期刊名称：International Journal of Computer Science & Technology
印刷版ISSN：2229-4333
电子版ISSN：0976-8491
出版年度：2011
卷号：2
期号：4Ver 3
出版社：Ayushmaan Technologies
摘要：The rapid growth of digital media and communication network has highlighted the need for Intellectual Property Rights (IRP) protection technology for digital multimedia. Watermarking of multimedia data has become a hotspot for research in recent years. Watermarking can be used to identify the owners, license information, or other information related to the digital object carrying the watermark. Watermarks can provide the mechanism for determining if a particular work has been tampered with or copied illegally. In this thesis, we present a novel algorithm for robust audio watermarking in image using wavelet transform based on image entropy. The motivation of choosing image as a cover is driven by the fact that human visual system is less sensitive than human auditory system thus an image provides better masking effect. The algorithm is based on decomposition of images using Haar wavelet basis.The hidden data can be recovered reliably under certain attacks such as cropping, compression, noise effect, geometrical attacks and contrast enhancement. As a necessary background, a literature survey of the watermarking techniques is presented. The last part of the thesis analyzes the watermarking results of wavelet-based watermarking technique on different images and audio samples, using various quality assessment metrics.
关键词：Audio Watermarking; Wavelet Tarnsform; Digital Media and;Communication Network.
