pseudo random pattern 中文意思是什麼
pseudo random pattern
解釋
偽隨機模式-
The watermarking scheme based on wavelet decomposition and discrete cosine transform using a binary pattern or gray - level pattern as the watermark, the scheme initially performs wavelet decomposition of the host image and the watermark with different hierarchy. after the pseudo - random permutation, each decomposed layer of the watermark is embedded into the dct domain of corresponding decomposed layer of the host image
基於小波分解和餘弦變換結合的水印方案演算法以二值圖標或灰度圖標作為水印,將原圖像和水印信號分別進行不同層次的小波分解,分解后的水印各分量偽隨機置亂後分別嵌入到原圖像相應分解層各分量的dct域中。
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