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Double Reversible Watermarking Algorithm for Image Tamper Detection
2016
Journal of Information Hiding and Multimedia Signal Processing
Since existing methods show low tamper detection efficiency and inaccurate positioning, a dual reversible watermarking algorithm with tamper detection based on the multi-scale decomposition is proposed. To begin with, the original image is decomposed into multi-scale image blocks that are non-fixed size but yield high homogeneity. Afterwards, the singular value decomposition is performed on each sub-block and the singular value norm is extracted. Meanwhile, logistic chaotic mapping is used to
dblp:journals/jihmsp/ZhangWLLZ16
fatcat:dviw6qd2vbc2pc7h2s44pzkuwa