计算机科学 ›› 2018, Vol. 45 ›› Issue (6): 135-140.doi: 10.11896/j.issn.1002-137X.2018.06.023
王倩1, 于来行1,4, 曹彦2, 张磊3, 秦杰1, 叶海琴1
WANG Qian1, YU Lai-hang1,4, CAO Yan2, ZHANG Lei3, QIN Jie1, YE Hai-qin1
摘要: 针对数字图像的版权保护问题,提出一种基于Fibonacci置乱的小波域数字图像盲水印方案。将原图像中的感兴趣区域(ROI)作为水印来源,以此提高水印的隐蔽性。在水印嵌入过程中,将原图像进行分块,对每个块进行Fibonacci置乱和离散小波变换(DWT),选择出低频子带,用于水印嵌入。同时,对水印也执行DWT,选择出低频子带,通过Fibonacci置乱得到置乱矩阵,将水印的置乱矩阵嵌入到主图像的块中。在水印提取过程中,根据嵌入过程中设定的秘钥,通过逆Fibonacci置乱和逆DWT过程提取水印。在多种图像攻击下的仿真结果表明,该水印方案具有较高的安全性、鲁棒性和隐蔽性。
中图分类号:
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