电子设计工程
電子設計工程
전자설계공정
ELECTRONIC DESIGN ENGINEERING
2011年
15期
126-128
,共3页
图像水印%Logistic映射%Arnold置乱%DCT变换
圖像水印%Logistic映射%Arnold置亂%DCT變換
도상수인%Logistic영사%Arnold치란%DCT변환
Imaging watermarking%Logistic mapping%Arnold scrambling%DCT
提出了一种基于Logistic映射和Arnold变换的DCT域数字水印算法。利用Arnold变换将原始水印图像进行置乱,然后对图像进行分块DCT变换,结合Logistic映射控制水印信息的嵌入位置,把置乱后的水印图像嵌入到图像的DCT域中频系数中,进行分块DCT反变换得到水印图像。利用图像DCT系数的关系,实现了水印的盲检测。实验结果表明该算法不仅具有较好的隐蔽性,同时对常见的水印攻击具有较好的鲁棒性。
提齣瞭一種基于Logistic映射和Arnold變換的DCT域數字水印算法。利用Arnold變換將原始水印圖像進行置亂,然後對圖像進行分塊DCT變換,結閤Logistic映射控製水印信息的嵌入位置,把置亂後的水印圖像嵌入到圖像的DCT域中頻繫數中,進行分塊DCT反變換得到水印圖像。利用圖像DCT繫數的關繫,實現瞭水印的盲檢測。實驗結果錶明該算法不僅具有較好的隱蔽性,同時對常見的水印攻擊具有較好的魯棒性。
제출료일충기우Logistic영사화Arnold변환적DCT역수자수인산법。이용Arnold변환장원시수인도상진행치란,연후대도상진행분괴DCT변환,결합Logistic영사공제수인신식적감입위치,파치란후적수인도상감입도도상적DCT역중빈계수중,진행분괴DCT반변환득도수인도상。이용도상DCT계수적관계,실현료수인적맹검측。실험결과표명해산법불부구유교호적은폐성,동시대상견적수인공격구유교호적로봉성。
A digital watermarking algorithm based on logistic mapping and arnold scrambling is proposed.It uses the arnold transformation to scramb the original watermark image.And then make the block DCT transformation of the image is made.The logistic map is used to control the embedded position of the watermarking information,the watermarking information is embeded to the middle frequency of the image,then the image with watermarking information is gotten by block inverse DCT transformation.Experimental results show that the algorithm not only have good masrk,but also have good robustness to frequently watermarking attacks.
