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Yet Another Steganography Scheme (YASS), a promising steganographic scheme for JPEG images which can resist blind steganlysis via embedding data in randomized locations. However, the randomization is not sufficient enough, as some positions are possible to hold host blocks and some are definitely not. Meanwhile, the artifacts introduced by quantization index modulation (QIM) embedding led to the weakness...
A low power reconfigurable DCT architecture is proposed, which can be run at three transform precision levels for different demands. Using the character of energy distribution of the DCT matrix after 2D DCT operation, we selected the best DCT bases which achieve considerable power reduction in DCT operation with minimum image quality degradation. The reconfigurable architecture can achieve power saving...
A robust audio watermarking scheme based on independent component analysis (ICA) and singular value decomposition (SVD) is presented in this paper. ICA is a novel method of signal processing and data analysis, through which the source signals can be derived from the observed signals even in the case of the source signals and the mixing procedure being unknown, so long as they are independent. SVD...
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