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- W2380418491 abstract "Watermarking over the spatial domain has advantages of high speed and easy realization, but there is a difficult problem that is how to improve the security and capability to against scrapping. A robust watermarking algorithm based on chaotic map is presented. First, the original binary watermark is masked by a binary chaotic sequence and the original image is permuted according to a chaotic map. Then, the masked watermark is used to modify the 4th, 5th, or 6th bit of the corresponding pixels in the permuted image. Finally, the permuted and watermarked image is inverse-permuted and the result is obtained. The Matlab simulation results have demonstrated that the scheme has a good transparence and resistance to be cropped .The extracted watermarks are still readily recognizable even if cropped by 75%." @default.
- W2380418491 created "2016-06-24" @default.
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- W2380418491 date "2005-01-01" @default.
- W2380418491 modified "2023-09-24" @default.
- W2380418491 title "A Resisting Cropping Robust Watermarking Algorithm Based on Chaotic Map" @default.
- W2380418491 hasPublicationYear "2005" @default.
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