Details

Autor(en) / Beteiligte

• Zhang, Zhengwei
• Wu, Lifa
• Xiao, Shaozhang
• Gao, Shangbing

Titel

Adaptive reversible image watermarking algorithm based on IWT and level set

Ist Teil von

• EURASIP journal on advances in signal processing, 2017-02, Vol.2017 (1), p.1-16, Article 15

Ort / Verlag

Cham: Springer International Publishing

Erscheinungsjahr

2017

Quelle

SpringerNature Journals

Beschreibungen/Notizen

• In order to improve the robustness, imperceptibility, and anti-malicious extraction capability of reversible image watermarking, an adaptive reversible image watermarking algorithm based on IWT and level set is proposed in this paper. Firstly, the stable edge profile is extracted by using the Laplace operator and the level set methods. Secondly, the unit circle in the stable edge profile is determined. Finally, the inscribed square area of the determinate unit circle is divided into non-overlapping blocks. Each sub-block is performed by IWT, and the HVS is used to embed the watermark adaptively. The simulation results show that the algorithm has good invisibility and can resist various attacks. The algorithm not only has strong robustness but also can lossless recover the original image.