A Novel DWT Based Blind Watermarking for Image Authentication

Provided by: International Journal of Network Security
Topic: Security
Format: PDF
Digital watermarking is a technique which embeds a watermark signal into the host image in order to authenticate it. In the authors' previous paper, a watermark pattern was constructed from the information content of the image in the form of a Hankel matrix, but which was not robust against rotation operation. This paper proposes an innovative watermarking scheme, in which low frequency sub-band of wavelet domain and the rescaled version of original image are utilized in the watermark generation process.

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