[PDF] Top 20 An Authentication Method for Digital Audio Using a Discrete Wavelet Transform

... on Authentication Ratio All authentication ratios described above were obtained using a DWT at level ...The authentication ratio does not noticeably change at bit rates of from 64 to 128 ... See full document

... several digital watermarking techniques have been proposed for hiding data in the fre- quency domain of moving image files to protect their ...an authentication method using a discrete ... See full document

... The audio watermarking schemes have now been widely used to fix the copyright defence issues of digital audio related to illegal application or ...watermarked audio and being robust against ... See full document

... Digital audio watermarking involves the process of embedding into a host audio signal, a perceptually transparent digital signature carrying a message about the host ...of digital ... See full document

... a method for embedding some information into digital video ...text, audio, image, ...analysis, digital-analog (AD/DA) conversion, and lossy compressions. The digital watermarking system ... See full document

... for authentication applications. In transform domain approaches, a mathematical transform is applied to the original image to embed watermark into the transform coefficients, then apply ... See full document

... of digital multimedia content has become an important issue for content owners and service providers are protection of digital media ...A digital watermark is covertly embedded in a noise tolerant ... See full document

... image authentication and copy right ...research. Digital watermarking is a popular technique that is used for copyright protection and ...authentication. Digital watermarking is hiding the ... See full document

... of digital technologies, a large number of applications in the areas of the multimedia communications and multimedia networking have been enable over the past ...the authentication and the copyright ... See full document

... the digital watermarking ...of transform is carried out. Discrete Fourier Transform (DFT), Discrete Cosine Transform (DCT), Discrete Wavelet Transform (DWT) ... See full document

... The concept used in the DCT method is to replace the DCT coefficients in the image into a new coefficient using discrete cosine wave function [5]. Selection of the replaced coefficients may vary ... See full document

... [4], digital watermarking has been investigated deeply for its technical and commercial feasibility in all media types like, digital photographic image, printed materials or document images and ...proven ... See full document

... non-blind digital watermarking method based on Discrete Wavelet Transform by embedding a scrambled watermark in a middle frequency sub-band of the ...scrambled using Arnold ... See full document

... and audio conveyance, advanced stores and libraries, and Web ...the digital inquiry that emerges in these applications is the information ...on digital watermarking (DW) ... See full document

... Least Significant Bit embedding is simple strategy of watermarking. It embeds the data into the cover message so that it cannot be detected by visual eyes. This method works by replacing bits with secret message. ... See full document

... Digital media can be copied and modified easily so protecting the copyright of digital media has become an important ...The digital watermark is introduced to solve the problem of ...The ... See full document

... In this process 2D DWT is performed on the cover image that decomposes the image into four sub-bands: low frequency approximation, high frequency diagonal, low frequency horizontal and low frequency vertical sub- bands. ... See full document

... and authentication of transmission data in an exceedingly much networked setting, it makes possible to identify the author, owner, approved client of document victimization Discrete Cosine Transformation ... See full document

... DNA using computationally efficient algorithms is become a major area of research in computational ...the digital signals which are represented by a sequence of ... See full document

... function and its dilation and translation to generate a set of orthonormal basis functions to represent a signal. Number of such functions is infinite and we choose one that suits to our application. The range of ... See full document