Adaptive multi-resolution halftone image embedding

Shuangshuang Wen; Guangxue Chen; Zhen Liu; Qifeng Chen; Ruixin Xu

doi:10.1117/12.910566

28 October 2011 Adaptive multi-resolution halftone image embedding

Shuangshuang Wen, Guangxue Chen, Zhen Liu, Qifeng Chen, Ruixin Xu

Proceedings Volume 8205, 2011 International Conference on Photonics, 3D-Imaging, and Visualization; 82050C (2011) https://doi.org/10.1117/12.910566
Event: 2011 International Conference on Photonics, 3D-imaging, and Visualization, 2011, Guangzhou, China

Abstract

In the publishing and printing applications, hidden data is embedded into images for copyright protection and ownership generally. Based on the multi-resolution halftone watermarking (MRHW), adaptive multi-resolution halftone watermarking algorithm (AMRHW) is proposed in the paper. According to the characteristics of the carrier image, the pixels of the watermark halftone image are embedded into the position of the minimal impact in the carrier image, and the locations of these pixels are stored in the decoding matrix. Then, the carrier image is processed by error diffusion, and thus the watermarked image is obtained. In the watermark extraction process, according to the data of the decoding matrix, the corresponding pixels are extracted and grouped together. The watermark image is viewed directly. The results show that the AMRHW can obtain better quality of the embedding than the MRHW, while the decoding matrix can ensure great security of the watermark image.

Citation Download Citation

Shuangshuang Wen, Guangxue Chen, Zhen Liu, Qifeng Chen, and Ruixin Xu "Adaptive multi-resolution halftone image embedding", Proc. SPIE 8205, 2011 International Conference on Photonics, 3D-Imaging, and Visualization, 82050C (28 October 2011); https://doi.org/10.1117/12.910566

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KEYWORDS

Digital watermarking

Halftones

Diffusion

Image quality

Image processing

Data hiding

Binary data

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