A Robust Color Image Watermarking Using Maximum Wavelet-Tree Difference Scheme
نویسندگان
چکیده
Digital watermarking is a technique for copyright protection. In literature, many watermarking methods for gray images have been presented. Some of them are directly applied to the luminance component of a color image. A previous method applies to the difference between RGB components instead, and shows that the image quality can be improved. In this paper, we present a robust color image watermarking method to further improve the image quality. The proposed method is based on the maximum wavelet-tree difference scheme. Experimental results show the feasibility of the proposed method.
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