Color medical image lossless watermarking using chaotic system and accurate quaternion polar harmonic transforms

Zhi-qiu Xia, Xingyuan Wang, Wenjie Zhou, Rui Li, Chun-peng Wang, Chuan Zhang. Color medical image lossless watermarking using chaotic system and accurate quaternion polar harmonic transforms. Signal Processing, 157:108-118, 2019. [doi]

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