...龙源期刊网 关键词:图像认证;双水印;混沌;篡改恢复质量;峰值信噪比 [gap=1272]Key words: image authentication; dual watermark; chaos; tamper recovery quality; Peak SignaltoNoise Ratio (PSNR) ..
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Based on the introduction of digital watermark, an improved dual watermarking algorithm is introduced.
本文在介绍数字水印基础上,提出了一种对以往数字双水印系统的改进算法。
参考来源 - 一种改进的数字音频双水印算法的分析与设计In order to improve the robustness by using of the image characteristics adequately, an image double watermark algorithm based on EMD (Empirical Mode Decomposition) is presented.
为了利用更多的图像特征提高算法鲁棒性,本文提出了一种基于经验模态分解(Empirical Mode Decomposition,EMD)的图像双水印算法。
参考来源 - 基于内容的数字图像水印算法研究·2,447,543篇论文数据，部分数据来源于NoteExpress
而近年来对音频水印的研究远远少于图像水印，双水印的研究则更加少。
Study of digital audio watermarking is less than that of image recently, and dual watermarking is much less.
为提高可恢复双水印算法抵抗伪造攻击的能力，提出一种用于图像篡改检测和恢复的安全双水印算法。
To improve the security against the counterfeiting attack, this paper proposes a secure dual watermark scheme for image tamper detection and recovery.
该文就单水印，双水印以及多水印情形进行了仿真并进行JPEG压缩、图像缩放、剪切等失真测试。
We test the algorithm performance in the cases of single watermark, double watermarks and multi watermarks when different distortions such as JPEG compression, image resizing and cropping are applied.
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