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Color Image Watermarking Algorithm Based on Error Correction Coding and Spread Spectrum Modulation
Pages: 8-11
Year: Issue:  17
Journal: Video Engineering

Abstract: 提出一种基于纠错编码和码分多址(CDMA)的彩色图像水印算法,先后将秘密信息进行Arnold置乱,纠错编码,扩频调制.提取宿主图像的绿色分量,对其进行离散余弦变换,将预处理的水印嵌入到变换后的部分中频区域.水印提取部分,首先对待测图像的绿色分量做离散余弦变换,其次提取中频部分的水印信息,将提取的值和由密钥得到的Gold序列集做互相关进行解扩,最后纠错译码并进行Arnold反变换即得到需要的水印序列...
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