A Robust Watermarking Scheme for Online Multimedia Copyright Protection Using New Chaotic Map

Figure 14

The watermark images after extracting the watermark form the noisy watermarked images. (a) The watermark extracted from Figure 13(a), (b) the watermark extracted from Figure 13(b), and (c) the watermark extracted from Figure 13(c). It can be observed that the extraction is successful with minor changes. The results confirm the robustness of our proposed watermarking algorithm.

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(b)

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