【作者】 周庆松； 张佑生；

【Author】 Zhou Qingsong Zhang Yousheng Hefei university of technology the institution of computer and information, Hefei 230009

【机构】 合肥工业大学计算机科学与信息学院；

【摘要】 本文提出的DCT域盲水印算法,通过对视觉模型的充分利用,优化了水印的嵌入位置和水印的嵌入强度,确保了水印信号能够在合适的嵌入位置上以尽可能大的嵌入强度嵌入,并且在水印算法的量化调制思想上做了一定改进,使得水印在保持了较好不可见性的同时,其鲁棒性也得到了一定的提高,很好地解决了水印的不可见性和鲁棒性之间的矛盾。实验结果表明,该水印算法对噪音、裁剪以及压缩攻击具有较强的鲁棒性,算法是有效的。更多还原

【Abstract】 The blind scheme about watermarking based on DCT domain which is put forward in the paper makes use of the characteristics on HVS to optimize the embedding position and intensity of watermarking, which make sure the watermarking signal can be embedded in the proper position by the proper intensity, and this scheme improve in the orgin idea about Qatar Information and Marketing. The watermarking keep better imperceptive, at the same time the robustness of the waterrmarking is improved better, here, the conflict between imperception and robustness is better solved. The result of the expriment shows that the scheme is robust to assult of noising、cutting and compression and the scheme is effective.更多还原