基于感兴趣区域的彩色图像数字水印

Watermarking Algorthms of Color Image Based on the Interested Regin

提出了一种基于感兴趣区域和混沌映射的多通道彩色数字图像水印的算法。该算法利用一维混沌算法对初值的敏感性和非周期性对水印图像加密。通过对图像进行小波变换和分析,在考虑人类视觉特性(HVS)的基础上,在彩色图像的多个通道嵌入水印,实现了水印的盲提取,增强了算法的适用性。实验的结果表明,该算法对常用的攻击,如JPEG压缩、加噪、剪切和滤波等攻击具有较好的鲁棒性。

In this paper,A new watermarking algorithm based-on the region of interst and chaotic map is proposed for multi-channel color digital image.The algorithm uses the one-dimensional chaotic sequences on initial sensitivity and non-cyclical to the watermark image encryption.Through the wavelet transform and image analysis,considering the human visual characteristics（HVS）,the watermarking was embededd in the multiple channels（R,G,B）.The Experimental results show that the algorithm can keep the good robustness under the attack such as compression,plus noise,shear and filtering.