文章基本信息

标题：Novel Digital Image Watermarking Using LWT-WHT-SVD in YCbCr Color Space
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作者：Piyush Pandey ; Rakesh Kumar Singh
期刊名称：International Journal of Innovative Research in Computer and Communication Engineering
印刷版ISSN：2320-9798
电子版ISSN：2320-9801
出版年度：2017
卷号：5
期号：6
页码：11844
DOI：10.15680/IJIRCCE.2017.0506053
出版社：S&S Publications
摘要：Image authentication under various transmission conditions is very challenging task and to solve thisproblem I have to do a robust method for watermarking. In this paper, To enhance the performance of watermarkingsystem we propose Walse Hadamard Transform domain approach in YCbCr color space using the unique combinationof 2–Level Lifting Wavelet Transform (LWT) and Singular Value Decomposition (SVD).Every stages of the systemare tested. YCbCr color space is used to make use of its decorrelation property in order to increase the correlationbetween cover and watermarked final image. LWT stage selectively uses the detail coefficients of the 2–dimensionalLWT of an image. After applying LWT we apply WHT (Walse Hadamard Transform) to find the WHT coefficient andat the final we apply SVD on each coefficient to get the final watermarked image. Through this method we find thePSNR value is increase. So this method gives the better results in terms of increasing PSNR value and is able towithstand a variety of image processing attacks.
关键词：Digital Image Watermarking; Walse Hadamard Transform; Lifting Wavelet Transform; YCbCr Color;Space; etc.