A reversible image watermarking algorithm using linear space hiding model

作者：Jiang Chuan Xian^*; Yang Tie Jun; Dong Ming Gang; Cheng Xiao Hui; Li Zhi

来源：Acta Automatica Sinica, 2014, 40(10): 2324-2333.

DOI：10.3724/SP.J.1004.2014.02324

• Integer wavelet transforms
• Linear spaces
• Lossless watermarking
• Multiple watermarks
• Probability of false positives
• Reversible image watermarking
• Reversible watermarking
• Watermarked images

This paper presents a reversible image watermarking algorithm using linear space hiding model. The proposed algorithm divides an orginal image into a number of non-overlapping blocks, applies an integer wavelet transform to these blocks, respectively, and gains the carrier to embed the watermarking. According to the 0/1 watermarking sequence and the linear space hiding model, the watermark is imperceptibly embedded into the wavelet domain of the image, which improves the robustness and invisibility of the watermarking. According to the parity, we extract the watermarking is extracted and the original carrier is covered by a simple reverse translation. The linear space hiding model allows multiple watermarks to remain independent, so that the algorithm can be extended to the field of multi-copyright lossless watermarking. Furthermore, the majority voting is used to improve the robustness of watermarking and reduce the probability of false positives. The original data can be recovered losslessly from the unmodified watermarked image by users who own the private key and secret parameters. Experimental results show that, compared with the existing algorithms, the embedded digital watermarks with the proposed algorithm are invisible and robust against non-malicious attacks such as JPEG compression, JPEG 2000 compression and Gaussian noise to a certain degree.

• 出版日期2014
• 单位桂林理工大学