A semi-fragile watermarking algorithm for authenticating 2D CAD engineering graphics based on log-polar transformation

Fei Peng, Re-Si Guo, Chang-Tsun Li, Min Long. A semi-fragile watermarking algorithm for authenticating 2D CAD engineering graphics based on log-polar transformation. Computer-Aided Design, 42(12):1207-1216, 2010. [doi]

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