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  4. Vol 8, Issue 1, 2025

Optimized Zero-Watermarking Algorithm for Color Stereoscopic Images Based on OPCET

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DOI: 10.23977/jipta.2025.080110 | Downloads: 6 | Views: 324

Author(s)

Chunpeng Wang 1,2, Guangze Li 1,2, Tingting Dai 3, Dandan Han 3

Affiliation(s)

1 Laboratory of Computing Power Network and Information Security, Ministry of Education, Shandong Computer Science Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China
2 Shandong Provincial Key Laboratory of Computer Networks, Shandong Fundamental Research Center for Computer Science, Jinan, 250353, China
3 Shandong Qingcheng Digital Technology Co., Ltd., Jinan, 250353, China

Corresponding Author

Chunpeng Wang

ABSTRACT

Color stereoscopic images have gained widespread attention due to their immersive experience in various applications. However, the accompanying issue of copyright protection has become increasingly prominent. Existing watermarking algorithms fail to effectively model the six-channel structure of color stereoscopic images (left-view R/G/B, right-view R/G/B), neglecting the intrinsic coupling relationships between viewpoints and color channels, resulting in limited robustness. To address this, this paper proposes a zero-watermarking algorithm for color stereoscopic images based on the Octonion Polar Complex Exponential Transform (OPCET) to achieve lossless copyright protection. Additionally, an optimization strategy for magnitude values is introduced to enhance the robustness and anti-attack capabilities of the watermark. Experimental results show that the proposed algorithm exhibits excellent robustness in multiple attack scenarios.

KEYWORDS

Color Stereoscopic Image; Octonion; PCET; Zero-Watermarking; Magnitude Optimization Strategy

CITE THIS PAPER

Chunpeng Wang, Guangze Li, Tingting Dai, Dandan Han, Optimized Zero-Watermarking Algorithm for Color Stereoscopic Images Based on OPCET. Journal of Image Processing Theory and Applications (2025) Vol. 8: 78-88. DOI: http://dx.doi.org/10.23977/jipta.2025.080110.

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