Individual Restoration of Tampered Pixels for Statistical Fragile Watermarking
Individual Restoration of Tampered Pixels for Statistical Fragile Watermarking
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DOI：
10.1587/transinf.2014mup0006
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
Maki Yoshida;Kazuya Ohkita;T. Fujiwara
中科院分区：
文献类型：
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作者：
Maki Yoshida;Kazuya Ohkita;T. Fujiwara
An important issue of fragile watermarking for image is to locate and restore the tampered pixels individually and accurately. This issue is resolved for concentrated tampering. In contrast, for diverse tampering, only localization is realized. This paper presents a restoration method for the most accurate scheme tolerant against diverse tampering. We analyze the error probability and experimentally confirm that the proposed method accurately restores the tampered pixels. We also show two variations based on the fact that the authentication data used for deriving the watermark is a maximum length sequence code. key words: watermarking, fragile, tampering, detection, restoration, maximum length sequence code
