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- W2070946048 abstract "A novel semi-fragile algorithm using the wavelet-based contourlet transform (WBCT) is proposed in the paper. In the WBCT domain, the original image is first decomposed into a low-pass subband and several directional subbands. The watermark is embedded into the directional subbands. The embedding technique is based on the modulated parent-children energy relationship which has semi-fragile characteristics. Both the false alarm and missed detection rate (MDR) are used to evaluate the performance of our scheme. Simulation results showed that our proposed method can localize the malicious tampered region with high accuracy." @default.
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- W2070946048 date "2012-12-01" @default.
- W2070946048 modified "2023-10-18" @default.
- W2070946048 title "A novel algorithm for improving image content authentication and localization accuracy" @default.
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- W2070946048 doi "https://doi.org/10.1109/icwamtip.2012.6413441" @default.
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