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数字图像水印添加及提取

于 2022-11-18 发布 文件大小:116.64 kB
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代码说明:

% 1、运行MAIN.m即可开始水印的嵌入和提取。% 2、文件夹中的两幅图片为载体图像和水印图像。% 3、其他文件为主程序所调用的自定义函数,说明如下:%  sdwt.m:对图像依视觉能量进行树状小波分解%  embed.m:对标记的嵌入点进行水印嵌入%  nembed.m:对每个节点实施水印嵌入%  sidwt.m:对嵌入后的树形子图以小波逆变换进行重组%  sdwt_ex.m:依密钥树对含水印图像进行分解%  extract.m:依密钥树抽取水印%  nextract.m:对每个节点实施水印抽取%  jadeR.m:JADE算法,用于实现ICA%  fuse_pca.m:PCA算法,用于实现融合%  rand_orth.m:生成混叠矩阵随机数

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