Robust Chaos Based Image Watermarking Scheme for Fractal-Wavelet
نویسندگان
چکیده
Recently, chaos based mapping has widely been applied for image watermarking due to their inherent cryptographic features. Fractals are one of the robust techniques used for image compression. When a Chaotic map is used in conjunction with Fractal-Wavelet, efficiency may be improved in the process of image watermarking. In this paper, Chaos based watermarking method is proposed in cascade with fractal image coding. The proposed scheme has been simulated and analyzed with various geometric and non geometric attacks. The PSNR and BER values are compared with these attacks. The preliminary results show that the proposed scheme performs better with additional robustness.
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تاریخ انتشار 2014