Image Steganography Technique Based on Wavelet Transform
In the technique of steganography, information is concealed in unremarkable cover media so as not to arouse an eavesdropper’s suspicion. It is widely used in the field of information security. The strengths and counter measures are
driven by weaknesses and vulnerabilities. There are easy to use communication channels for steganography. In this article, a modified high-capacity image steganography technique that depends on wavelet transform is described which has acceptable le ....etc

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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

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BLOOD VESSEL ENHANCEMENT AND SEGMENTATION USING WAVELET TRANSFORM
Submitted by
RAHUL RAJAN
DEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERING
SREE CHITRA THIRUNAL COLLEGE OF ENGINEERING, THIRUVANANTHAPURAM - 695 018.
SEPTEMBER 2010

ABSTRACT


Retinal vessel segmentation is an essential step for the diagnoses of various eye diseases. An

automated tool for blood vessel segmentation is useful to eye specialists for purpose of patient screening and clinical study. Vascul ....etc

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This project introduce application of the Wavelet transform in medical image fusion. In medical image fusion, multiple medical images, such as computed tomography (CT) and magnetic resonance (MR) images are fused into a new image to improve the information content for diagnoses. Some attempts have been proposed for the fusion of MR and CT images using the wavelet transform. Since medical images have several objects and curved structures, it is expected that the curvelet transform would be better in their fusion. The simulation results show the ....etc

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Absract
This paper proposes a novel feature extractionscheme for audio fingerprinting using discretewavelet transform (DWT). The proposed schemereduces the granularity, i.e., the minimal length ofaudio, needed for identification in an audiofingerprinting system. The scheme first decomposesthe video frame into sub-bands by DWT
The proposed scheme hastwo advantages:
(1) it needs smaller fingerprintgranularity than other previous work;
(2) it is notonly reliable but also robust against various signal
degradations according to the ex ....etc

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Image Transform & Compression Using Wavelet.

need seminar report ....etc

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For many years signal analyses and processing are being done either in frequency domain or in time domain. However, information about both time and frequency is needed in many cases for proper signal analysis. Multi resolution analysis is a relatively new concept that tries to get time as well as frequency information simultaneously. Wavelet transform is perhaps the most popular technique of multiresolution analysis. The seminar introduces basic concepts of wavelets and multiresolution analysis with respect to its application ....etc

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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 ....etc

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