A Recoverable Semi-Fragile Watermarking Scheme Using Cosine Transform and Adaptive Median Filter

碩士 === 大同大學 === 資訊工程學系(所) === 95 === We present a novel semi-fragile watermarking that can tolerate legitimate processes, and detect and recover tampered regions effectively. To achieve the above goals, the proposed scheme uses Discrete Cosine Transform (DCT) and an adaptive median filter. The propo...

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Bibliographic Details
Main Authors: Pei-da Wu, 吳佩達
Other Authors: Shang-Lin Hsieh
Format: Others
Language:en_US
Published: 2007
Online Access:http://ndltd.ncl.edu.tw/handle/4xzn9u