Decoder Gradient Shields: A Family of Provable and High-Fidelity Methods Against Gradient-Based Box-Free Watermark Removal

Haonan An 0001, Guang Hua 0001, Wei Du, Hangcheng Cao, Yihang Tao, Guowen Xu, Susanto Rahardja, Yuguang Fang. Decoder Gradient Shields: A Family of Provable and High-Fidelity Methods Against Gradient-Based Box-Free Watermark Removal. IEEE Trans. Dependable Sec. Comput., 23(3):5015-5028, May - June 2026. [doi]

Abstract

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