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A New Robust Color Image Watermarking Scheme Based on 3D-DCT

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DOI: 10.4236/wjet.2015.33C026    3,725 Downloads   4,100 Views   Citations

ABSTRACT

In this paper, for color image copyright protection application, a new and blind color image watermarking algorithm based on quantitation method in three dimensional discrete cosine transform (3D-DCT) is proposed. Firstly, the original RGB color image is divided into non-overlapping blocks sized 8 × 8 × 3, and then performs 3D-DCT transform on each block. Secondly, embed a bit watermarking signal into each block’s 3D-DCT direct-current (DC) coefficient by quantization method. The results show that the proposed scheme has very good imperceptibility and robustness against the common image processing attacks. Compared with similar algorithm, the proposed scheme has better robustness performance for most attacks.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

Xiong, X. (2015) A New Robust Color Image Watermarking Scheme Based on 3D-DCT. World Journal of Engineering and Technology, 3, 177-183. doi: 10.4236/wjet.2015.33C026.

References

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