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Int J Comput Sci Netw Secur 6:35–40 23. Lei B, Soon Y, Zhou F, Li Z, Lei H (2012) A robust audio watermarking scheme based on lifting wavelet transform and singular value decomposition. Sig Process 92(9):1985–2001 24. Arnold M (2000) Audio watermarking: features, applications, and algorithms. In: IEEE international conference on multimedia and expo (II), pp 1013–1016 25. Doerr G, Dugelay JL (2003) A guide tour of video watermarking. Signal Process Image Commun 18(4):263–282 26. Jaseena KU, John A (2011) Text watermarking using combined image and text for authentication and protection.
In most cases, with resolution higher than human perception, data can be hidden in the ‘noisy’ bits or pixels of the image ﬁle. e. steganalysis). One of the most common and naive methods of embedding message bits is LSB replacement in spatial domain where the bits are encoded in the cover image by replacing the least signiﬁcant bits of pixels . 1 Geometric Transformation Methods Geometric transformation is performed by using motion vector calculus , linear and bilinear transformations, meshes, etc.
The former one is used for encryption, and the latter one is used to for decryption . In the next section, a comparative study is made on different encryption techniques used so far. A Survey on Intelligent Security Techniques for High-Deﬁnition … 43 Table 2 Comparative study Criteria Watermarking Steganography Cryptography Carrier Visibility Robustness Capacity Any multimedia data Visible or invisible High Depends on the size of hidden data To protect copyright information Removed Any multimedia data Not visible Moderate Usually low Text ﬁles Visible Less High To prevent discovery of secret message Detected To prevent unauthorized access Deciphered Objective Failure 5 Comparative Study Watermarking, steganography, and cryptography are well-known security techniques and are widely used to provide security for highly conﬁdential data.