针对彩色图像内容保护问题,提出一种具有视觉感知属性的超复数频域图像水印嵌入算法.该算法首先用傅氏谱残差方法,在HSI颜色空间提取多分辨率彩色载体图像的归一化显著性区域,再对版权水印混沌置乱加密后,将其嵌入至显著性区域所在的超复数颜色矢量中频段系数中,最终实现对彩色图像显著性内容的盲水印保护.实验表明,该方法能够有效抵抗多种常见攻击以及剪切、背景置换等特殊攻击,具有较高的安全性、鲁棒性和不可见性.%An image watermarking insertion algorithm for hypercomplex frequency domain with visual perception object was proposed for protection of colored image content. In the algorithm presented, first the Fourier spectral residual method was used to extract the salient object region of multi-resolution color image in HIS color space. Then, after the copyright watermarking was chaotically scrambled and ciphered, it was embedded into the mid-frequency coefficient of hypercomplex color vector on the salient region. Finally, the protection of blind watermarking of color image salient object was realized. The experimental result showed that the proposed method could be used for effective resistant several common attack and some special attack such as cropping and background replacing, manifesting a higher security, robustness, and invisibility.
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