Digital Video Watermarking Using Dwt And Pca
نویسندگان
چکیده
منابع مشابه
Digital Video Watermarking Using Dwt and Pca
Digital Watermarking may be a technology used for the copyright protection of digital applications. During this paper, a comprehensive approach for watermarking digital video is introduced, and a hybrid digital video watermarking scheme based on Discrete Wavelet Transform (DWT) and Principal Component Analysis (PCA). PCA helps in reducing correlation among the wavelet coefficients obtained from...
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In recent years, the popularity of digital video based applications is accompanied by the need of copyright protection, to prevent illicit copying and distribution of digital information. Copyright protection inserts authentication data such as ownership information and logo in the digital media, without affecting its perceptual quality. In case of any dispute, authentication data is extracted ...
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Ab stract : This paper presents a technique for embedding w ater mar k into video f ra mes. The proposed sche me is an i mpercept ible and a robust hy b r id video w ater mar king scheme. PCA i s appl i ed to each block of the tw o bands (LL – HH) w hich resul t fro m Discrete Wavele t t rans for m of every video f ra me. The w ater mark is e mbedded into the principal components of the LL bloc...
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Digital video is one of the popular multimedia data exchanged in the internet. Due to their perfectly replicable nature many illegal copies of the original video can be made. Methods are needed to protect copyrights of the owner and prevent illegal copying. A video can also undergo several intentional attacks like frame dropping, averaging, cropping and median filtering and unintentional attack...
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ژورنال
عنوان ژورنال: IOSR Journal of Engineering
سال: 2013
ISSN: 2278-8719,2250-3021
DOI: 10.9790/3021-031144549