电脑与电信
電腦與電信
전뇌여전신
COMPUTER & TELECOM
2012年
5期
29-30,39
,共3页
数字水印%离散小波变换(DwT)%高频区%鲁棒性
數字水印%離散小波變換(DwT)%高頻區%魯棒性
수자수인%리산소파변환(DwT)%고빈구%로봉성
digital watermark%Discrete Wavelet Transform (DWT)%high frequency region%robustness
提出一种改进DWT的数字水印算法。它以水印信号的强度低于人类视觉的特点，通过对信号的调整，在不改变视觉的效果下嵌入另一个图像；并用MATLAB和实验数据去验证，得到鲁棒性强、安全性高的数字水印图像。
提齣一種改進DWT的數字水印算法。它以水印信號的彊度低于人類視覺的特點，通過對信號的調整，在不改變視覺的效果下嵌入另一箇圖像；併用MATLAB和實驗數據去驗證，得到魯棒性彊、安全性高的數字水印圖像。
제출일충개진DWT적수자수인산법。타이수인신호적강도저우인류시각적특점，통과대신호적조정，재불개변시각적효과하감입령일개도상；병용MATLAB화실험수거거험증，득도로봉성강、안전성고적수자수인도상。
This paper introduces an algorithm of digital watermarking based on Discrete Wavelet Transform （DWT）. According to the strength of watermark signal lower than the characteristics of human vision, the watermarking image is embedded in another image by adjusting the signal which is an invisible digital watermarking. This method will be further illustrated by the example of watermarking system that is developed in Matlab, which obtains watermarking image of good robustness and security.
