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6 May 2019 A blind watermarking algorithm based on SIFT and Its application in mobile police system
Na Li, Shifeng Li, Guangqi Liu, Yanling Zhao
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Proceedings Volume 11069, Tenth International Conference on Graphics and Image Processing (ICGIP 2018); 1106926 (2019) https://doi.org/10.1117/12.2524249
Event: Tenth International Conference on Graphic and Image Processing (ICGIP 2018), 2018, Chengdu, China
Abstract
Digital watermarking, as an important information security technology, can play a dual role of evidence tracing and encryption in Mobile Police System. In the process of uploading photographic pictures, the poor connectivity and stability of wireless network will greatly affect the robustness of watermarking algorithm. In this study, we proposed a blind watermarking algorithm based on SIFT feature points meanwhile with the idea of spread spectrum.The algorithm extracts sufficient sub-blocks of the host image using feature points to achieve high invisibility and extends multiple times of the original watermark to achieves high robustness and security. Experiment results show that the invisibility and robustness of watermark by using SIFT feature points are better than several other feature extractors and the algorithm meets the application requirements of Mobile Police System.
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Na Li, Shifeng Li, Guangqi Liu, and Yanling Zhao "A blind watermarking algorithm based on SIFT and Its application in mobile police system", Proc. SPIE 11069, Tenth International Conference on Graphics and Image Processing (ICGIP 2018), 1106926 (6 May 2019); https://doi.org/10.1117/12.2524249
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KEYWORDS
Digital watermarking
Image quality
Network security
Computer security
Evolutionary algorithms
Image compression
Image processing
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