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Title: Watermarking based image authentication using feature amplification
Authors: Ye, S.
Chang, E.-C. 
Sun, Q.
Issue Date: 2005
Citation: Ye, S.,Chang, E.-C.,Sun, Q. (2005). Watermarking based image authentication using feature amplification. IEEE International Conference on Multimedia and Expo, ICME 2005 2005 : 610-613. ScholarBank@NUS Repository.
Abstract: In a typical content and watermarking based image authentication approach, a feature is extracted from the given image, and then embedded back into the image using a watermarking method. Since the entropy of the feature might be higher than the capacity of the watermarking scheme, or the feature is represented in a continuous domain, it has to be further quantized before embedding. The lost of information during quantization potentially degrades the overall performance of the authentication scheme. This paper propose a simple but effective approach that avoids the feature quantization by additive feature: the feature is firstly added into the image before watermark embedding, and latterly subtracted from the watermarked image. In our experiments, the proposed approach obtains larger achievable robustness/sensitivity region and has a smaller fuzzy region of authenticity than the typical approach. © 2005 IEEE.
Source Title: IEEE International Conference on Multimedia and Expo, ICME 2005
ISBN: 0780393325
DOI: 10.1109/ICME.2005.1521497
Appears in Collections:Staff Publications

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