Binary image watermarks that are scrambled by Logistic chaotic encryption are embedded into the U matrix by LU decomposition in DCT domain.

 
  • 在宿主圖像DCT域構造嚴格對角占優(yōu)陣并進(jìn)行LU分解,之后在U陣中進(jìn)行二值圖像水印嵌入。
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