论文信息 - A digital watermark algorithm based on DCT and improved Watson perceptual model

A digital watermark algorithm based on DCT and improved Watson perceptual model

An adaptive image watermarking algorithm is proposed based on block Discrete Cosine Transformation(DCT) and the improved perceptual model of Human Visual system(HVS).At first, the digital watermark is transformed by Arnold, then it is effective to make full use of the improved perceptual model in DCT domain and the feature of the subblock luminance to control the strength of the watermark embedded.However, the method can perfect the fidelity of the host image and the robustness of digital watermark. Simulation results demonstrate that the algorithm of watermarking system make a great balance between transparency and robustness, which has a certain practical value. Keywords-digital watermark; DCT; HVS; the improved perceptual model; JND

Shaoyu Chen | Xinwei Wang | Shaoyu Chen | Xinwei Wang

[1] Yang Bo. Information hiding and digital watermarking , 2003 .

[2] Xingming Sun,et al. Robust Adaptive Image Watermarking using Visual Models in DWT and DCT Domain , 2010 .

[3] Ingemar J. Cox,et al. Secure spread spectrum watermarking for multimedia , 1997, IEEE Trans. Image Process..

[4] Wu Shu-ying. Digital Watermarking Technology and its Application , 2005 .

[5] Andrew B. Watson,et al. Visually optimal DCT quantization matrices for individual images , 1993, [Proceedings] DCC `93: Data Compression Conference.

[6] Lu Zheng-ding,et al. An Energy Modulated Watermarking Algorithm Based on Watson Perceptual Model , 2006 .

[7] Cong Jin,et al. Image Watermarking Based HVS Characteristic of Wavelet Transform , 2006, 2006 International Conference on Intelligent Information Hiding and Multimedia.

[8] Cheng Wei,et al. Image Watermarking in DCT:an Embedding Strategy and Algorithm , 2000 .

[9] Wang-sheng Fang,et al. A Watermark Preprocessing Algorithm Based on Arnold Transformation and Logistic Chaotic Map , 2011 .