基于纠错编码的虚假数字图像水印算法

A False Digital Watermark Algorithm Based on Error-Correcting Code

提出了一种基于纹理子块的小波变换数字水印算法。先将原始图像水印构造成另一个大小相同的虚假水印,然后将此虚假信息进行纠错编码,嵌入到小波变换后中频子带的纹理区内,分析和实验结果表明,构造的虚假水印使原始水印更加安全,纠错编码技术的加入使得水印在抵抗常见攻击如压缩,剪切,滤波等方面的性能有很大提高。

A block-based texture watermarking algorithm in wavelet transform is proposed in this paper. First original image watermark is structured into another false watermark in same size. then this false information is embedded into the texture regions of intermediate frequency bands of DWT after error-correcting codes.Analysis false watermark to the original watermark and experimental results show that the structure of has high secure, error correction coding technology also further improve the robustness of watermarking to common attacks,such as compression,crop and filter.