A Low-Distortion Reversible Watermarking for 2D Engineering Graphics Based on Region Nesting

作者：Lin, Zi-Xing; Peng, Fei^*; Long, Min

来源：IEEE Transactions on Information Forensics and Security, 2018, 13(9): 2372-2382.

DOI：10.1109/TIFS.2018.2819122

• Reversible watermarking
• low distortion watermarking
• region nesting
• 2D engineering graphics

With the aim of reducing the distortion of traditional partitions, this paper investigates a novel method that partitions every square region into 2(n) nesting sub-regions. Based on the partition, a low-distortion reversible watermarking for 2D engineering graphics is proposed. The watermark is embedded by mapping the vertices in the original region to its corresponding sub-regions, and it is extracted according to the locations of the mapped vertices. Meanwhile, the original locations of the vertices can be restored by inverse mapping. Furthermore, by constructing a new coordinate system, the rotation, scaling, and translation semi-fragility of the watermarking can be achieved. Experimental results and analysis show that the proposed watermarking achieves good performance in terms of the capacity and semi-fragility, while the imperceptibility of the watermarking is significantly improved in comparison with the existing algorithms under the same conditions.

• 出版日期2018-9
• 单位湖南大学