Digital watermarking based on self-similarity in DWT of image

Hanqiang Cao; Guang-Xi Zhu; Yaoting Zhu; Zhengbing Zhang

doi:10.1117/12.442898

26 September 2001 Digital watermarking based on self-similarity in DWT of image

Hanqiang Cao, Guang-Xi Zhu, Yaoting Zhu, Zhengbing Zhang

Proceedings Volume 4551, Image Compression and Encryption Technologies; (2001) https://doi.org/10.1117/12.442898
Event: Multispectral Image Processing and Pattern Recognition, 2001, Wuhan, China

Abstract

Digital watermarking has been recently proposed as the mean for property right protection of digital products. In this paper we analyze the self-similarities in detail signals of discrete wavelet transform of the image for the purpose of protecting the copyright of the image. The signature embedded using this method is retrievable only by the mean of protected information. Our studies have shown that the watermarked image has a good quality of image, and such a watermark is difficult to detect and unchangeable without the appropriate user crytogram.

Citation Download Citation

Hanqiang Cao, Guang-Xi Zhu, Yaoting Zhu, and Zhengbing Zhang "Digital watermarking based on self-similarity in DWT of image", Proc. SPIE 4551, Image Compression and Encryption Technologies, (26 September 2001); https://doi.org/10.1117/12.442898

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