster version of DFT. Suppose we take FFT of a signal. On taking the inverse fast Fourier transform, we except the output to be the same as the input. This is called the invertibility property. But on most occasions, disappointment is the result. This is due to the finite word length of the registers used to store the samples and the coefficients. This seminar introduces a method called i ....etc

[:=Read Full Message Here=:]

Abstract


With the increase in the availability of digital data such as multimedia services on the Internet, there is a pressing need to manage and protect the illegal duplications a, solution to this problem, a digital watermark technology is now drawing the attentions a new method of protecting copyrights for digital data. In this paper, we present two methods of digital watermark for image signals based on the wavelet transform. We classify wavelet coefficients as insignificant or significant by using zero tree which is defined in the e ....etc

[:=Read Full Message Here=:]

INTRODUCTION
THE DISCRETE FOURIER TRANSFORM (DFT) is one of the most funtamental operations in digital signal processing. Because of the efficiency of the convolutional property, the DFT is often used in linear filtering found in many applications such as quantum mechanics, noise reduction and image re-construction. However, the computational requirements for completing the DFT of a finite length signal are relatively intensive. In particular, if the input signal has length N, directly calculating its DFT requires N 2 complex multiplications ( ....etc

[:=Read Full Message Here=:]

A little bit of history .

Jean Baptiste Joseph Fourier (1768 1830)

MGP: Leibniz - Bernoulli - Bernoulli - Euler - Lagrange - Fourier Dirichlet - .

1787: Train for priest (Left but Never married!!).
1793: Involved in the local Revolutionary Committee.
1974: Jailed for the first time.
1797: Succeeded Lagrange as chair of analysis and mechanics at cole Polytechnique.
1798: Joined Napoleon's army in its invasion of Egypt.
1804-1807: Political Appointment. Work on Heat. ....etc

[:=Read Full Message Here=:]

security constrained unit commitment mixed integer linear programming ....etc

[:=Read Full Message Here=:]

wavelet based contourlet transform and its application to image coding ppt

In this paper, we first propose a new family of geometrical image transforms that decompose images both radially and angularly. Our construction comprises two stages of filter banks that are non-redundant and perfect reconstruction and therefore lead to an overall non-redundant and perfect reconstruction transform. Using the wavelet transform as the first stage, we apply directional filter banks to the wavelet coefficients in such a way to maintain the anisotropy scali ....etc

[:=Read Full Message Here=:]

any one plz send

mat lab code,documentation and ppt for topic

adaptive spectral transform for wavelet based color image compression

email id: [email protected] ....etc

[:=Read Full Message Here=:]

Dear sir,
i am currently working on the paper attached to this request.
Try to implement the attached paper.send the matlab code to me.
analysis notes to this paper also send to me.
solvation methods for this paper can be send to me.

thanking you sir.

Regards By
n.ajeeshvali ....etc

[:=Read Full Message Here=:]

Today, as the digitization develops day by day, the protection
of digital information becomes an urgent problem.
In order to resist different kinds of infringement, a new
technology that called watermarking had been put forward
to in the international scope. Watermark is sequence
carrying information about the copyright owner
to embed into the digital image , audios and videos in
order that owners can read it out while unauthorized users
cannot1 easily remove it.
There are many methods to embed the watermark. It
can be divided into ....etc

[:=Read Full Message Here=:]

Video Watermarking using Integer-to-Integer Discrete Wavelet Transform (Java)
Proceedings on Digital Watermarking, TENCON

Abstract:
This paper proposes a novel video watermarking technique to embed a digital watermark in video data using integer-to-integer discrete wavelet transform. The watermark is embedded in the lowest frequency components of each frame. The method exploits features of the human visual system. The watermark can be extracted directly from the decoded video without access to the original video. Experimental resul ....etc

[:=Read Full Message Here=:]