A novel video watermarking scheme based on DWT and PCA

Abstract

Digital Video Watermarking is one of the great applications of hiding the data in the video for many kind of application like copyright information hiding, secure data travelling etc. Various watermarking techniques are popular in the research community e.g. Discrete wavelet transform (DWT), Discrete cosine transform (DCT), Principal component analysis (PCA). In this paper, Video Water Marking (VWM) scheme related to DWT and PCA is used.DWT and PCA are utilized in the proposed algorithm which enhances the watermarking embedding and decrypting technique. An Arnold’s cap map method has been introduced in the DWT mechanism due to which the algorithm become more robust and difficult for the attackers. Data are embedded in the LL –HH sub-band of wavelet coefficients and decoding is encountered based on difference and comparison of elements of the first principal component. The resultant video is unsusceptible to much kind of attacks like uniform, Gaussian Noise and Median Filtering.