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A SECURE AND ROBUST IMAGE DIGITAL WATERMARKING

The digital watermarking is used to protect the intellectual property rights in the multimedia field. It consists of algorithms which embed in digital multimedia data such as video, image or audio, an invisible information related to its owner and its. In order to protect the watermarked data, a cryptographically secure pseudo-noise signal is needed. In this paper we propose a technique for generating a watermark signal which depends on the original by using hash functions and to improve the robustness turbo coding is applied.