各种数字水印的matlab源代码,包括DCT,DWT,matlab2013b运行。

上传者: ccsss22 | 上传时间: 2022-04-20 18:08:14 | 文件大小: 1.52MB | 文件类型: RAR
数字水印的嵌入要求即要考虑视觉透明性,又要保证嵌入水印后图像的稳健性,这两个方面存在着矛盾。保证视觉透明性,就要将水印嵌入到人眼不敏感区,也就是嵌入到图像的高频分量中。而多数图像处理方法对于图像高频部分的损坏程度较高,如有损压缩、高频滤波等。

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