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Robust watermarking algorithm based on DWT optimal multi-subgraph and SIFT geometric correction

Li Yingying

Zhang Yifeng

Cheng Xu

Sun Yibo

DWT-DCT digital watermarking

spread transform QIM

particle swarm optimization(PSO)

scale invariant feature transform(SIFT)

2019年第6期 : 1819-1823,1827 doi:10.19734/j.issn.1001-3695.2018.01.0042