Digital watermarking method for mobile terminal based on image entropy classification

作者：Luo Bin^*; Gu Wei; Lü Wan Li; Tang Jin; Li Li

来源：Journal of South China University of Technology(Natural Science Edition), 2010, 38(5): 34-38.

DOI：10.3969/j.issn.1000-565X.2010.05.007

• Classification ,
• Codebook design
• Codebook training
• Codebooks
• High quality
• Image entropy
• JPEG compression
• Memory capacity
• Mobile terminal
• Multimedia data
• Nearest neighbors
• Processing ability
• Search Algorithms
• Texture image
• Watermarked images
• Watermarking embedding

In order to protect the copyright of multimedia data of mobile terminals, improve the processing ability and enlarge the memory capacity of mobile terminals, a digital watermarking method is proposed. In this method, a novel codebook is designed based on the image entropy classification, the priority of watermarking embedding is provided for complex texture image regions to obtain high-quality watermarked image, and the conventional search algorithm is substituted with the equal-average equal-variance nearest neighbor one to accelerate the coding. Experimental results show that the proposed method can not only improve the codebook quality but also save the codebook training time, and that it is robust to common image processing such as JPEG compression and cropping.

• 出版日期2010
• 单位安徽大学