By Ali Mohammad Al-Haj
Lately, the great development of electronic expertise has elevated the convenience with which electronic multimedia documents are kept, transmitted, and reproduced. simply because conventional copyright equipment are fallacious for constructing possession, electronic watermarking is taken into account the most effective recommendations to avoid unlawful and malicious copying and distribution of electronic media. complex options in Multimedia Watermarking: photograph, Video and Audio purposes introduces readers to state of the art learn in multimedia watermarking. protecting new developments in electronic photo watermarking and methods for implementation and optimization throughout diversified media, this ebook is a worthwhile significant other for execs and researchers operating in parts equivalent to record watermarking, multimedia fingerprinting, details hiding, secured e-commerce, copyright safety, and implementation of real-time multimedia watermarking.
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Extra info for Advanced Techniques in Multimedia Watermarking: Image, Video and Audio Applications
Y. (2001). Public multiple watermarking resistant to cropping. In Proceedings of the 6th International Conference on Pattern Recognition and Information Processing, (pp. 263–268). Mohanty, S. , & Bhargava, B. K. (2008). Invisible Watermarking Based on Creation and Robust Insertion-Extraction of Image Adaptive Watermarks. ACM Trans. Multimedia Comput. Commun. , 5(2), 12. , & Mirza, A. M. (2007). Genetic perceptual shaping: Utilizing cover image and conceivable attack information during watermark embedding.
Mohamed, E. (2008). Speech Secrecy: An FFT-based Approach. International Journal of Mathematics and Computer Science, 3(2), 1–19. , & Lim, J. (1981). The importance of phase in signals. Proceedings of the IEEE, 69(5), 529–541. , & Rabie, T. (2007). Narrowband CELP Hiding by Wideband Speech. The Ninth IASTED International Conference on Signal and Image Processing (SIP 2007), Honolulu, Hawaii, USA. , & Curtis, S. (1983). Signal synthesis and reconstruction from partial Fourier-domain information.
Only when magnifying the chrominance-a stego image that one starts to see very unnoticeable color artifacts that do not affect the image and are unsuspicious, while it is clear from the magnified luminance stego image that it exhibits severe pattern noise artifacts that are much more suspicious. Figure 5 shows the results of embedding a hidden text black and white image, shown in Figure 5-(b), into the 24-bit color carrier image of Figure 5-(a). The resulting color stego image shown in Figure 5-(c) has no suspicious degradation which is visually confirmed from the high fidelity of the color stego image.