Blind Digital Image Watermarking Algorithm Based on the Chain Code

Abstract:

A new blind digital watermarking algorithm based on the chain code is proposed. The chain code is obtained by the characteristics of the original image -the edge contour. The feather can reflect the overall correlation of the vector image, and chain code expression can significantly reduce the boundary representation of the amount of data required. For the watermarking embedding, the original vector image is divided into sub-block images, and two bits of the watermarking information are embedded into sub-block images repeatedly by quantization. For watermarking extracting, the majority decision method is employed to determine the size of the extracted watermark. Experimental results show that the image quality is not significantly lowered after watermarking. The algorithm can resist the basic conventional attacks and has good robustness on the shear attacks.

• Periodical: Advanced Materials Research (Volumes 546-547)
• Pages: 410-415
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.546-547.410
• Online since: July 2012
• Authors: Chun Ge Tang, Tie Sheng Fan, Lei Liu, Zhi Hui Li
• Keywords: Chain Code, Majority Decision Method, Overall Correlation, Quantization

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