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- W2917859997 abstract "To resolve the contradiction between existing watermarking methods—which are not compatible with the watermark’s ability to resist geometric attacks—and robustness, a robust multi-watermarking algorithm suitable for medical images is proposed. First, the visual feature vector of the medical image was obtained by dual-tree complex wavelet transform and discrete cosine transform (DTCWT-DCT) to perform multi-watermark embedding and extraction. Then, the multi-watermark was preprocessed using the henon map chaotic encryption technology to strengthen the security of watermark information, and combined with the concept of zero watermark to make the watermark able to resist both conventional and geometric attacks. Experimental results show that the proposed algorithm can effectively extract watermark information; it implements zero watermarking and blind extraction. Compared with existing watermark technology, it has good performance in terms of its robustness and resistance to geometric attacks and conventional attacks, especially in geometric attacks." @default.
- W2917859997 created "2019-03-02" @default.
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- W2917859997 date "2019-02-18" @default.
- W2917859997 modified "2023-10-10" @default.
- W2917859997 title "A Robust Multi-Watermarking Algorithm for Medical Images Based on DTCWT-DCT and Henon Map" @default.
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- W2917859997 doi "https://doi.org/10.3390/app9040700" @default.
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