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A Rectification Scheme for RST Invariant Image Watermarking
Yan LIU Dong ZHENG Jiying ZHAO
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/01/01
Print ISSN: 0916-8508
Type of Manuscript: Special Section LETTER (Special Section on Cryptography and Information Security)
digital image watermarking, log-polar mapping, filtering, RST invariant,
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This letter presents an image rectification scheme that can be used by any image watermarking algorithms to provide robustness against rotation, scaling and translation (RST) transformations.