Enhancing Robustness and Invisibility of Color Image Watermarking Through Discrete Hankel and Hadamard Transforms

Ziyang Liu, Xiaodong Chen, Chongyu Shi, Gang Wang, Qingtang Su. Enhancing Robustness and Invisibility of Color Image Watermarking Through Discrete Hankel and Hadamard Transforms. CSSP, 44(12):9484-9511, December 2025. [doi]

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