The paper presents an imperceptible and robust digital watermarking algorithm using wavelet-based contourlet transform (WBCT), The WBCT can give the anisotropy optimal representation of the edges and contours in the image by virtue of the characteristics of multi-scale framework and multi-directionality. The proposed algorithm takes advantage of the significant texture information of the image to find the embedding watermarking position. Experimental results show the validity of the proposed

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... orithm in terms of both the watermarking invisibility and the watermarking robustness. In addition, the comparison experiments prove the high-efficiency of the proposed method . The paper presents an imperceptible and robust digital watermarking algorithm using wavelet-based contourlet transform (WBCT), The WBCT can give the anisotropy optimal representation of the edges and contours in the image by virtue of the characteristics of multi-scale framework and multi-directionality. The proposed algorithm takes advantage of the significant texture information of the image to find the embedding watermarking position. Experimental results show the validity of the proposed algorithm in terms of both the watermarking invisibility and the watermarking robustness. In addition, the comparison experiments prove the high-efficiency of the proposed method.