科技信息
科技信息
과기신식
SCIENTIFIC & TECHNICAL INFORMATION
2011年
31期
753,765
,共2页
Text image%Digitnl watermarking
Text image%Digitnl watermarking
Text image%Digitnl watermarking
In this paper,two text digital watermarking methods are compared in the context of their robustness performances.A nonlinear watermarking algorithm embeds the watermark into the reordered DCT coefficients of a text image,and utilizes a nonlinear detector to detect the watermark in some attacks.Compared with the classical watermarking algorithm,experimental results show that this nonlinear watennarking nlgorithm has some potential merits.
In this paper,two text digital watermarking methods are compared in the context of their robustness performances.A nonlinear watermarking algorithm embeds the watermark into the reordered DCT coefficients of a text image,and utilizes a nonlinear detector to detect the watermark in some attacks.Compared with the classical watermarking algorithm,experimental results show that this nonlinear watennarking nlgorithm has some potential merits.
In this paper,two text digital watermarking methods are compared in the context of their robustness performances.A nonlinear watermarking algorithm embeds the watermark into the reordered DCT coefficients of a text image,and utilizes a nonlinear detector to detect the watermark in some attacks.Compared with the classical watermarking algorithm,experimental results show that this nonlinear watennarking nlgorithm has some potential merits.
