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- W2045322268 abstract "Targeting at the incessant securities problems of digital information management system in modern medical system, this paper presents the robust watermarking algorithm for medical images based on Arnold transformation and DCT. The algorithm first deploys the scrambling technology to encrypt the watermark information and then combines it with the visual feature vector of the image to generate a binary logic series through the hash function. The sequence as taken as keys and stored in the third party to obtain ownership of the original image. Having no need for artificial selection of a region of interest, no capacity constraint, no participation of the original medical image, such kind of watermark extracting solves security and speed problems in the watermark embedding and extracting. The simulation results also show that the algorithm is simple in operation and excellent in robustness and invisibility. In a word, it is more practical compared with other algorithms" @default.
- W2045322268 created "2016-06-24" @default.
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- W2045322268 date "2013-11-20" @default.
- W2045322268 modified "2023-09-23" @default.
- W2045322268 title "Medical Images Watermarking Algorithm Based on Improved DCT" @default.
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- W2045322268 doi "https://doi.org/10.4304/jmm.8.6.796-801" @default.
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