Advanced Digitalvideo Watermarking Using Dwt with Pca
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چکیده
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 blocks and HH blocks in di f ferent w a ys. Co mbining the tw o trans for ms improved the perfor mance of the w ater mark alg ori thm. The sche me is tes ted by apply ing var ious attacks. Ex peri mental resul t s show no vi s ibl e di f f erence betw een the w ater marke d fra mes and the or ig inal f rames and show the robu stness ag ains t a attac ks.
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Digital Video Watermarking Using Dwt and Pca
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تاریخ انتشار 2013